79
0473
90001
Rev
07.26.13
6.
Uniformity Test:
move the other 4 HU large circular measurements into the four
quadrants, with the one from the prior step still in the center of the axial image. Note the
Mean of each measurement. The mean of each quadrant measurement should be
within 250
HU's from the center measurement mean.
Radiation Output Test:
It is recommended that a check of the kVp(eff) and Radiation Output of the X-ray source be
performed annually by a qualified Physicist. The incident Absorbed Dose at the detector may
be measured using a dosimeter. Tests are performed to assess output value and to check for
tube output consistency and timer accuracy.
1. Attach a dosimeter to the detector such that the sensor is positioned where the vertical
and lower horizontal laser lights intersect.
2. Perform a Standard scan of 20 cm diameter x 20 cm height, 0.3 voxel (Procedure Name:
Medium Field (120kVp)) and record the time and dose from the meter.
WARNING
The X-ray device may be dangerous to the
Patient and Operator if you do not observe and follow operating
instructions. Do not operate this system unless you have
received training to perform a procedure
Содержание pedCAT
Страница 32: ...31 0473 90001 Rev 07 26 13 Rear Connector Panel Voltage Nameplate location System Label location ...
Страница 34: ...33 0473 90001 Rev 07 26 13 Indicator Panel on machine Patient Platform label Patient Seat label ...
Страница 35: ...34 0473 90001 Rev 07 26 13 Handle Bar Label Cleaning Instructions Label Pinch Point Label Laser Label ...
Страница 37: ...36 0473 90001 Rev 07 26 13 Tube Head Label Beam Limiter Label X Ray Power Supply label ...
Страница 40: ...39 0473 90001 Rev 07 26 13 Laser Lights Button ...
Страница 93: ...92 0473 90001 Rev 07 26 13 Beam Path and Angulation ...
Страница 97: ...96 0473 90001 Rev 07 26 13 ...
Страница 144: ...143 0473 90001 Rev 07 26 13 ...
Страница 168: ...167 0473 90001 Rev 07 26 13 ...