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Model 43-65

Alpha Detector

Part Number: 47-1441

Specifications

Indicated Use	Alpha survey
Detector Type	ZnS(Ag) scintillator
Window	Typically 0.8 mg/cm² metalized polyester (1.2 mg/cm² recommended for outdoor use)
Window Area	Active: 63 cm² (9.8 in²) Open: 50 cm² ( 7.8 in²)
Efficiency (4π)	²³⁹Pu: 17% ²³⁰Th: 17%
Typical Background (10 µR/hr field)	≤ 3 cpm
Detector Uniformity	within 10% of average reading
Photomultiplier Tube	3.8 cm (1.5 in.) diameter
Operating Voltage	500 to 1200 V (typical)
Connector	Series "C" (others are available)
Construction	Aluminum housing with beige powder coat
Size (H x W x L)	10.2 x 10.2 x 24.9 cm (4 x 4 x 9.8 in.)
Weight	0.5 kg (1.2 lb)

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