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6. All metallic pipes (including water, medical gas, sprinklers, etc.) entering the RF Shield,

excluding the Cryogenic Vent and floor drains, must be located within 56 inches (1422 mm)

of the RF Common Ground Stud

7. The illustration below shows a typical ground layout

Illustration 3-22: Typical Magnet Room Grounding

SIGNA Voyager Pre-Installation

Direction 5680008–1EN, Revision 2

9 Magnet Room Electrical and Grounding Requirements

Summary of Contents for SIGNA Voyager

Page 1: ...SIGNA Voyager Pre Installation OPERATING DOCUMENTATION 5680008 1EN Revision 2 ...

Page 2: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 2 ...

Page 3: ...作人员或患者造成电击机械伤害或其他形式的伤害警告 ZH HK 本服務手冊僅提供英文版本倘若客戶的服務供應商需要英文以外之服務手冊客戶有責任提供翻譯服務除非已參閱本服務手冊及明白其內容否則切勿嘗試維修設備不遵從本警告或會令服務供應商網絡供應商或病人受到觸電機械性或其他的危險警告 ZH TW 本維修手冊僅有英文版若客戶的維修廠商需要英文版以外的語言應由客戶自行提供翻譯服務請勿試圖維修本設備除非您已查閱並瞭解本維修手冊若未留意本警告可能導致維修廠商操作員或病患因觸電機械或其他危險而受傷 UPOZORENJE HR Ovaj servisni priručnik dostupan je na engleskom jeziku Ako davatelj usluge klijenta treba neki drugi jezik klijent je d...

Page 4: ...g ervan Probeer de apparatuur niet te onderhouden alvorens deze onderhoudshandleiding werd geraadpleegd en begrepen is Indien deze waarschuwing niet wordt opgevolgd zou het onderhoudspersoneel de operator of een patiënt gewond kunnen raken als gevolg van een elektrische schok mechanische of andere gevaren WARNING EN This service manual is available in English only If a customer s service provider ...

Page 5: ...Übersetzung zu sorgen Versuchen Sie nicht diese Anlage zu warten ohne diese Serviceanleitung gelesen und verstanden zu haben Wird diese Warnung nicht beachtet so kann es zu Verletzungen des Kundendienst technikers des Bedieners oder des Patienten durch Stromschläge mechanische oder sonstige Gefahren kommen ΠΡΟΕΙΔΟΠΟΙΗΣΗ EL Το παρόν εγχειρίδιο σέρβις διατίθεται μόνο στα αγγλικά Εάν ο τεχνικός σέρβι...

Page 6: ... al la manutenzione all operatore o ai pazienti provocate da scosse elettriche urti mec canici o altri rischi 警告 JA このサービスマニュアルには英語版しかありませんサービスを担当される業者が英語以外の言語を要求される場合翻訳作業はその業者の責任で行うものとさせていただきますこのサービスマニュアルを熟読し理解せずに装置のサービスを行わないでくださいこの警告に従わない場合サービスを担当される方操作員あるいは患者さんが感電や機械的又はその他の危険により負傷する可能性があります 경고 KO 본 서비스 매뉴얼은 영어로만 이용하실 수 있습니다 고객의 서비스 제공자가 영어 이외의 언어를 요구할 경우 번역 서비스를 제공하는 것은 고객의 책임입니다 본 서...

Page 7: ...a się z niniejszym podręczni kiem serwisowym i zrozumienia go Niezastosowanie się do tego ostrzeżenia może doprowadzić do obrażeń serwisan ta operatora lub pacjenta w wyniku porażenia prądem elektrycznym zagrożenia mechanicznego bądź innego ATENÇÃO PT BR Este manual de assistência técnica encontra se disponível unicamente em inglês Se outro serviço de assistência técnica solicitar a tradução deste...

Page 8: ... zahteva neki drugi jezik klijent je dužan da obezbedi prevodi lačke usluge Ne pokušavajte da opravite uređaj ako niste pročitali i razumeli ovo servisno uputst vo Zanemarivanje ovog upozorenja može dovesti do povređivanja servisera rukovaoca ili pacijenta usled strujnog udara ili mehaničkih i drugih opasnosti UPOZORNENIE SK Tento návod na obsluhu je k dispozícii len v angličtine Ak zákazníkov pos...

Page 9: ...stranke potrebuje priročnik v drugem jeziku mora stranka za gotoviti prevod Ne poskušajte servisirati opreme če tega priročnika niste v celoti prebrali in razu meli Če tega opozorila ne upoštevate se lahko zaradi električnega udara mehanskih ali drugih nevarnosti poškoduje ponudnik storitev operater ali bolnik DİKKAT TR Bu servis kılavuzunun sadece ingilizcesi mevcuttur Eğer müşteri teknisyeni bu ...

Page 10: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 This page left intentionally blank 10 Important Information ...

Page 11: ...the weight of ISC and Patient Table Update the dimension of Minimum Magnet Service Area Top review Update some dimensions in Table 2 1 System Minimum Room inside Clear Space Di mensions Correct some typing error SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Revision History 11 ...

Page 12: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 This page left intentionally blank 12 Revision History ...

Page 13: ... 29 6 MR Suite Magnetic Field Specifications 30 6 1 Magnet Fringe Field 30 6 2 Interference from Changing Magnetic Fields 33 6 3 Electrical Current 36 6 4 Non MR System Equipment Sensitivity to Magnetic Fields 37 6 5 Magnet Shield 38 7 Multiple MR System Requirements 40 7 1 Multiple Magnets 40 7 2 Shared Equipment Rooms 41 8 MR Suite Temperature and Humidity 42 8 1 Temperature and Humidity Require...

Page 14: ...l Limits 61 2 3 Vibration Requirements 62 3 Magnetic Shielded Room Requirements 64 4 Acoustic Room Specifications 65 5 RF Shielded Room Requirements 66 5 1 RF Shielded Room Purpose 66 5 2 RF Definitions 66 5 3 Customer Responsibilities 67 5 4 Requirements 68 5 4 1 RF Shield Requirements 68 5 4 2 RF Shield Test Report 69 5 4 3 Dock Frame Anchor Mounting Requirements 70 5 4 4 RF Shielding Integrity ...

Page 15: ...6 1 General 86 8 6 2 Vent Size 87 8 6 3 Vent Materials 87 8 6 4 Cryogen Vent Support 88 8 6 5 Construction 88 8 7 Vent Requirements Outside the Magnet Room 90 8 7 1 Cryogen Vent Support 90 8 7 2 Vent Construction 90 8 7 3 Vent Exit 91 8 8 Combined Vent 93 9 Magnet Room Electrical and Grounding Requirements 95 9 1 Electrical Line and Filter Requirements 95 9 2 Lighting Requirements 95 9 3 Grounding...

Page 16: ...c Patient Alert PA1 125 3 Oxygen Monitor OXY Option 126 Chapter 6 SYSTEM INTERCONNECTIONS 129 1 MR System Interconnects Specifications 129 1 1 Component Designator Definitions 129 1 2 Usable Cable Lengths 130 1 3 Long Short cable selection guidance 131 1 4 Magnetic Resonance Elastography MRE Option 132 2 MR System Interconnects Routing Requirements 133 2 1 General Requirements 133 2 2 Magnet Room ...

