The Model 43-89 is a 100 cm▓ dual phosphor alpha/beta scintillator that is designed to be used for simultaneously counting alpha and beta contamination

PART NUMBER:47-2430


INDICATED USE: Alpha-beta survey
SCINTILLATOR: ZnS(Ag) adhered to 0.010" thick plastic scintillation material
WINDOW: Typically 1.2 mg/cm▓ aluminized mylar
WINDOW AREA:
Active - 125 cm▓
Open - 100 cm▓
EFFICIENCY (4pi geometry): Typically 16% - Pu-239; 5% - Tc-99; 16% - S-90/Y-90
BACKGROUND:
Alpha - Less than 3 cpm
Beta - Typically 300 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, 2360, 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: 5.5"(13.9cm)H X 4"(10.2cm)W X 12.3"(33cm)L
WEIGHT: 1.5 lb (0.7kg)

Replacement Parts

Mylar Window
Photomultiplier Tube
Scintillator
Protective Cover

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