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Miscellaneous

MAMMOMAT Novation

SPB7-250.831.01.02.02

Siemens AG

08.04

CS SD 24

Page 30 of 32

Medical Solutions

6.3 Quality

Proceed with the test according to the Quality Control Manual.

Q

Monitor check and viewing conditions

•

Perform the check according to the Quality Control Manual, chapter "Monitor check and
viewing conditions", to assess the quality of the acquisition workstation monitor.

Q

Printer check

•

Perform this check according to the Quality Control Manual, chapter "Printer check", to
assess the quality of the printer.

QIQ

Phantom image quality check

•

Perform the image quality check according to the Quality Control Manual, chapter
"Phantom image quality".

X

QIQ

Detector uniformity

•

Perform the image quality check according to the Quality Control Manual, chapter "De-
tector uniformity", to ensure that the pixel values of the detector do not deviate more
than 5% from each other.

X

QIQ

Beam quality (HVL)

•

Perform the image quality check according to the Quality Control Manual, chapter
"Beam quality", to optimize the dose calculation

X

QIQ

AEC image stability, repro and signal-to-noise (SNR)

•

Perform the check according to the Quality Control Manual, chapter "AEC image stabili-
ty, repro and signal-to-noise (SNR)", to assure, that the coefficient of variation for the
entrance dose and mAs is less than 0.05 and the SNR does not vary more than

±

15%

from the mean value.

X

QIQ

Ghost image evaluation

•

Perform the check according to the Quality Control Manual, chapter "Ghost image eval-
uation", to ensure that the ghosting is within an acceptable level.

X

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Содержание MAMMOMAT Novation

Страница 1: ...ll rights including rights created by patent grant or registration of a utility model or design are reserved Print No W e l s i n g MAMMOMAT Novation System Maintenance Instructions SP 2003 SPB7 250 831 01 02 02 Replaces SPB7 250 831 01 01 02 English Doc Gen Date 08 04 Maintenance Instructions The protocol SPB7 250 832 01 02 02 is required for these instructions 06646900 ...

Страница 2: ... to order current revision levels Disclaimer The installation and service of equipment described herein is to be performed by qualified personnel who are employed by Siemens or one of its affiliates or who are otherwise authorized by Siemens or one of its affiliates to provide such services Assemblers and other persons who are not employed by or otherwise directly affiliated with or authorized by ...

Страница 3: ..._______ Column stand__________________________________________________ 15 Checks 16 4 _______ Compression and system movements _____________________________ 18 Testing the compression function 18 Compression cutoff 18 Testing the decompression function 19 Decompression cutoff 19 Travel 19 Applying oil and grease 19 Compression thickness display 21 Checking miscellaneous system movements 22 5 _____...

Страница 4: ...rmation MAMMOMAT Novation SPB7 250 831 01 02 02 Siemens AG 08 04 CS SD 24 Page 4 of 32 Medical Solutions 1 1 General information 1 1 Training Self instruction package or training workshop and at least 1 installation ...

Страница 5: ... Page 5 of 32 Medical Solutions 1 2 Required documents Planning Guide SPB7 250 891 Wiring diagrams SPB7 250 844 Installation and Start up Instructions SPB7 250 812 Software SPB7 250 816 Maintenance protocol SPB7 250 832 Instructions for use SPB7 250 201 Quality Control Manual SPB7 250 210 ...

Страница 6: ...rvice Laptop for CSE s no Power Line Impedance Meter 84 28 104 no Power ground wire tester 44 15 899 no Luminance meter for monitor cali bration e g Mavo monitor or Wellhöfer LX plus 05 146 167 97 02 432 no Luminance meter measures the light intensity from the X ray field e g SMfit Mammo 88 81 281 no Dose Meter e g Solidos 88 81 323 no Ion chamber For dose meter Solidos 88 81 315 no Densitometer e...

Страница 7: ... Tools One 0 1 mm two 0 2 mm and one 0 5 mm sheets of aluminum 99 1100 alloy 4x4 cm 88 81 273 no Mammography line pair phantom 2 10 lm mm 88 81 299 no Collimator mounted plexi 4cm yes Compression plate simulator yes 4 2 cm plexi Size of the detector 74 47 720 no Ethernet cable no Serial PC cable RS232 Array BRICK 66 55 745 yes Serial PC cable RS232 Stand 99 00 440 no Cassette Film 24x30 cm no Cent...