Page 17: ... Site Survey 157 3 3 RF Shielding Effectiveness SE and Ground Isolation Test Methods 158 3 3 1 Introduction 158 3 3 2 Test Set Up for RF Shielded Room 159 3 3 3 Shielding Effectiveness SE 159 3 3 4 Reference Level and Dynamic Range 159 3 3 5 Test Equipment 159 3 3 6 Test Frequency 160 3 3 7 Measurement Procedure 160 3 3 7 1 Shielding Effectiveness Measurement 161 3 3 7 2 Reference Level Measuremen...

Page 18: ...4 2 2 1 Wall Construction 168 4 2 2 2 High Bay RF Room 170 4 2 2 3 Miscellaneous Plumbing RF Windows and RF Doors 170 5 Sample Calculation AC Power Equipment Minimum Distance 172 6 Selecting Magnet Anchor Size 173 7 Magnet Cryogenic Venting Pressure Drop Reference Tables 175 SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 18 Table of Contents ...

Page 19: ...sponsible for compliance with all local and National codes and regulations 1 1 Document Purpose This pre installation manual provides the necessary information to prepare a site for system installation Specifically this manual provides information 1 To define system requirements and interactions 2 For the effective arrangement and interconnection of system components 1 2 Intended User The primary ...

Page 20: ...ements and specifications for the following 1 General System Requirements 2 Magnet Room 3 Equipment Room 4 Operator Room 5 System Interconnections SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 20 1 Pre Installation Manual Introduction ...

Page 21: ...nect Panel MDP GE Option or customer supplied 2 Integrated System Cabinet ISC 3 Integrated Cooling Cabinet ICC 4 Magnet Monitor MON 5 Optional Magnetic Resonance Elastography MRE 1 3 Control Room 1 Operator Workspace Equipment OW1 2 Pneumatic Patient Alert System PA1 3 Optional Oxygen Monitor OXY 1 4 Accessories 1 Patient accessories including phantoms cushions sponges straps and wedges 2 Gating a...

Page 22: ...Illustration 2 1 System Overview SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 22 1 System Components ...

Page 23: ...s cryogen venting patient observation requirements and penetration panel placements e g the Equipment room and Magnet room must share a common wall to allow penetration panel installation 3 Penetration panel closet and all associated areas must be outside the minimum finished room dimensions 4 Non GEHC equipment options such as additional AC or water cooling equipment in the Equipment room 5 Acces...

Page 24: ...gauss line to room If fringe field containment is needed see Chapter 3 Magnetic Shielded Room Requirement 4 Magnet Room minimum ceiling height is 98 5 in 2500mm when M7000GM 2 5m Ceiling Kit Passive is installed If suspended ceiling height is between 98 5 in 2500 mm and 105 in 2667 mm 2 5M Low Ceiling Kit Passive M7000GM is required Contact the PMI for preparation SIGNA Voyager Pre Installation Di...

Page 25: ...vice Area Top View NOTE 1 All dimensions are in inches bracketed dimensions are in millimeters 2 Shaded area indicates minimum service area SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 25 ...

Page 26: ...ew NOTE 1 All dimensions are in inches bracketed dimensions are in millimeters 2 Shaded area indicates floor to ceiling minimum height of 98 5 2500 SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 26 2 MR Suite Minimum Room Size Requirement ...

Page 27: ... connected to the public low voltage power supply network that supplies buildings used for domestic purposes Table 2 3 Guidance And Manufacturer s Declaration Electromagnetic Immunity The system is intended for use in the electromagnetic environment specified below The customer or the user of the system should assure that it is used in such an environment Immunity test IEC 60601 test level Complia...

Page 28: ... seismic requirements or specifications 1 The customer is responsible for seismic anchoring of GE components 2 Center of gravity weight physical dimensions and attachment points are provided for seismic calculations SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 28 4 MR Seismic Requirements ...

Page 29: ...tput Frequency Control Room 80dBA 20 to 20k Hz Equipment Room 80dBA 20 to 20k Hz Magnet Room Refer to Acoustic Background and Design Guidelines for guidance to contain the noise within the magnet room NOTE All GE equipment acoustic output values are for base equipment configuration in each room SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 29 ...

Page 30: ...e proximity to the MR generated magnetic field Earth s magnetic field about 0 5 gauss in strength and unidirectional Therefore these plots are only approximations of actual field intensities found at points surrounding the magnet These plots should be used as an aid in reviewing the location of MR and hospital equipment and services i e elevators vehicular traffic computer monitors etc Refer to Pr...

Page 31: ...Illustration 2 4 1 5 Tesla LCC RD Magnetic Isogauss Line Plot Top View SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 31 ...

Page 32: ...Illustration 2 5 1 5 Tesla LCC RD Magnetic Isogauss Line Plot Front View SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 32 6 MR Suite Magnetic Field Specifications ...

Page 33: ...g dipole type of field which cause image artifacts As an example a car driven inside the moving metal line will act as a dipole and produce a time varying field which change the magnet s main field during the imaging time The same vehicle may park within the moving metal line and remain parked during clinical scanning without impact to the main field See Illustration 2 7 and Illustration 2 8 SIGNA...

Page 34: ...et Moving Metal Sensitivity Line Plot Side View Illustration 2 8 Magnet Moving Metal Sensitivity Line Plot Top View SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 34 6 MR Suite Magnetic Field Specifications ...

Page 35: ...sed magnet location aligned along the Z axis Measure p p magnetic field change dc See Illustration 2 9 and see Example in Note 2 Notes 1 Radial distances are magnet X and Y axis Axial distances are magnet Z axis 2 EXAMPLE For Moving Metal Requirements of objects 400 lbs category you can use the time history of the occurrence to determine what milligauss level to use a If the site has elevators cou...

Page 36: ...ctrical Current 1 Electrical current in high voltage power lines transformers motors or generators near the magnet may affect magnetic field homogeneity SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 36 6 MR Suite Magnetic Field Specifications ...

Page 37: ...en single phase conductors or greatest separation between three phase conductors d X Minimum distance in meters from the feeder lines to isocenter of the magnet Illustration 2 10 Magnet Allowable Milligauss vs Line Frequency for AC Equipment Refer to Chapter 7 Sample Calculation AC Power Equipment Minimum Distance for additional examples 6 4 Non MR System Equipment Sensitivity to Magnetic Fields T...

Page 38: ...ss 0 5mT Cardiac pacemakers Biostimulation devices Neurostimulators 10 gauss 1mT Magnetic computer media Telephone switching stations Hard copy imagers Water cooling equipment Line printers HVAC equipment Video Cassette Recorder VCR Major mechanical equipment room Film processor Credit cards watches and clocks X ray tubes Large steel equipment including Emergency generators Air conditioning equipm...

Page 39: ...magnetic shielding Designing a magnetic shield requires a comprehensive computer analysis which predicts the effect the shield will have on the magnetic field as well as the effect of the shield on the homogeneity of the magnet The structural capacity of the site and space availability are important factors in the design of the shield The GE Healthcare MR Siting Shielding Group has the capability ...

Page 40: ...t not intersect or the magnets will be interactive Contact the GE Healthcare Project Manager of Installation PMI for any questions regarding magnetic field interaction Illustration 2 11 Two Magnet Installation SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 40 7 Multiple MR System Requirements ...

Page 41: ...s cabinet with RF amp must be separated from ISC by at least 79 in 2000 mm 2 The other system s Penetration panel must be separated from Penetration Wall of ISC by at least 118 in 3000 mm 3 Cables from different MR systems must not be routed together SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 41 ...

