Alpha Sample Counter Head - Model 43-9
CE Seal
Specifications

INDICATED USE: sample counting
SUGGESTED INSTRUMENTS: Model 2000, 2200, 2221, 2241 Series
SAMPLE SIZE (maximum): 2.54 cm (1 in.) diameter
SAMPLE HOLDER: O-ring sealed stainless steel slide
SCINTILLATOR: ZnS (Ag)
PHOTOMULTIPLIER TUBE: 3.8 cm (1.5 in.) diameter
OPERATING VOLTAGE: 500–1200 volts
WINDOW: 0.4 mg/cm²
EFFICIENCY (4π): 30% for 230Th
BACKGROUND: 3 cpm or less
SIZE:
detector: 7.6 x 21.6 cm (3 x 8.5 in.) (Dia x L),
sample tray: 4.6 x 14 cm (1.8 x 5.5 in.) (Dia x L)
WEIGHT: 0.9 kg (2 lb)