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Farmer Chamber

Ionization Chamber

Type 30010, 30011, 30012, 30013

Technical Manual - Technical Specifications

28

D596.131.00/05 en

Figure 6: Drawing of the Farmer chamber type 30011 (dimensions in mm)

Figure 7: Drawing of the Farmer chamber type 30012 (dimensions in mm)

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Summary of Contents for 30010

Page 1: ...D596 131 00 05 en 2016 01 ext Hn User Manual Farmer Chamber Ionization Chamber Type 30010 30011 30012 30013 Contents Operating Manual Technical Manual Service Manual...

Page 2: ...ith the product Safe operation and proper product performance are not guaran teed if accessories or consumables from other manufacturers are used PTW Freiburg cannot be held liable for dam age resulti...

Page 3: ...r te Gesetz Elektro Altger te Register EAR Registration number DE15599992 PTW Freiburg works in strict accordance with a quality management system that is contin uously updated according to the nation...

Page 4: ...of Figures 5 Intended Use 6 Safety Information 7 Operating Manual 13 1 Application 13 2 Measuring Ranges 18 Technical Manual 21 3 Technical Specifications 21 4 Electromagnetic Compatibility according...

Page 5: ...igure 2 Farmer chamber type 30013 6 Figure 3 Definition of the patient environment 12 Figure 4 Drawing of the Farmer chamber type 30010 dimensions in mm 24 Figure 5 Drawing of the Farmer chamber type...

Page 6: ...fer in the material used for the chamber walls and for the central electrode Furthermore the Farmer chamber type 30013 is waterproof The chambers are used for measure ments in the radiation beam in ra...

Page 7: ...gnal word Type of danger Source of danger Consequence Measures to prevent hazards Signal Words DANGER Indicates an imminent hazard If not avoided the hazard will result in death or serious injury WARN...

Page 8: ...e is added to the ambient air DANGER Electricity is a source of risk particularly when the product is not in perfect operating condition or when it is operated inappropriately Shock Hazard Before usin...

Page 9: ...city is a source of risk particularly when the product is operated inappropriately Shock Hazard Use of peripheral devices Connect only peripheral devices PC printer that meet the requirements of the s...

Page 10: ...oduct Do not use the product in the immedi ate vicinity or placed on top of or below other equipment However if the applica tion requires an arrangement of devices as described above the product shoul...

Page 11: ...rated range of use as indicted in the section Technical Specifica tions Handle the product with care NOTICE To avoid damage to the cables and connectors observe the following points Do not kink the c...

Page 12: ...nt environment Symbols on the Nameplate Symbol Description Refer to the user manual The product bears the CE mark Manufacturer and date of manu facture Reference number Serial number Separate collecti...

Page 13: ...e connected devices check that all plugs are properly connected NOTICE To avoid equipment damage observe the information about electrometer connection and setup and about measurements provided in the...

Page 14: ...ion Information The detectors are intended to be used with PTW precision electrometers according to IEC 60731 The detectors are used for dose and dose rate measurement for the measuring quantities abs...

Page 15: ...gh voltage is not applied to any of the exposed com ponents Connection cables with an overall length of up to 100 m can be used between the detectors and the measuring device For measurements with 137...

Page 16: ...ctor and the cap Guard Ring The guard ring of the detector is designed up to the sensitive volume The potential of the guard ring is equivalent to the potential of the central electrode When the detec...

Page 17: ...al chamber plates are available for mea surements with the detector Mount the detector as follows Unscrew the build up cap from the detector Carefully insert the detector into the chamber plate The ma...

Page 18: ...range limit of the dose rate in consideration of the recombination losses is given in section 3 Technical Specifications Measuring ranges for use with a TANDEM Measuring ranges Dose rate LOW MEDIUM HI...

Page 19: ...es Dose LOW MEDIUM HIGH 100 Gy 325 Gy 10 mGy 33 kGy 1 Gy 3 3 MGy Dose rate LOW MEDIUM HIGH 600 Gy min 300 mGy min 60 mGy min 30 Gy min 6 Gy min 3 kGy min Measuring ranges for use with a UNIDOS webline...

Page 20: ...Farmer Chamber Ionization Chamber Type 30010 30011 30012 30013 Operating Manual Measuring Ranges 20 D596 131 00 05 en...

Page 21: ...Application standard chambers for absolute and relative dosimetry in combination with precision electrometers according to IEC 60731 Particular design characteris tics shell chamber thimble chamber v...