Page 42: ...oom Temperature Humidity Range F C Change F Hr C Hr 1 Range RH Change RH Hr2 Equipment Room at Inlet to Equip ment 59 89 6 15 32 3 5 3 30 75 5 Magnet Room 59 69 8 15 21 5 3 30 60 5 Operator Room 59 89 6 15 32 5 3 30 75 5 Notes 1 Operating temperature gradient limits shall be between 5 F Hr 3 C Hr and 5 F Hr 3 C Hr when averaged over 1 hour 2 Operating humidity gradient limits shall be between 5 RH...

Page 43: ...rage Idle Maxi mum Aver age Idle Magnet MAG and Patient Transport Table PT 8 189 2 400 4 095 1 200 1 915 561 Main Disconnect Panel MDP optional 901 264 450 132 450 132 Integrated System Cabinet ISC 24 232 7 100 7 270 2 130 955 280 Heat Exchanger Cabinet ICC 3 412 1 000 1 706 500 0 0 Cryocooler Compressor CRY 1 706 500 1 706 500 1 706 500 Magnet Monitor MON 205 60 205 60 205 60 Operator Workspace e...

Page 44: ...y Liquid Coolant Requirements Parameter Requirements Availability Continuous Antifreeze 0 40 propylene glycol Minimum Flow 13 2 gpm 50 L min Maximum Flow 21 1 gpm 80 L min Typical Flow 17 2 gpm 65 L min Maximum Pressure Drop in ICC at Mini mum Flow 26 1 psi 1 8 bar with 40 propylene glycol water 1021 kg m3 density Maximum Pressure Drop in ICC at Maxi mum Flow 49 3 psi 3 4 bar with 40 propylene gly...

Page 45: ...s 200 ppm Calcium Hardness 150 ppm Ionic Silica 50 ppm Iron 1 0 ppm Copper 0 3 ppm Sulfide Ion None not detectable Ammonium Ion 1 0 ppm Residual Chlorine 0 3 ppm Free Carbon Dioxide 4 0 ppm Stability Index 6 0 to 7 0 Suspended Matter 10 ppm Particle Size 100 micron with field changeable filter SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 45 ...

Page 46: ...Illustration 2 12 MR System Water Cooling Block Diagram SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 46 9 MR Coolant Requirements ...

Page 47: ...onnectors to supply the coolant to the ICC back up port for the CRY 2 The emergency coolant to Cryocooler Compressor must be drained to the facility through customer supplied 1 2 hose and must not back feed to the ICC 3 Coolant must meet all other ICC coolant requirements listed in and Table 2 11 4 The charts in Illustration 2 13 shows the coolant flow rate and temperature requirements for the Cry...

Page 48: ...Illustration 2 13 Cryocooler Water Cooling Requirements SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 48 9 MR Coolant Requirements ...

Page 49: ...der all line and load conditions This includes variation of power source and transmission losses up to the MDP Phase Input power to the MDP may use one of the following configurations A 3 phase solidly grounded WYE with Ground 4 wire system If a neutral wire exists it must be terminated prior to or inside the MDP A 3 phase floating DELTA with Ground 4 wire Do not connect a corner grounded DELTA so...

Page 50: ...tage values Phase 1 Maximum Amps 2 0 Table 2 13 System Power Demand Equipment Power Draw kVA ISC PDU Continuous Power 55 ISC PDU 5 Second Power 65 Cryo Compressor Continuous Power 9 Total System 5 Second Power 77 Total system Continuous Power 64 Standby Consumption no scan PDU CRY 17 Table 2 14 Power Consumption Power Consumption Sleep Mode 5 7kW Power Consumption Standby no scan 11 1kW Power Cons...

Page 51: ...Illustration 2 14 Main Disconnect Panel MDP Set Up SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 51 ...

Page 52: ...gency off circuit must be actuated by remotely located push button s see Illustration 2 14 c The wire size for the emergency off circuit is 12 22 AWG and is supplied by the customer d The manual reset must be required to restore power to the entire system e Two sets of isolated normally closed contacts that open when an emergency off button is actuated must be provided for optional accessories 4 L...

Page 53: ... blocks that can accept 3 0 AWG maximum size on the main 8 AWG maximum size on the 30A Customer Supplied Breaker for Cryocooler circuit and 1 or 2 AWG on the PDU in ISC NOTE 12 AWG Cable RUN E0009 will be connected between the 30A Customer Supplied Breaker and the Cryocooler h Isolated neutral terminal block for termination i Multiple ground terminal blocks as required by panel design j Listed and...

Page 54: ...the route will support the weight of the magnet GE Healthcare recommends a structural analysis b Doors or other openings are sufficiently wide to allow passage c Sufficient room is provided for any required rigging tools 11 2 Facility Delivery Route Requirements The following table lists the delivery dimensions of system components The delivery route must be planned to accommodate the dimensions l...

Page 55: ... 5 Pallet Integrated System Cabi net ISC 64 x 51 x 89 1620 x 1290 x 2250 2 665 1 209 Box Integrated Cooling Cabi net ICC 37 x 44 x 86 932 x 1118 x 2188 1069 485 Box SPT Phantom Set 34 x 32 5 x 60 864 x 826 x 1524 350 159 On cart casters with box cover Operator Workspace Cab inet 24 x 35 x 31 600 x 900 x 780 243 110 Wood pallet with cardboard cover Operator Workspace Dis play 27 x 33 x 27 686 x 838...

Page 56: ... x 1499 3194 1449 Initial Gradient Coil Assembly is ship ped installed in the Magnet Shipping installation cart is used to install re placement coil assembly only Gradient Coil Replacement Tool Kit Crate 30 x 86 x 30 762 x 2184 x 762 750 340 This crate box includes Gradient In sertion Kit Note The replacement Gradient Coil Assembly weight is approximately 2205 lbs 1000 kg the shipping cradle is 13...

Page 57: ...llustration 2 16 Gradient Coil Cart NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 2 General System Level 57 ...

Page 58: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 This page left intentionally blank 58 11 MR System Shipping and Receiving ...

Page 59: ...peration and it also prevents MR system RF radiation from interfering with external systems such as aircraft control Special care must be used when installing all fixtures penetrating the RF shield e g vents electrical conduit penetration panels to ensure the integrity of the RF shield is maintained 4 The Finished room includes the wall coverings ceiling tile ceiling grid other fixtures Magnet MAG...

Page 60: ...Illustration 3 1 Magnet Room Layers SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 60 1 Magnet Room Introduction ...

Page 61: ...ter Environmental steel within the static magnetic field affects the uniformity or homogeneity of the field Field uniformity is critical to image quality An analysis of the environmental steel is required within a 5 feet 1 524 meters spherical radius of the magnet isocenter Environmental steel includes ferrous pipes beams concrete rebar metal decking existing or proposed RF magnetic shielding or s...

Page 62: ...ted from vibration Any vibration issue must be resolved at the source 2 MR Suite HVAC must have vibration isolation 3 A vibration analysis must be performed at the proposed site with the results and any mitigation forwarded to the GE Healthcare Project Manager of Installation PMI See the Chapter 7 MR Site Vibration Test Guidelines 4 A transient vibration test must only be performed after a steady ...

Page 63: ...Illustration 3 2 Magnet Steady State Vibration Specifications SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 3 Magnet Room 63 ...

Page 64: ...gnetic shielding room location should be carefully considered not all sites require magnetic shielding See MR Suite Magnetic Field Specifications for detailed magnetic proximity limit information 1 The GE Healthcare Project Manager of Installation PMI works with the customer to coordinate the magnetic shielding site evaluation 2 If required the GE Healthcare Project Manager of Installation PMI coo...

