Ludlum Model 43-65
Alpha Scintillation Detector
Part Number 47-1441
INDICATED USE: Alpha survey
SCINTILLATOR: ZnS(Ag)
WINDOW: Typically 0.8 mg/cm2 aluminized mylar (1.2 mg/cm2 recommended for outdoor use)
BACKGROUND: 2 cpm or less
NON-UNIFORMITY: Less than 10%
SUGGESTED INSTRUMENTS: General purpose survey meters, ratemeters, and scalers
OPERATING VOLTAGE: Typically 500 - 1200 volts
WINDOW AREA: 63 cm2 active; 50 cm2 open
PHOTOMULTIPLIER TUBE: 1.5" (3.8 cm) diameter
EFFICIENCY (4pi): 17%-239Pu; 17%-230Th
SIZE: 7.5" H x 4" W x 6.5" L (19.1 x 10.2 x 16.5 cm)
WEIGHT: 1.4 lbs (0.6 kg)
Click Here to Download a Printable Information Sheet. (.pdf format)
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