Страница 8: ...8 General information MAMMOMAT Novation SPB7 250 831 01 02 02 Siemens AG 08 04 CS SD 24 Page 8 of 32 Medical Solutions 1 4 Required lubricants All purpose grease PD2 Viscogen oil ...

Страница 9: ...UTION CAUTION used with the safety alert symbol indicates a risk of dan ger that may lead to slight or moderate physical injury and or dam age to property n a NOTICE NOTICE used without the safety alert symbol indicates a risk of danger that if disregarded may cause a situation leading to an un desirable result or state other than death physical injury or dam age to property n a NOTE NOTE contains...

Страница 10: ...pair work and tests please note the product specific safety information in the document the safety information in TD00 000 860 01 as well as the safety information contained in the TI folder in Register 2 Tests or ajdustments that must be made with radiation switched on are identified with the radiation warning symbol During these types of adjustments radiation protective clothing must be worn ...

Страница 11: ...M Mechanical safety inspection PM Preventive maintenance PMP Preventive maintenance parts replacement external inspection etc PMA Preventive maintenance adjustments PMF Preventive maintenance function check operating value check Q Quality check QIQ Image quality check QSQ System Quality Check SW Software Maintenance CSE Customer service engineer CS No Customer specific number IVK Installed volume ...

Страница 12: ... MAMMOMAT Novation SPB7 250 831 01 02 02 Siemens AG 08 04 CS SD 24 Page 12 of 32 Medical Solutions 1 8 Symbols X Checks and adjustments that must be performed with radiation ON are identified by the radiation warning symbol ...

Страница 13: ...shield and compression plate for correct seating and for damage 2 Fig 1 p 13 SIM Level Verify that the system is leveled with respect to the floor Check the leveling screws 3 Fig 1 p 13 with a water level and if available the floor mounting optional SIM Swivel arm attachment Check the swivel arm attachment by pulling on both support rails minimum play of ap proximately 2 is correct 4 Fig 1 p 13 SI...

Страница 14: ...eck the condition of the cables and the corrugated tubing 3 Fig 2 p 14 while re moving the following covers X ray tube covers left right and front 1 2 Fig 2 p 14 all covers of the stand 3 6 Fig 3 p 14 WARNING The edges of the metal curtain are very sharp and may cause ser vere injury Attach the protective strips Fig 2 X ray tube covers Fig 3 Covers ...

Страница 15: ... AG SPB7 250 831 01 02 02 MAMMOMAT Novation 08 04 CS SD 24 Column stand 15 Page 15 of 32 Medical Solutions 3 3 Column stand NOTE To gain access to the rear of the column stand you have to swivel the generator ...

Страница 16: ...mal to hear some noise caused by the rotation of the radi ation filter in the collimator when switching the system ON Do the limit switches stop the carriage travel at the top and at the bottom Activate safety switch S882 System movements must be blocked PMF Vertical travel Is the vertical travel smooth and noiseless Switch the system OFF and attach the protective strips once again SIM Safety catc...

Страница 17: ... 17 of 32 Medical Solutions Fig 5 Ball bearings SIM Mounting for the X ray tube Check the mounting for the X ray tube unit 1 Fig 6 p 17 Fig 6 X ray tube PMA Grease the grid spindle Remove the cover plate from the object table and lightly grease the grid spindle Reat tach the cover plate ...

Страница 18: ...ion cutoff System ON PMF Presetting Select any value e g 6 kp on the potentiometer 2 Fig 1 p 18 and compress Does the compression unit cut off at that setting SIE Max value for cutoff Select the maximum value 20 kp with the potentiometer 2 Fig 1 p 18 20 kp Does the unit cut off when it reaches the maximum value Correct display chapter 2 System 6 Fig 1 p 13 PMF OPCOMP Position your forearm between ...

Страница 19: ... at the compression plate 4 2 2 Travel PMF Compression travel Move the compression plate up and down Is the movement smooth and noiseless through the entire range 4 2 3 Applying oil and grease PMA Oil and grease the compression unit System OFF Remove the upper and lower covers snap closures 2 Fig 2 p 20 and pot knob 3 Fig 2 p 20 After removing the small Allen screws two above and two below the rig...