Page 65: ...ergy SPL is derived through the log sum of each 1 3 band octave totaling the 127 dBA That is the maximum single 1 3 band is lower than the published values at both the isocenter and at the front of the magnet Illustration 3 3 Sound Pressure Spectral Distribution 1 3 Band Relative SPL NOTE The MR product clinical operation will generate sound pressure proportional to the specific clinical applicati...

Page 66: ...e Magnet room Potential sources of interference can be reduced by limiting static discharge ensuring all metal to metal contact is tight and secure and ensuring all electrical and grounding requirements are met Discrete Interference Discrete interference is fixed frequency narrowband RF noise Potential sources of discrete interference are radio station transmitters and mobile RF transmitting devic...

Page 67: ...RF shielded room vendor who understands the RF shielding room purpose described in Section 5 1 2 Contracting with a RF shielded room vendor to design and install including installation of dock anchor the RF shielded room to meet requirements in Section 5 4 3 Maintenance and repair of RF shielded room to include but not limited to shielding effectiveness SE door threshold and door seal pressure equ...

Page 68: ...mance of the RF shielded room is determined based on the lowest measurement of all test point locations 2 The minimum tests points for shielding effectiveness must be the following locations a Walls b Penetration panels c Doors d All windows including patient viewing window e Skylights f Penetration waveguides installed for GE Healthcare and Non GE Healthcare options g Power filters 3 Chapter 7 RF...

Page 69: ...ort must be prepared by the testing organization performing the shielding effectiveness and ground isolation resistance tests for the RF shielded room The test report includes data necessary for the evaluation of the shielding effectiveness performance and ground isolation of the RF shielded room The test report must contain as a minimum the following information 1 Name of the owner organization o...

Page 70: ...anchor hole locations 4 The dock frame anchor must not contact floor rebar or other structural steel 5 The dock frame anchor must electrically contact the RF shield at point of entry 6 The dock frame anchors must have the following properties a Anchors must be two part assembly male female b Female side must be expansion or epoxy type c Male side must be a bolt or threaded rod with appropriate siz...

Page 71: ...e provided to the GE Healthcare Project Manager of Installation PMI 8 The RF shield vendor must provide instructions for removal replacement of the table anchor without using a torque wrench Instructions must be given to the GE Healthcare Project Manager of Installation PMI 5 4 4 RF Shielding Integrity Reliability Requirements 1 Ensure all joints and mechanical connections remain secure a All sold...

Page 72: ...eptacles must be metallic 6 2 Penetration Wall Closet An enclosure i e PEN closet must be provided to restrict access to the PEN panels and for storage of excess interconnections The ISC and ICC Pen Panels may be enclosed by Single Closet ISC ICC side by side or separate closets 1 The PEN closet must meet the minimum PEN Wall closet outline shown in Chapter 4 ISC and ICC Wall Opening Requirements ...

Page 73: ...though other means e g camera and video display may be used as long as all IEC requirements are met 6 4 Finished Ceiling 1 The customer is responsible for the finished ceiling 2 Refer to Room Layouts for the area of minimum ceiling height in the Magnet Room 3 Finished ceiling grid must be non magnetic 4 An optional cable concealment kit is available a Ceiling preparation should be completed prior ...

Page 74: ... Concealment Kit Ceiling Opening Dimensions Top View NOTE Dimensions are shown in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 74 6 Finished Room Requirements ...

Page 75: ...pplied supporting frame wider than Concealment cover frame fasten area is required for Concealment Cover frame installation If the cover frame is suspended by the four rods only it will be bent by the cover weight Illustration 3 6 Cable Concealment Kit Frame Fasten Area Dimensions with example of Customer supplied Support Frame NOTE Dimensions are shown in inches Bracketed dimensions are in millim...

Page 76: ...closure and Patient Table areas shown below must be flat and level to 0 125 in 3 mm between high and low spots over the area shown in Illustration 3 7 5 The VibroAccoustic Dampening kit uses 15 4 in x 19 5 in 390 mm x 495 mm for each pad to calculate floor loading 6 RF shield seams joints or overlaps must not be located under the VibroAcoustic mats Illustration 3 7 Magnet Room Floor Levelness Area...

Page 77: ...oAcoustic Mats Locations of Magnet Mounting is defind from Magnet Geometric iso center See Illustration 3 8 Illustration 3 8 Positioning SV VibroAcoustic Mats SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 3 Magnet Room 77 ...

Page 78: ...ll be used for Magnet alignment Drawing of line is required before Magnet Installation under the PMI s responsibility Illustration 3 9 Magnet positioning line and Dock Frame anchor position Detail NOTE All dimensions are in inches bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 78 6 Finished Room Requirements ...

Page 79: ...nclosure MAG Weight 11 800 lbs 5320 kg with cryogens Illustration 3 10 Magnet Enclosure Dimensions NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 3 Magnet Room 79 ...

Page 80: ...ht 572 lbs 259 5 kg Illustration 3 11 Patient Table NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 80 7 Magnet Room Equipment Specification ...

Page 81: ...ity contractor 5 The MRU requires the following facility supplied power Table 3 3 MRU Facility Power Requirements Parameter Requirements Voltage Frequency 100 120 VAC 50 60 Hz 200 220 VAC 50 60 Hz Phase 1 Maximum Amps 1 0 Connection type Hard wired permanently wired directly to facility power no plugs or connectors allowed 1 2 in PVC Schedule 40 Conduit recommended Availability Continuous Circuit ...

Page 82: ...Illustration 3 12 Magnet Rundown Unit MRU SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 82 7 Magnet Room Equipment Specification ...

Page 83: ...e magnet cryogenic vent at the highest point on the finished or drop ceiling 5 Any space between finished ceiling and the RF ceiling must contain an additional exhaust intake vent to prevent helium from pooling above the finished ceiling 6 If there is no space between the RF ceiling and finished ceiling the intake vent may be located on a side wall must be on the coldhead side of the magnet near t...

Page 84: ...xygen monitor the Magnet room switch is not required 11 All system components must be accessible for customer inspection cleaning and maintenance 12 Electromechanical fire dampers must not be used Fusible link fire dampers may be used with annual inspection Illustration 3 13 Magnet Room Exhaust Fan Schematic SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 84 8 Magnet Room Venting R...

Page 85: ...d into occupied areas NOTE Location may affect acoustic noise transmission into occupied spaces 8 5 Cryogenic Venting WARNING CRYOGENIC BURNS OR ASPHYXIATION FAILURE OF THE CRYOGENIC VENT MAY CAUSE EXTREMELY COLD HELIUM GAS TO ENTER THE MAGNET ROOM OR OTHER OCCUPIED BUILDING SPACE DIRECT CONTACT COULD CAUSE CRYOGENIC BURNS AND ASPHYXIATION COULD RESULT FROM OXYGEN DISPLACEMENT THE CUSTOMER IS RESP...

Page 86: ...nside the Magnet room a The cryogenic vent must be connected to the magnet within 24 hours of magnet delivery b Appropriate ventilation must be provided to evacuate the helium gas in the case of a quench before the magnet is connected to the cryogenic vent See Section 8 3 2 The cryogenic vent must not transfer load to the magnet adaptor 3 GE Healthcare provides a flanged vent adapter that is 8 in ...

