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The energy response to gamma through the detector sidewall is flat to within +61% or -26% over the range of 40 keV to 100 keV, and within +35% or -17% over the range of 100 keV to - 1.3 MeV (referenced to Cs-137).
Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%.
Detects beta at 50 keV with typical 35% detection efficiency.
Detects beta at 150 keV with typical 75% detection efficiency.
Detects gamma and x-rays down to 10 keV typical through the window (non-compensated), 40 keV through the sidewall.
Normal background is approx. 5-20 CPM.
Operating Range- Monitor 4 and Monitor 4EC:
0-50 mR/hr and 0-50,000 CPM, or 0-500μ Sv/hr and 0-50 mR/hr
Range Switch for the Monitor 4, Monitor 4EC: X1, X10, X100.
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