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Indicated Use Gamma survey Detector Energy-compensated GM tube Range 0 to 20 mSv/h (0 to 2 R/hr) Sensitivity (137Cs gamma) Typically 100 cpm per mR/hr Energy Response Reading with 20% of true value Meter Dial 0 - 20 mR/hr
Toggles and selects rate units:
Backlit indicators warn of low radiation (yellow)
and a battery test button
A built-in calibration routine permits calibration of the instrument and displays the results
Ludlum Model 44-6 Beta Gamma Detector, Thin wall GM detector Scionix Holland Indicated Use Gamma survey DetectorSide window GM probe. Similar to 44 38 but not energy compensated. INDICATED USE: beta, gamma survey SUGGESTED INSTRUMENTS: general purpose survey meters, ratemeters, and scalers DETECTOR: 30 45 mg cm stainless steel wall halogen quenched GM SENSITIVITY: 1200 cpm per mR hr (137Cs gamma) with window closed BACKGROUND: 20 cpm closed; 25 cpm open ENERGY RESPONSE: energy dependent BETA CUT OFF: approximately 200 keV (window open) DEAD TIME: typically 95
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