Page 87: ...uide must be included in the overall calculation Refer to Magnet Cryogenic Venting Pressure Drop Reference Tables 8 6 3 Vent Materials 1 The 8 in 203 mm OD vent material must be one of the following materials with the wall thickness indicated a SS 304 Minimum 0 035 in 0 89 mm Maximum 0 125 in 3 18 mm b AL 6061 T6 Minimum 0 083 in 2 11 mm Maximum 0 125 in 3 18 mm SIGNA Voyager Pre Installation Dire...

Page 88: ...n in the vent system is required in the Magnet room a Gap between the RF waveguide and GEHC supplied vent tube must be 1 0 0 25 inch 25 4 6 mm b The outside diameter of the waveguide must match the outside diameter of the GE vent tube within 0 125 in 3 mm c The Ventglas connection inside the scan room must be accessible for maintenance and annual inspection d The distance between the bottom of the...

Page 89: ...Illustration 3 16 Waveguide Illustration 3 17 Pipe Supports to Remove Vent Load from Ventglas Connection SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 3 Magnet Room 89 ...

Page 90: ...s must be provided for temperature decrease from ambient to 4 5 K 451 F or 268 C 4 A dielectric break must be installed adjacent to the waveguide a The dielectric break gap must be 1 0 0 25 inch 25 6 mm b A customer supplied clamp may be used to connect the dielectric break c The dielectric break must be accessible for inspection or maintenance 5 All components must be rated to withstand the heliu...

Page 91: ...area in front of the vent 20 feet 6 1 m long by 15 feet 4 6 meters wide Illustration 3 19 a The facility is responsible for any exhaust area barriers restrictions and warning signs b Must not include air intake vents to prevent cryogen exhaust from reentering the facility c Must not include any personnel building components or objects movable or stationary 2 For a rooftop exit a Use either a horiz...

Page 92: ...ated for the helium reaction force a 90 elbow or vent cap with no restriction in gas flow b The exhaust exit must be at least 12 feet 3 66 meters above the ground c The outlet must be covered with a 0 5 inch 12 7 mm square screen mesh d The vent exit must be covered to prevent foreign material from entering or blocking the opening e g louvers etc e The exhaust vent exit must be included in the pre...

Page 93: ... including the vent exit must be less than 17 psi 117 2 kPa 2 The pressure drop in the shared section of the vent must not exceed 4 psig 3 The combined vent pipe diameter selected to maintain the pressure drop will require the combined pipe section diameter meet the back pressure and 35 psi internal pressure forces 4 The two magnet vents require a plate separating the entering pipes to prevent one...

Page 94: ...ard 90 degree elbow shall be added to each magnet branch due to the entrance effect to the common pipe section 4 Use the hydraulic diameter instead of pipe diameter when calculating the pressure drop after a magnet branch ties in to common vent pipe until it leaves the edge of the splitter plate yellow dashed lines in figure 5 For a circular cross section of diameter D1 with the divider of height ...

Page 95: ...t lighting must not be used in the Magnet Room 6 Lighting must be adjusted using a discrete switch or a variable DC lighting controller 7 SCR dimmers or rheostats must not be used 8 DC LED lighting may be used if the DC power converter is located outside the Magnet Room RF Shield 9 Battery chargers e g used for emergency lighting must be located outside the Magnet Room 10 Short filament length bul...

Page 96: ...Vent and floor drains must be located within 56 inches 1422 mm of the RF Common Ground Stud 7 The illustration below shows a typical ground layout Illustration 3 22 Typical Magnet Room Grounding SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 96 9 Magnet Room Electrical and Grounding Requirements ...

Page 97: ...n in this layout Please also consider the MDP service area described in Main Disconnect Panel MDP Option if applied 3 If GE MDP is installed 30A Breaker is also required which is not shown in layout illustration Refer to MR Suite Electrical Requirements for 30A Breaker details 4 Regarding a in illustration above 11 8inch 300mm side space is for excess cable storage Left side space 5 9 150 and righ...

Page 98: ...ted System Cabinet ISC 2 Integrated Cooling Cabinet ICC 3 Magnet Monitor MON 4 Main Disconnect Panel MDP 5 Optional Magnetic Resonance Elastography MRE SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 98 1 Equipment Room Overview ...

Page 99: ...557 lbs 1160kg Magnetic Field Limit 50 gauss 5mT Penetration Panel side Illustration 4 2 Integrated System Cabinet ISC NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 99 ...

Page 100: ...Illustration 4 3 ISC Anchor Location For Seismic Area Front View of ISC Base Cover SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 100 2 Equipment room hardware components ...

Page 101: ...chor Location For Seismic Area Right View of ISC Base Cover NOTE The right view of ISC anchor locations is symmetry of the left side SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 101 ...

Page 102: ...out F 50 Cryocooler Compressor is 770 lbs 349kg Magnetic Field Limit 50 gauss 5mT Penetration Panel side Illustration 4 5 Integrated Cooling Cabinet ICC NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 102 2 Equipment room hardware components ...

Page 103: ...Illustration 4 6 ICC Anchor Location For Seismic Area Front View of ICC Base Cover SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 103 ...

Page 104: ... Location For Seismic Area Right View of ICC Base Cover NOTE The right view of ICC Anchor Location is symmetry of left side SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 104 2 Equipment room hardware components ...

Page 105: ...h in the Global Operator Cabinet GOC 3 The Magnet Monitor requires a 110 220 VAC 50 60 Hz 2 0 A facility supplied outlet Power at the outlet must be continuously available 2 3 2 Specifications 1 Mounting location On the wall near the Cryocooler Compressors 2 Weight 10 lbs 4 5 kg 3 Maximum gauss limit 200 gauss 20 mT 4 Power cord length 72 in 1829 mm SIGNA Voyager Pre Installation Direction 5680008...

Page 106: ...Illustration 4 8 Magnet Monitor MON SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 106 2 Equipment room hardware components ...

Page 107: ...onnect Panel MDP Option 1 Weight 130 lbs 59 kg 2 Magnetic Field Limit 50 Gauss 5 mT Illustration 4 9 Main Disconnect Panel SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 107 ...

Page 108: ...c Resonance Elastography MRE Option 3 The MRE Resoundant Acoustic Driver module requires a 110 220 VAC 50 60 Hz 2 0 A facility supplied outlet Power at the outlet must be continuously available 2 5 2 Specifications 1 Weight 53 4 lbs 24 22 kg 2 Gauss Limit 50 gauss 3 Power Cord Length 60 Hz 240 in 6096 mm 50 Hz 300 in 7620 mm Illustration 4 10 Magnetic Resonance Elastography MRE Resoundant Acoustic...

Page 109: ... 5mm in Cabinet installation area 3 Do not place the carpet under the cabinets Illustration 4 11 Area to be leveled NOTE Dimensions are in inches Bracketed dimensions are in millimeters 4 Floor level at Cabinet Rear side near wall must be equal or slightly higher than floor level of Cabinet Front side 0 θ 0 5 deg Illustration 4 12 Slope Specification SIGNA Voyager Pre Installation Direction 568000...

Page 110: ... slope is down to the center from both side like V shape the slope specification is 0 25 deg Illustration 4 13 In case the gap in between ISC and ICC is 15mm SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 110 3 ISC and ICC Construction Requirements ...

Page 111: ...vicing Distance between RF Shield from Magnet Room and ISC ICC Pen Wall per Mesh Shield flexibility Illustration 4 14 Minimum top area and Mesh Shield Specification NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 111 ...

