GP-200 End Window GM Probe

GP-200 End Window GM Probe


The GP-200 is a very good general purpose detector sensitive to most alpha, beta, and gamma radiation. Measures C-14, P-32, S-35 and Cs-137 with good efficiency. Has thin end window with 90% open SS screen for contamination and gamma dose monitoring to 200 mR/hr base on Cs-137 calibration.


GENERAL Intended for general alpha, beta, and gamma (dose) measurements
Compatibility All WB Johnson Instruments (others on request)
Operating Voltage 900 vdc
Window Thickness 1.6 mg/cm2
Range 200 mR/hr +_ energy dependent
CPM - mR/hr(Cs-137) 2500
Energy Response 60keV- 2 MeV gamma
Sensitive Area 9 cm2
Finish Black Polyurethane
Dimensions 1.2" dia x 5.5" L
Environmental -20° F[-28° C]-140° F[60° C] | 5-95% RH non-condensing IPX4
Weight 8 oz


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