Page 22: ...Gy s 99 5 saturation 5 Gy s Maximum dose per radiation pulse at nominal voltage 99 0 saturation 0 91 mGy 99 5 saturation 0 46 mGy Ion collection time at nomi nal voltage 140 s Polarity effect 0 5 at...

Page 23: ...size Temperature Relative humidity Atmospheric pressure Maximum operating alti tude 100 400 V photons 30 kV 50 MV electrons 10 45 MeV protons 50 270 MeV 5 cm x 5 cm 40 cm x 40 cm square field size 10...

Page 24: ...ber Type 30010 30011 30012 30013 Technical Manual Technical Specifications 24 D596 131 00 05 en Figure 4 Drawing of the Farmer chamber type 30010 dimensions in mm Figure 5 Drawing of the Farmer chambe...

Page 25: ...in combi nation with precision electrometers according to IEC 60731 Particular design characteris tics shell chamber thimble chamber vented not waterproof guard ring Measuring quantities air kerma and...

Page 26: ...imum dose per radiation pulse at nominal voltage 99 0 saturation 0 91 mGy 99 5 saturation 0 46 mGy Ion collection time at nomi nal voltage 140 s Polarity effect 0 5 at 60Co Directional response 0 5 fo...

Page 27: ...ber voltage Energy Field size Temperature Relative humidity Atmospheric pressure Maximum operating alti tude 100 400 V photons T30011 T30012 140 kV 50 MV 60 kV 50 MV electrons 10 45 MeV protons 50 270...

Page 28: ...ber Type 30010 30011 30012 30013 Technical Manual Technical Specifications 28 D596 131 00 05 en Figure 6 Drawing of the Farmer chamber type 30011 dimensions in mm Figure 7 Drawing of the Farmer chambe...

Page 29: ...monitored in order to ensure its proper functioning in the specific arrangement Guidance and Manufacturer s Declaration Electromagnetic Emissions The product is intended for use in the electromagneti...

Page 30: ...nt burst IEC 61000 4 4 2 kV for power supply lines 1 kV for input output lines not applicable 1 kV for input output lines Mains power quality should be that of a typical commercial or hospital envi ro...

Page 31: ...Immunity tests IEC 60601 test level Compliance level Electromagnetic environment guidance Power frequency 50 60 Hz magnetic field IEC 61000 4 8 3 A m 3 A m Power frequency magnetic fields should be at...

Page 32: ...the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance d 3 5 U1 P 1 2 P d 3 5 E1 P 1 2 P 80 MHz to 800 MHz d 7...

Page 33: ...predicted theoretically with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the l...

Page 34: ...d maximum output power of transmitter W Separation distance according to frequency of transmitter m 150 kHz to 80 MHz d 3 5 U1 P 1 2 P 80 MHz to 800 MHz d 3 5 E1 P 1 2 P 800 MHz to 2 5 GHz d 7 E1 P 2...

Page 35: ...012 Holder for radioactive check device T48002 3 003 TRUFIX precision mounting system for positioning of detectors in TBA sys tems L981150 TRUFIX precision mounting system holder for Farmer chamber T3...

Page 36: ...Farmer Chamber Ionization Chamber Type 30010 30011 30012 30013 Technical Manual Accessories and Spare Parts 36 D596 131 00 05 en...

Page 37: ...ANGER Liquids have entered the product Shock Hazard Erroneous Measurements Have the product inspected by service person nel before putting it into service again NOTICE To avoid surface damage do not u...

Page 38: ...suring device always pull on the connector not on the cable Only wipe the detectors and the connection cables down Do not immerse the detectors or connection cables in liquid Liquids must not be allow...

Page 39: ...been subjected to higher humid ity this can result in increased leakage current Such a detector can normally be restored to normal functionality by heating to 40 C for at least 8 hours at low humidit...

Page 40: ...Calibrations should be done at 60Co It is recommended to have the product calibrated every 2 years at PTW Freiburg or by specially trained staff on site when using a radioactive check device and perf...

Page 41: ...lectromagnetic compatibility EMC Part 3 3 Limits Limitation of voltage changes voltage fluctuations and flicker in public low voltage supply systems for equip ment with rated current 16 A per phase an...

Page 42: ...ensions Farmer chamber type 30011 27 Dimensions Farmer chamber type 30012 28 Dimensions Farmer chamber type 30013 24 Disposal 40 E Electromagnetic compatibility 29 G General information 2 Guard 16 Gua...

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