Page 112: ...tance test must be conducted with vendor supplied blank panel installed over the openings and the same mounting hardware to be used with the GE Penetration Panel and Mesh Shield Tunnel It is the facility s responsibility to ensure that the RF Shielded Room Vendor testing meets the attenuation specifications listed in Chapter 3 RF Shield Room Requirement Special Consideration for ISC refer to Equip...

Page 113: ...llustration 4 15 Wall Opening Detail Equipment Room Side NOTE 1 Dimensions are in inches Bracketed dimensions are in millimeters 2 Dimensions are measured from the Equipment Room floor not from the Magnet Room floor 3 If the gap of opening is 6 14 156mm the gap of ISC and ICC will be 0 6 15mm SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 113 ...

Page 114: ... Shield plane appears as shown in Illustration 4 19 Illustration 4 20 and Illustration 4 21 Illustration 4 16 Mesh Shield Frame area Magnet Room Side NOTICE Do not measure the distance A from Magnet Room Floor Measure the distance from Equipment Floor See Illustration 4 15 NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Rev...

Page 115: ... Magnet Room side Mesh shield fringe attachment area of RF shield must be prepared at Magnet Room side Illustration 4 17 Mesh shield Attachment Note SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 115 ...

Page 116: ...or ISC and 110 pieces for ICC Mesh Shields will be installed during System Installation by RF Vendor For Wooden RF Shield Wall M5 Wood Screws 230 pieces For RF Shield Wall which has holes for screws M5 screws 230 pieces and M5 Nuts 230 pieces Illustration 4 18 Screw Information Of Mesh Shields Magnet Room Side NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre ...

Page 117: ...ssible and removable Illustration 4 19 Minimum PEN Wall Closet Outline NOTE Dimensions are in inches Bracketed dimensions are in millimeters 1 Minimum closet inner dimensions outline 2 RF Shield 3 Pen Wall Covers are fixed to mesh shield by GE supplied screws 4 11 8in 300mm side space is for excess cable storage Left side space and right side space 11 8 300 can be swapped SIGNA Voyager Pre Install...

Page 118: ...le and removable Illustration 4 20 Minimum ISC PEN Wall Closet Outline NOTE Dimensions are in inches Bracketed dimensions are in millimeters 1 Minimum closet inner dimensions outline 2 RF Shield 3 Pen Wall Covers are fixed to mesh shield by GE supplied screws 4 11 8inch 300mm side space is for excess cable storage Left side space 5 9 150 and right side space 11 8 300 can be swapped SIGNA Voyager P...

Page 119: ...imum closet inner dimensions outline 2 RF Shield 3 Pen Wall Covers are fixed to mesh shield by GE supplied screws 4 11 8inch 300mm side space is for excess cable storage Left side space 5 9 150 and right side space 11 8 300 can be swapped SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 4 Equipment Room 119 ...

Page 120: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 This page left intentionally blank 120 4 ISC and ICC Wall Opening Requirements ...

Page 121: ... Workspace OW1 Illustration 5 1 Operator Workspace OW1 Overall Dimensions NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 5 Operator Room 121 ...

Page 122: ...5 7 Kg Magnetic Field Limit 50 gauss 5mT Illustration 5 2 GOC Computer Cabinet OW1 A2 NOTE Dimensions are in inches Bracketed dimensions are in millimeters SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 122 1 Operator Workspace OW1 ...

Page 123: ...ith stand 19 8 lbs 9 Kg Weight without stand 13 2 lbs 6 Kg Magnetic Field Limit 50 gauss 5mT Illustration 5 3 Operator Workspace Components Position on Table Top Host LCD SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 5 Operator Room 123 ...

Page 124: ...Illustration 5 4 Operator Worspace Components Position on Table Top Keyboard SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 124 1 Operator Workspace OW1 ...

Page 125: ...nt Alert PA1 Weight 0 5 lbs 0 2 Kg Magnetic Field Limit 100 gauss 10mT Illustration 5 5 Pneumatic Patient Alert Control Box PA1 SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 5 Operator Room 125 ...

Page 126: ...ensor Module in the Magnet Room 1 Oxygen Monitor Weight 8 lbs 3 6 kg 2 Oxygen Sensor Module Weight 2 lbs 0 9 kg 3 Magnetic Field Limit 50 gauss 5mT 4 The Oxygen Monitor requires facility supplied power Table 5 1 Oxygen Monitor Facility Power Requirements Parameter Requirements Voltage Frequency 100 240 VAC 50 60 Hz Phase 1 Maximum Amps 0 9 Connection type Hard wired in unit SIGNA Voyager Pre Insta...

Page 127: ...Illustration 5 6 Oxygen Monitor and Remote Sensor SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 5 Operator Room 127 ...

Page 128: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 This page left intentionally blank 128 3 Oxygen Monitor OXY Option ...

Page 129: ...n Disconnect Panel MAG Magnet and Enclosure all magnet enclosure components in Magnet Room Modem Modem for Magnet Monitor MON Magnet Monitor MRU Magnet Rundown Unit OW Operator Workstation PA1 Pneumatic Patient Alert Control Box PDU Power Distribution Unit PDU is a module in the ISC cabinet ISC Integrated System Cabinet ICC Integrated Cooling Cabinet PT Patient Transport Table DS DS1 Door Switch T...

Page 130: ...e Option Short Site Option Long in mm Equipment Room CRY Magnet Monitor 370 1 9400 Magnet Monitor ICC 661 4 16800 ISC top panel Magnet Monitor 645 7 16400 ISC top panel GOC rear panel 97 5 25000 ICC top panel GOC rear panel 97 5 25000 ISC top panel ICC top panel 15 7 400 252 6400 ISC top panel Magnet room door switch 960 6 24400 ICC Pen Panel E off switch Control room or Equipment room 661 4 16800...

Page 131: ... Distance is less than 17 7 feet 5 4 m select short cable If the Magnet ISC Distance is in between 17 7 feet 5 4 m and 30 8 feet 9 4 m select long cable Equipment Room Cable If the ICC ISC Distance is less than 1 3 feet 0 4 m select short cable If the ICC ISC Distance is in between 1 3 feet 0 4 m and 21 feet 6 4m select long cable Illustration 6 1 Distance for cable selection SIGNA Voyager Pre Ins...

Page 132: ... in mm 1 in 2 54 mm Tubing Resoundant Active Driver Magnet Isoceter Nominal 288 7315 Maximum 396 10058 BNC Resoundant Active Driver ISC Cabinet J6 600 15 240 Ethernet Resoundant Active Driver Ethernet Hub in ISC 600 15 240 Power Resoundant Active Driver Customer Sup plied Outlet 60 Hz 240 6096 50 Hz 300 7620 SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 132 1 MR System Interconne...

Page 133: ...f the cable support and require a minimum of 10 in 254 mm from the top of the tray For example see item E in Illustration 6 5 If this is not possible due to obstructions see the exceptions below Exceptions for Obstructions 1 The top of the cable tray must not touch an obstruction A minimum of 10 in 254 mm of clearance is required on either side of the obstruction See item A in Illustration 6 2 2 A...

Page 134: ...r support see Illustration 6 3 5 Each cable tray must support a weight of at least 50 lbs ft 74 8 kg m NOTE If stacked each cable tray must support the weight of both cable trays i e 100 lbs ft 149 6 kg m 6 Ceiling grid work medical gas lines lighting fixtures etc must not touch MR system cabling or cable supports 7 Excess cable length in the Magnet room must be stored in either a Penetration Pane...

