Model 44-20 Gamma Scintillator
The Model 44-20 is an integral 3" X 3" NaI(Tl) gamma scintillator that can be used with several different instruments including survey meters, scalers, ratemeters, and alarm ratemeters
PART NUMBER:47-1104
SCINTILLATOR: 3" (7.6 cm) diameter X 3" (7.6 cm) thick sodium iodide (NaI)Tl scintillator
SENSITIVITY: Typically 2300 cpm/microR/hr (Cs-137)
ENERGY RESPONSE: Energy dependent
COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters, and scalers
TUBE: 3"(7.6cm) diameter magnetically shielded photomultiplier
OPERATING VOLTAGE: Typically 500 - 1200 volts
DYNODE STRING RESISTANCE: 60 megohm
CONNECTOR: Series "C" (others available )
CONSTRUCTION: Aluminum housing with beige polyurethane enamel paint
TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C)
May be certified to operate from -40° F(-40° C) to 150° F(65° C)
SIZE: 3.3" (8.3 cm) diameter X 11.3" (28.7 cm)L
WEIGHT: 3.7 lb (1.7kg)