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)