Page 135: ...s Group e Air water and cryogen lines Illustration 6 3 Cable Groupings 2 2 2 Cable Tray Requirements and Examples 1 The gradient cable support must end at the back of the magnet 49 0 5 in 1245 12 mm from geometric isocenter See item A in Illustration 6 4 Illustration 6 5 and Illustration 6 6 2 Supports for all other cables and hoses must end at the back of the magnet 34 0 5 in 864 12 mm from geome...

Page 136: ...Illustration 6 4 Cable Tray Requirements Side By Side SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 136 2 MR System Interconnects Routing Requirements ...

Page 137: ...Illustration 6 5 Cable Tray Requirements Stacked SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 6 System Interconnections 137 ...

Page 138: ... must be above minimum ceiling height 15 7 in 400 mm above the ISC cabinet 4 Excess cable length must be stored in the Equipment room 5 For multiple MR system installations cables from different MR systems must not share the same cable support 6 The table below lists the minimum width for cable trays between Equipment Room and Operator Workspace components SIGNA Voyager Pre Installation Direction ...

Page 139: ...OW ISC 18 in 450 mm Electrical Water 12 in 300 mm Electrical NOTE Local Contractor to determine final size support needed to support cables SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 6 System Interconnections 139 ...

Page 140: ... ISC MAG 15 140 10 39 12 NA 15 22 UL2464 300 80 M5003 Harness 2018 2019 M3532 M3533 M3534 2018 ISC DM Body Coil 19 000 5 0 14 5 15 0 19 20 RG58 U DC30V 80 2019 ISC DM Body Coil 19 000 5 0 14 5 15 0 19 20 RG58 U DC30V 80 M3534 ISC DM Hybrid 16 000 5 0 14 5 15 0 19 20 RG58 U DC30V 80 M3532 ISC DM Body Coil 15 000 5 0 14 5 15 0 19 20 RG58 U DC30V 80 M3533 ISC DM Body Coil 15 000 5 0 14 5 15 0 19 20 R...

Page 141: ... of UL ap proved SRDK 40 8 300 90 1266 ICC Remote MRU 2 540 4 93 32 14 49 3 4 22 CMG FT4 AWM209 4 300 75 1501 ICC OM1 30 480 7 747 31 19 152 4 9 22 CL3 FT4 300 80 1502 ICC OM2 27 432 7 747 30 8 152 4 9 22 CL3 FT4 300 80 M3030 ICC E OFF 30 000 8 30 8 NA 9 22 UL2464 300 80 E3030 ICC E OFF 17 000 5 30 8 NA 9 22 UL2464 300 80 1265 ICC MRU 2 540 4 93 32 14 49 3 4 22 CMG FT4 AWM209 4 300 75 E5001 Harnes...

Page 142: ... 80 M3314 ISC MAG IRD 19 400 17 500 8 10 39 12 NA 9 15 22 UL2464 300 80 M1500 ISC MAG 14 500 14 99 32 0 152 4 1 6 FT4 DC4000 V 40 85 M3317 ISC MAG Long 12 700 Short 8 700 35 5 23 NA 2 1 UL2501 600 105 M3318 ISC MAG Long 12 700 Short 8 700 35 5 23 NA 2 1 UL2501 600 105 M3319 ISC MAG Long 12 700 Short 8 700 35 5 23 NA 2 1 UL2501 600 105 M1504 ISC MAG 18 500 10 29 20 57 101 6 1 10 FT4 DC2500 V 40 85 ...

Page 143: ...0 105 E3040 ISC ICC 4 500 12 7 53 035 NA 25 20 UL2464 300 80 E0010 ISC ICC 5 000 5 5 43 09 NA 5 22 UL2464 300 80 E0007 ISC ICC 4 000 16 5 12 NA 5 10 UL2501 600 105 SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 6 System Interconnections 143 ...

Page 144: ...oling Water ICC Cooling Water Return C04 Facility Network MON Facility must provide network tele phone access for the Magnet Moni tor MON and Global Operator Cabinet GOC The MON connec tion must be available at all times Magnet Monitor MON Re quirements and Specifica tions Facility Network GOC C05 MDP E Off Switch Facility must supply cable from MDP to E Off Switch in Equipment Room MR Suite Elect...

Page 145: ...es on all RF shielded doors These switches must be wired in series and a GE supplied cable two loose lead conductors will attach to one door switch RF Switches must be rated for 10V DC maximum and the switches must be in the open position when the doors are open switch contacts close when the doors are completely closed SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 6 Syst...

Page 146: ...SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 This page left intentionally blank 146 4 Facility Supplied System Interconnects Specifications ...

Page 147: ...ns are posted outside the five gauss line alerting personnel of this requirement Since the magnetic field is three dimensional signs are also posted on floors above and below the Magnet Room in which the five gauss line exists Ferrous Material Any substance containing iron which is strongly attracted by a magnetic field Gauss G A unit of magnetic flux density The earth s magnetic field strength is...

Page 148: ...onance systems is 5 130 Mhz Radio Frequency Shielding Using material e g copper aluminium or steel to reduce interference from external radio frequencies A radio frequency shielded room usually encloses the entire magnet room Resonance A large amplitude vibration caused by a relative small periodic stimulus of the same or nearly the same period as the natural vibration period of the system In magn...

Page 149: ...e essentially disappears at temperatures near zero Kelvin A commonly used superconductor in magnetic resonance imaging system magnets is niobium titanium embedded in a copper matrix Tesla The internationally accepted unit of magnetic flux density One tesla is equal to 10 000 gauss One milli Tesla is equal to 10 gauss SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 7 Appendi...

Page 150: ...o confirm that transient activity exceeds the trigger level then expand the time history data to exhibit the structural response Table 7 1 Frequency Bands for FFT Frequency Band Frequency Resolution 0 2 to 50 Hz Δf 0 125 Hz 2 2 Equipment Spectral Analyzer Set Up 1 Frequency average should be a minimum of 20 linear averages Do not use peak hold or 1 3 octave analysis 2 Average and store should be a...

Page 151: ...nsient vibration must be identified and supported with vibration plots If the source of any transient vibration is not locatable it is recommended that the customer have an alternate location identified and the vibration studied 3 Transient vibration can be difficult to assess if the details are not understood The 0 0005g zero to peak trigger level is a starting point to understanding the vibratio...

Page 152: ...f that site meets GE Healthcare specifications 4 If the vibration levels are too high additional data acquisition may be necessary to a Determine the source of the vibration b Propose a solution to the problem c Find an alternate site location 5 Any questions regarding test equipment requirements test parameters or general questions should be discussed with the GE Healthcare Project Manager of Ins...

Page 153: ...Illustration 7 1 Example of Site Environmental Vibration Levels SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 7 Appendix 153 ...

Page 154: ...Illustration 7 2 Example Site Environmental Vibration SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 154 2 MR Site Vibration Test Guidelines ...

Page 155: ...Illustration 7 3 Acceleration Time History SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 Chapter 7 Appendix 155 ...

Page 156: ...Illustration 7 4 Acceleration Time History Zoomed In on Transient Event SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 156 2 MR Site Vibration Test Guidelines ...

Page 157: ...nd held RF transmitting devices in general any intended RF transmitter or non intended transmitters but with clocked digital electronic circuits 3 2 2 Broadband RF Interference Broadband RF noise is a single transient or continuous series of transient disturbances caused by an electrical discharge Low humidity environmental conditions will have higher probability of electrical discharge The electr...

