The Model 43-2-2 is a dual phosphor alpha/beta scintillator that is designed to be used for simultaneously counting alpha and beta contamination

PART NUMBER:47-2003


INDICATED USE: Alpha-beta survey
SCINTILLATOR: ZnS(Ag) adhered to 0.010" thick plastic scintillation material
WINDOW: Typically 0.8 mg/cm squared aluminized mylar (1.2 mg/cm squared recommended for outdoor use)
WINDOW AREA: Active and Open - 12 cm squared
EFFICIENCY (4pi geometry): Typically 30% - Pu-239; 30% - Th-230; 20% - Sr-90/Y-90; 5% - C-14
BACKGROUND:
Alpha - Less than 3 cpm
Beta - Typically 50 cpm or less (10 microR/hr field)
NON-UNIFORMITY: Less than 10%
CROSS TALK:
Alpha to Beta - Less than 10%
Beta to Alpha - Less than 1%
COMPATIBLE INSTRUMENTS: Model 2224, Model 2360, Model 2929
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"(5.1cm) diameter X 7.3"(18.5cm)L
WEIGHT: 1 lb (0.5kg)

Replacement Parts

Mylar Window
Photomultiplier Tube
Scintillator

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