Model 44-10 Gamma Scintillator

Ludlum 44-10 2x2 NaI Scintillation probe

The Model 44-10 is a 2 inch X 2 inch NaI(Tl) Gamma Scintillator that can be used with several different instruments including survey meters, scalers, ratemeters, and alarm ratemeters.

Indicated Use Low-level, wide-energy gamma detection
Detector Type NaI(Tl) scintillator, 5.1 cm (2 in.) dia. x 5.1 cm (2 in.) thick
Efficiency (4π)
125I: 4%
57Co: 20%
137Cs: 9%
60Co: 15%
Typical Sensitivity (137Cs gamma) 900 cpm per μR/hr
Recommended Energy Range 30 keV to 3.0 MeV
Energy Response Energy dependent
Typical Background (10 µR/hr field) 9750 cpm
Photomultiplier Tube 5.1 cm (2 in.) diameter
Operating Voltage 500 to 1200 V
Temperature Range -20 to 50 °C (-4 to 122 °F)
May be certified to operate from -40 to 65 °C (-40 to 150 °F)
Environmental Rating IP65
Connector Series "C"
Construction Aluminum with beige powder coat
Size (D x L) 6.6 x 27.9 cm (2.6 x 11 in.)
Weight 1.04 kg (2.3 lb)