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HomeRadiological InstrumentsLudlum Model 44-40 Lead Shielded pancake style GM Probe

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Ludlum Model 44-40 Lead Shielded pancake style GM Probe

$400.00

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SKU: 214772321 Product Type: Radiological Instruments Vendor: Ludlum
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Ludlum Model 44-40

Specifications

 

INDICATED USE: alpha, beta, gamma survey; sample counting
DETECTOR: pancake-type, halogen quenched GM
WINDOW: 1.7 + 0.3 mg/cm² mica with stainless steel protective screen
WINDOW AREA: 15.51 cm² (2.4 in²) active, 12.26 cm² (1.9 in²) open
EFFICIENCY (4π): 5% for 14C; 22% for 90Sr/90Y; 19% for 99Tc; 32% for 32P; 15% for 239Pu
SENSITIVITY (137Cs gamma): 3300 cpm/mR/hr
ENERGY RESPONSE: energy dependent, see curve below
BACKGROUND: 25 cpm
GAMMA FRONT TO BACK RATIO: 4 to 1
LEAD SHIELD THICKNESS: 1.3 cm (0.50 in.)
DEAD TIME: 80 microseconds

OPERATING VOLTAGE: 900 volts
CONSTRUCTION: painted lead housing
SIZE: 11.4 x 10.2 x 16.5 cm (4.5 x 4 x 6.5 in.) (H x W x L)
WEIGHT: 2.5 kg (5.5 lb)

Additional information

Weight 15 lbs
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