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The Model 44-21 is a dual crystal scintillation detector utilizing a thin plastic scintillator and 1" X 1mm NaI(Tl) crystal for beta and gamma measurements. |
PART NUMBER:47-1560 |
| INDICATED USE: Beta, low energy gamma detection SCINTILLATOR: 1" (2.5 cm) diameter X 1 mm thick NaI(Tl) crystal coupled to a 1" (2.5 cm) diameter X 0.01" (0.03 cm) thick plastic scintillator WINDOW: 1.2 mg/cm² aluminized mylar WINDOW AREA: Active and Open - 5.1 cm² EFFICIENCY(4pi geometry): Typically 19% - I-125; 5%-C-14; 28%-P-32 SENSITIVITY: Typically 40 cpm/microR/hr (Cs-137 gamma ) ENERGY RESPONSE: Energy dependent COMPATIBLE INSTRUMENTS: General purpose survey meters, ratemeters, and scalers TUBE: 1.5:(3.8cm) diameter magnetically shielded photomultiplier OPERATING VOLTAGE: Typically 500 - 1200 volts DYNODE STRING RESISTANCE: 100 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 for operation from -40° F(-40° C) to 150° F(65° C) SIZE: 2" (5.1 cm) diameter X 7.3" (18.5 cm)L WEIGHT: 2 lb (0.9kg) |
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Replacement Parts Photomultiplier Tube |
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