Calibration
4-3
4.2.
kV Measurement and Adjustment
4.2.1.
kV Measurement and Accuracy Check
The X-ray generator is composed of high voltage transformer, high voltage rectifier and X-ray tube in one
pressurized oil tank. kV value can be measured by kV meter. Position the kV meter in the center of the X-
ray beam 30 cm above the focal spot.
KV Accurancy requirement
Take exposure at kV values below in manual normal Fluoro mode. The error should be within
±
7%
ranges. Otherwise, perform the kV adjustment procedure in section 4.2.2 until all the kV values meet the
requirement below.
Exposure
mode
kVp
value
mA or mAs Set Value
Calculation
Error
Minimum
(kVp)
Maximum
(kVp)
Low Dose
99 kVp
2mA
7%
92.07
105.93
Normal
Fluoro
66kVp
4mA
7%
61.38
70.6
110 kVp
1mA
7%
102.3
117.7
High Level
Fluoro
55 KVp
4mA
7%
51.15
58.85
110 kVp
4mA
7%
102.3
117.7
Digital Spot
55 KVp
4mA
7%
51.15
57.75
80 kVp
4mA
7%
74.4
85.6
110 kVp
4mA
7%
102.3
117.7
Radiography 55 kVp
40mAs (For 100/110V/120V input)
80mAs (For
200V/220V/230V/240V input)
7%
51.15
58.85
80KVp
40mAs
7%
74.4
85.6
110 kVp
20mAs
7%
102.3
117.7
KV Accurancy requirement in Australia
Take exposure at kVp values below in normal fluoro mode. The error should be within ±5% ranges.
Otherwise, perform the kVp adjustment procedure in Section 4.2.2 until all the kVp values meet the
requirements below.
Exposure
mode
kVp
value
mA or mAs Set Value
Calculation
Error
Minimum
(kVp)
Maximum
(kVp)
Low Dose
99 kVp
2mA
5%
94.05
103.95
Normal
Fluoro
66kVp
4mA
5%
62.7
69.3
110 kVp
1mA
5%
104.5
115.5
Содержание Brivo OEC 715
Страница 2: ......
Страница 19: ...Chapter1 Introduction and Safety...
Страница 41: ...Introduction and Safety 23 46 54 20 18 26...
Страница 55: ...Chapter2 System Overview...
Страница 137: ...Chapter3 Installation...
Страница 147: ...Installation 3 11 7 Put the ramp in position Release all bracket and move the workstation along the ramp off the pallet...
Страница 211: ...Installation 3 75 3 9 Reporting For U S Systems Complete and submit Form 2579 within 15 days of installation...
Страница 212: ...Chapter4 Calibration...
Страница 223: ...Brivo OEC 715 785 865 Mobile C Arm X Ray Product Service Manual 4 12 Mainframe Control Board TP7...
Страница 231: ...Brivo OEC 715 785 865 Mobile C Arm X Ray Product Service Manual 4 20 Mainframe Control Board TP17 POT4 J5 TP7 POT7 POT5...
Страница 275: ...Brivo OEC 715 785 865 Mobile C Arm X Ray Product Service Manual 4 64...
Страница 284: ...Chapter5 Software...
Страница 312: ...Software 5 29 4 Click Next 5 Click Install 6 Click Finish button to complete installation procedure...
Страница 326: ...Software 5 43 2 Click on install to continue 3 Click Next to continue...
Страница 335: ...Chapter6 Troubleshooting...
Страница 408: ...Chapter7 Replacement...
Страница 418: ...Replacement 7 11 166...
Страница 488: ...Chapter8 Periodic Maintenance...
Страница 502: ...Periodic Maintenance 8 15...
Страница 505: ...Chapter9 Technical Reference...
Страница 520: ...Brivo OEC 715 785 865 Mobile C Arm X Ray Product Service Manual 9 16 Lateral configuration 1 5m Lateral configuration 1m...
Страница 521: ...Technical Reference 9 17 Vertical configuration 1 5m Vertical configuration 1m...
Страница 526: ...11 Appendix System Schematics...