CPI CMP 200 Series Service Manual page 209

CPI Canada Inc.
3D.3.0 AEC CALIBRATION (TABLE BUCKY) Cont
CAUTION: DURING THE FOLLOWING CALIBRATION PROCEDURE, BE SURE THAT THE SELECTED TECHNIQUES WILL NOT
OVERLOAD THE X-RAY TUBE. USE CAUTION WHEN REPEATING EXPOSURES AS THIS MAY QUICKLY OVERLOAD THE X-
RAY TUBE. MOST X-RAY TUBE MANUFACTURERS RECOMMEND NO MORE THAN TWO HIGH SPEED STARTS PER MINUTE.
NOTE: BE SURE TO USE THE SAME CASSETTE FOR EACH EXPOSURE AT THAT FILM SPEED.
FILM SPEED
100
200
400
800
Table 3D-7: Film speed vs. mAs @ 75 kV
The mAs values noted in the above table represent the approximate desired mAs at an SID of 40 in. (100 cm), using a grid with a 12:1 ratio.
All measurements were done with HVL = 3 mm Al @ 75 kV.
Use and disclosure is subject to the restrictions on the title page of this CPI document.
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CMP 200 Service Manual
mAs @ 75 kV
16
8
4
2
Ch # 901476-05 Rev. A
3D
AEC Calibration
Page 3D-16