Beta Sample Counter Head - Model 43-78-1
CE Seal
Specifications

INDICATED USE: large sample beta counting
SUGGESTED INSTRUMENTS: Models 2000, 2200
SAMPLE SIZE (Maximum): 12.7 x 0.46 cm (5 x 0.18 in.) (Dia x L)
SAMPLE HOLDER: anodized aluminum tray
SHIELDING: none
SCINTILLATOR: plastic adhered to a 0.6 cm (0.25 in.) light pipe
PHOTOMULTIPLIER TUBE: 12.7 cm (5 in.) diameter
OPERATING VOLTAGE: 500–1200 volts
WINDOW: windowless
EFFICIENCY (4π): 40% for 90Sr/90T; 12% for 14C; 35% for 99Tc
BACKGROUND: beta  gamma: 500 cpm or less
SIZE: 19.1 x 31.8 cm (7.5 x 12.6 in.) (Dia x L)
WEIGHT: 6.8 kg (15 lb)