Страница 20: ...20 Compression and system movements MAMMOMAT Novation SPB7 250 831 01 02 02 Siemens AG 08 04 CS SD 24 Page 20 of 32 Medical Solutions Fig 2 Remove the right cover Fig 3 Grease the rails ...

Страница 21: ... and system movements 21 Page 21 of 32 Medical Solutions 4 3 Compression thickness display PMF Thickness indicator System ON Move the compression plate to its full height and measure the height The value displayed chapter 2 System 6 Fig 1 p 13 must agree with the value measured ...

Страница 22: ...ements cut off when a preset angle is reached The angle e g 90 is preset with the potentiometer 3 Fig 1 p 18 Check the automatic cutoff function when passing the 0 position as well PMF Rotation movements Is the rotation smooth and noiseless through the entire range Is the display correct chapter 2 System 6 Fig 1 p 13 SIM Blocking the rotation and vertical travel Rotation and vertical travel must b...

Страница 23: ...1 01 02 02 MAMMOMAT Novation 08 04 CS SD 24 Test exposures 23 Page 23 of 32 Medical Solutions 5 5 Test exposures X Test the kV mA control loop according to Installation Start Up instructions chapter Checks with high voltage ...

Страница 24: ...cus on tube test point G against test point H3 Does the value measured agree with the value in the test proto col Test both focal spots if available PMF Signal lamp Does the radiation ON indicator light up PMF Chest wall missed tissue Perform the check according to the Quality Control Manual chapter Chest wall missed tissue to ensure that the chest wall missed tissue is within the tolerance of max...

Страница 25: ...panel to turn the MAMMOMAT ON Allow a warm up time of approximately 5 minutes The internal monitoring system automatically per forms a functional check of the MAMMOMAT dr is displayed on the film density dis play on the control panel to indicate that communication within the MAMMOMAT NovationDR system is functioning Attach a magnification table so that small focus is selected It does not matter if...

Страница 26: ...emens AG 08 04 CS SD 24 Page 26 of 32 Medical Solutions 5 3 Testing dose rate control X Cover the measurement field e g with a lead apron and release an exposure PMF Dose rate control Does the dose rate control switch the exposure off after approximately 100 ms ...

Страница 27: ...D 24 Test exposures 27 Page 27 of 32 Medical Solutions 5 4 Testing the radiation field light field Proceed with the test according to the Installation Start Up instructions chapter Col limator Adjustment X PMF Collimator check Is the collimator adjusted correctly ...

Страница 28: ...D 24 Page 28 of 32 Medical Solutions 6 6 Miscellaneous 6 1 Blocking exposure release PMF Blocking Exposure release must be blocked under the following conditions indicated on the control console No patient is registered No compression plate is mounted The wing is not in position ...

Страница 29: ... memory Read out the error memory and the exposure counter with the service PC PMP Record error memory PMP Delete the error memory Enter the data of the exposure counter and the error memory in the protocol and delete the error memory o n l y PMF Auxiliary voltages With the voltmeter measure the auxiliary voltages according to circuit diagram SPB7 250 844 System OFF PMF OPDOSE Check the selection ...

Страница 30: ...Q Detector uniformity Perform the image quality check according to the Quality Control Manual chapter De tector uniformity to ensure that the pixel values of the detector do not deviate more than 5 from each other X QIQ Beam quality HVL Perform the image quality check according to the Quality Control Manual chapter Beam quality to optimize the dose calculation X QIQ AEC image stability repro and s...

Страница 31: ...s PMP Covers Remove protective strips and attach all removed covers Check that all covers are com plete and firmly seated including the cable duct SIE Protective conductor test Perform the protective conductor test according to ARTD 002 731 17 PMP Cleaning Damaged paint Clean the unit using the materials recommended in the Instructions for use and repair any damaged paint System ON QSQ Final test ...

Страница 32: ...32 Miscellaneous MAMMOMAT Novation SPB7 250 831 01 02 02 Siemens AG 08 04 CS SD 24 Page 32 of 32 Medical Solutions ...

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