equivalent to one hundred rems. A microsievert (µSv) is one millionth of a sievert.
A curie is the amount of radioactive material that decays at the rate of 37 billion
disintegrations per second, approximately the decay rate of one gram of radium.
Microcuries (millionths of a curie) and picocuries (trillionths of a curie) are also
often used as units of measurement.
A becquerel (Bq) is equivalent to one disintegration per second.
Appendix A - Technical Specifications
Detector:
Internal
External RAP-RS1
Display:
indicators
Operating Range:
Efficiency:
4 p at contact
Gamma Sensitivity:
3500 CPM/mR/hr referenced
to Cs-137
Smallest detectable level for
I-125 is .02 mCi at contact
24
Halogen-quenched Geiger-Mueller tube.
Effective dia. 1.75" (45 mm).
Mica window density 1.5-2.0 mg/cm2.
Same detector as internal. Anodized aluminum
housing with black vinyl grip. 500 volt power
supply is located in the probe head.
Connectors: Amphenol 31226 twinax.
4-Digit liquid crystal display including mode
mR/hr:
.001 to 100.0
CPM:
0 to 350,000
Total:
1 to 9,999,000 counts
mSv/hr:
.01 to 1,000
CPS:
0 to 5,000
Sr(Y)-90: approx. 38%; C-14: approx. 5.3%
P-32: approx 33%; Co-57: approx. .3%