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CR-IR347
Service Manual
PM - 14
009-058-03
08.30.2002 FM3476
PM - 14
■
Check for Jitter and HR
(1) Place steel rules and a washer on IPs of all sizes found at the institution, and expose
them. (Both ST and HR types. For the layout, see the illustration below.)
The IP exposure conditions are as follows.
❍
ST
• Dose:
1 mR
• X-ray tube target :
Tungsten
• Distance:
1.8 m
• Voltage:
80 kV
• Current:
50 mA
• Time:
0.013 sec
❍
HR
• Dose:
20 mR
• X-ray tube target/filter: Molybdenum/molybdenum
• Distance:
0.55 m
• Voltage:
28 kV
• Current:
100 mA
• Time:
0.053 sec
The layout of the steel rules and washer is shown below.
FR7H6950EPS
Cassette
Steel rules (150mm)
Steel rules (150mm)
Cassette
Washer (ø8–15)
Washer (ø8–15)
14" x 17"
24cm x 30cm mammo
Содержание CR-IR 347
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