Alpha/Beta Detector - Model 43-1-1
CE Seal
Specifications

INDICATED USE: alpha beta survey
SUGGESTED INSTRUMENTS: Models 2224-1, 2360
DETECTOR TYPE: scintillator, ZnS(Ag) adhered to 0.03 cm (0.01 in.) thick plastic scintillation material
PHOTOMULTIPLIER TUBE: 3.8 cm (1.5 in.) diameter
DETECTOR OPERATING VOLTAGE: typically 500–1200 volts
WINDOW AREA: 75 cm² open
WINDOW: 1.2 mg/cm² metalized polyester
NON-UNIFORMITY: less than 10%
EFFICIENCY (4π): 30% for 239Pu; 30% for 90Sr/Y; 4% for 14C
BACKGROUND: alpha - less than 3 cpm; beta - typically 300 cpm or less
CROSS TALK:
alpha to beta - less than 10%
beta to alpha - less than 1%
SIZE: 12.2 x 24.9 cm (4.8 x 9.8 in.) (Dia x L)
WEIGHT: 0.9 kg (2 lb)