Gamma Detector - Model 44-2
CE Seal
Specifications

INDICATED USE: low-level, wide-energy
SUGGESTED INSTRUMENTS: general purpose survey meters, ratemeters, and scalers
DETECTOR TYPE: scintillator, 2.5 x 2.5 cm (1 x 1 in.) (Dia x L) thick Nal
SENSITIVITY: typically 175 cpm/µR/hr (137Cs gamma)
BACKGROUND: 1800 cpm
EFFICIENCY: 125I for 7%; 57Co for 10%; 137Cs for 3%; 60Co for 3%
RECOMMENDED ENERGY RANGE: 20 KeV to 1.5 MeV
ENERGY RESPONSE: energy dependent, see graph below
PHOTOMULTIPLIER TUBE: 2.86 cm (1.125 in.) diameter
OPERATING VOLTAGE: 500 to 1200 volts
CONNECTOR: series "C"
TEMPERATURE RANGE: -15 to 50 °C (5 to 122 °F), may be certified for -40 to 65 °C (-40 to 150 °F)
SIZE: 5.1 x 18.5 cm (2 x 7.3 in.) (Dia x L)
WEIGHT: 0.5 kg (1 lb)
 
 
 
 

Energy Response

RC_M44-2

Alternative Detector

Model 44-10: 5.x x 5.1 cm (2 x 2 in.) NaI