FujiFilm ClearView CS, Service Manual

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CR-IR 363
Service Manual
MC-422
MC-422
011-202-11E
06.29.2012 FM6046
18.3 Special Sensitivity Correction for IP Type
HR and HR-BD
Only when the following conditions are met, special sensitivity adjustment can be
achieved.
- When the IP type HR-BD (both side) is exposed with the tungsten X-ray tube
{MC:18.3.1 _Special Sensitivity Correction for IP Type HR-BD Using Tungsten
X-ray Tube}
- When the IP type HR (one side) is exposed with the molybdenum X-ray tube
{MC:18.3.2 _Special Sensitivity Correction for IP Type HR Using Molybdenum
X-ray Tube}
CAUTION
When the shading data is of default, special sensitivity correction cannot be
done. Perform shading correction, before special sensitivity correction.
{MC:18.2 _Shading Correction for IP Type HR and HR-BD}
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NOTE
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The IP must be read for a one-minute period from 10 to 11 minutes after the X-ray
exposure. Otherwise, correct correction on the sensitivity cannot be done. Exercise
care.
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INSTRUCTIONS
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- The calibrated X-ray dosimeter should be used to measure the X-ray dose.
- Correction of the reading must be done for a one-minute period from 10 to 11
minutes after the exposure.
REFERENCES
- Observe the following when selecting the type of X-ray tube.
When the tungsten X-ray tube is used: TUNGSTEN FIX
When the molybdenum X-ray tube is used: AUTO SELECT
- S value corresponding to the X-ray dose
For the tungsten X-ray tube
When the X-ray dose is 0.36 mR: The S value is 1200.
When the X-ray dose is 3.6 mR: The S value is 120.
When the X-ray dose is 36 mR: The S value is 12.
For the molybdenum X-ray tube
When the X-ray dose is 2 mR: The S value is 1200.
When the X-ray dose is 20 mR: The S value is 120.
When the X-ray dose is 200 mR: The S value is 12.
18.3.1 Special Sensitivity Correction for IP Type HR-BD
Using Tungsten X-ray Tube
1.
Using the X-ray dosimeter, measure the X-ray dose for exposing the
IP, and write it down.
2.
Expose an IP of 18"x 24" HR-BD (both side) or 24"x 30" HR-BD (both
side) size with a tungsten X-ray tube (approx. 3.6 mR).