Page 158: ...ths and exceed the 100 millivolt per meter limit adjust the resolution of the test equipment spectrum analyzer according to the equation BW resolution f0 50 where BW Bandwidth resolution f0 Center frequency for 1H at 1 5 Tesla 63 86 MHz 3 3 RF Shielding Effectiveness SE and Ground Isolation Test Methods The shielding effectiveness test method defined within this appendix is in accordance with meth...

Page 159: ...quipment with the receiving antenna located at a prescribed distance from the transmit antenna and located outside of the shielded enclosure 2 The dynamic range DR is the range of amplitudes over which the receive system operates linearly The dynamic range must be at least 6 dB greater than the SE to be measured For SE measurement the dynamic range is the difference of the reference level to the n...

Page 160: ...ncies for shielding effectiveness SE measurement are defined in Chapter 3 RF Shielded Room Requirements Test frequencies used must be noted in the RF shield test report 3 3 7 Measurement Procedure NOTE Except when specified antenna distances are measured at the center of the antenna 1 Each wall of the RF shielded room that is accessible for the measurement will be tested For areas that are inacces...

Page 161: ...Measurement Three main steps are required to complete the Shielding Effectiveness measurement at each test position 1 Take reference level measurement Section 3 3 7 2 2 Take attenuated level measurement Section 3 3 7 3 3 Calculate Shielding Effectiveness Section 3 3 7 4 3 3 7 2 Reference Level Measurement 1 The reference level is the value of signal measured by the receiver equipment with the rece...

Page 162: ...place of the receive antenna and verifying that any signal present is at least 10 dB below the reference reading 6 Reference Level measurement is taken at each test location with antenna at both polarizations horizontal and vertical a Reference Level at Horizontal Polarization i The reference level measurement is taken over a plane area covered as described below ii With horizontal polarization fo...

Page 163: ...Measurement is the same as the power used to determine the Reference Level 3 If an attenuator was used in the Reference measurement it would be taken out for the shielded Room measurement and the attenuator value added to the SE in the datasheet 4 Measurement setup for the attenuated level is in accordance with the illustration below Illustration 7 7 Attenuation Level Measurement 5 Attenuated Leve...

Page 164: ...ined in Equation 1 SE db VRef_max VAtt_max or SE db PRef_max PAtt_max Where SE Shielding Effectiveness in dB VRef_max VAtt_max Reference measurement in dBuV PRef_max PAtt_max Reference measurement in dBm 3 3 8 RF shielded Room Ground Isolation Resistance Measurement Method WARNING ELECTRICAL SHOCK HAZARD THE RF SHIELDED ROOM MUST BE PROPERLY GROUNDED 1 This section does not apply to upgrades 2 Thi...

Page 165: ...s pertinent to the test setup or SE results e g limited separation distance of antennas limited access to test points etc 10 Ground isolation test results and the condition of the room when tested e g RF room completed without internal finishes and no electrical connections 11 Pass Fail conclusion 12 The following information for each piece of all calibrated equipment used for measurement a Manufa...

Page 166: ...f Test set up for attenuated level measurement SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 166 3 RF Shielding Effectiveness and Ground Isolation Testing ...

Page 167: ...an transmit across distances of significant length Examples of airborne acoustics issues may include the following not limited to only these MR Operator exposure at Operator Workstation i e Operator viewing in line with the patient inside the magnet may require a higher acoustic attenuation window Image reading rooms adjacent to Magnet Room may be separated by hallways Secretarial offices meeting ...

Page 168: ...te 4 2 2 Inter Spacial Areas Acoustic Noise Control to mitigate noise from being transmitted to other spaces often amounts to paying attention to small details while working with ordinary construction materials The key objectives are to eliminate all cracks and gaps in the wall construction while making sure that the doors walls floor and ceiling have adequate transmission loss via mass or special...

Page 169: ...used on the ceiling floor above then flute seals would be used to seal the gaps between the drywall and the pan Alternately drywall can be cut out to fit into the flutes Acoustical caulking non hardening will be used to seal the remaining cracks and gaps Illustration 7 8 Example Of Wall Construction For Airborne Noise Control Option 1 SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2...

Page 170: ...l with two layers of drywall on each side total of 4 layers with fiberglass batt in the cavity Penetrations should be avoided via the use of surface mounted lights HVAC and ducts passing through the ceiling party wall or side walls would require acoustic noise attenuation in the form of inline silencers Gaps and cracks would be sealed between the ceiling party wall or vertical side walls and the c...

Page 171: ...n STC 50 to 60 to quell the noise Contact RF Shield Room supplier for selection of RF doors that meet the local acoustic codes and site acoustic requirements RF door seals must be selected to prevent small gaps around the door perimeter and at the door threshold RF door seals would either require periodic replacement or a door seal that would last the life of the Magnet Room SIGNA Voyager Pre Inst...

Page 172: ...rs or greatest separation between three phase con ductors Note that the separation S is the spacing between the conductors and when all 3 conductors are run in a single conduit S is simply the diameter of the conduit S 5 inches 0 127 meters The conduit should be 1 7 meters or 5 4 feet from the magnet isocenter In other situations the spacing S may be the spacing between HV feeders the distance bet...

Page 173: ...the clamping force tension determined in Step 1 Diameter Min 0 625 inch Max 1 25 inch For 8 inch embedment select 3 4 inch diameter For 4 5 inch embedment select 1 inch diameter or Diameter Min M16 Max M32 For 130 mm embedment select M20 diameter For 114 mm embedment select M24 diameter 3 The vendor instructions and torque to the maximum recommended level for the anchor selected in Step 2 must be ...

Page 174: ...Illustration 7 11 Allowable Anchor Loads in Concrete Metric Units SIGNA Voyager Pre Installation Direction 5680008 1EN Revision 2 174 6 Selecting Magnet Anchor Size ...

Page 175: ... 62 1 71 11 79 12 in 300 mm 0 20 0 6 1 0 013 0 29 0 27 1 86 0 41 2 83 0 14 0 97 0 21 1 45 20 40 6 1 12 2 0 027 0 61 0 41 2 83 0 82 5 65 0 21 1 45 0 41 2 83 40 60 12 2 18 3 0 041 0 93 0 55 3 79 1 10 7 58 0 27 1 86 0 55 3 79 60 80 18 3 24 4 0 054 1 22 0 69 4 76 1 37 9 45 0 34 2 34 0 69 4 76 80 100 24 4 30 5 0 069 1 56 0 96 6 62 1 51 10 41 0 48 3 31 0 75 5 17 100 120 30 5 36 6 0 08 1 81 1 09 7 52 1 7...

Page 176: ...5 86 0 270 1 86 0 421 2 90 100 120 30 5 36 6 0 038 0 26 0 613 4 23 0 995 6 86 0 310 2 14 0 490 3 38 120 140 36 6 42 7 0 048 0 33 0 714 4 92 1 16 8 00 0 352 2 43 0 581 4 01 140 160 42 7 48 8 0 052 0 36 0 803 5 54 1 32 9 10 0 398 2 74 0 666 4 59 160 180 48 8 54 9 0 058 0 40 0 903 6 23 1 42 9 79 0 451 3 11 0 712 4 91 180 200 54 9 60 1 0 084 0 56 0 987 6 81 1 64 11 31 0 490 3 38 0 826 5 70 Notes 1 Elb...

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