Ludlum Beta/Gamma Radiation Detectors |
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Model 44-6
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Ludlum Part Number: 47-1535
Beta, Gamma Radiation Survey Halogen Quenched GM Radiation Detector with Rotary Beta Window Used with Ludlum General Purpose Radiation Survey Meters, Ratemeters, Scalers Sensitivity (Cs-137): 1200 cpm/µR/hr Energy Response: Energy Dependent |
Background: 20 cpm Closed; 25 cpm Open
Efficiency (Closed): 17% Co-60; 0.35% Cs-137 Efficiency (Open): 19% Co-60; 0.50% Cs-137 Shield Closed Energy Response Shield Open Energy Response Data Sheet Product Manual Detector Clips |
Model 44-21
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Ludlum Part Number: 47-1560
Beta, Low-Energy Gamma Radiation Survey 1 in. x 1 mm NaI(Tl) Scintillation Detector Used with Ludlum General Purpose Radiation Survey Meters, Ratemeters, Scalers Energy Response: Energy Dependent Background: 450 cpm |
Efficiency(4π): 38%I-125; 19%I-129; 4%C-14; 28%P-32
Efficiency (Open): 19% Co-60; 0.50% Cs-137 Window Active/Open Area: 5.1 cm² Energy Response Data Sheet Product Manual |
Model 44-38
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Ludlum Part Number: 47-1588
Beta, Gamma Radiation Survey Halogen Quenched GM Radiation Detector Detection Range: ± 10% up to 50 mR/hr without DTC; up to 500 mR/hr with DTC Used with Ludlum General Purpose Radiation Survey Meters, Ratemeters, Scaler Gamma Energy Response: Within 20% from 60 keV to 1.3 MeV (Cs-137) |
Sensitivity: 1200 cpm/mR/h
Beta Cutoff: approximately 200 keV Sensitivity: 1200 cpm/mR/hr Background: 20 cpm closed; 25 cpm open Data Sheet Product Manual Closed Window Response Curve Open Window Response Curve Detector Clips |
Model 44-92
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Ludlum Part Number: 47-2362
Low-Level Beta, Gamma Radiation Survey Sealed Xenon Gas Proportional Detector Used with Some Ludlum General Purpose Radiation Survey Meters, Ratemeters, Scalers Sensitivity (Co-60): 36,000 cpm/mR/hr Window Active Area: 169 cm² |
Window Open Area: 140 cm²
Efficiency (4π): 10% C-14; 13% Tc-99; 24% Cl-36; 26% Sr-90/Y-90; 3% I-129; 1.6% Co-57; 1.2% Fe-55; 10% Pu-239 Data Sheet Product Manual |
Model 44-98
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Ludlum Part Number: 47-2465
Beta, Low-Energy Gamma Radiation Survey 1 in. x 1 mm Bismuth Germinate (BGO) Scintillation Radiation Detector Used with Some Ludlum General Purpose Radiation Survey Meters, Ratemeters, Scalers Energy Response: Energy Dependent |
Background: 650 cpm
Efficiency (4π): 15% I-125; 85 I-129; 3% C-14 Window Active/Open Area: 5 cm² Data Sheet Product Manual Response Curve |
Model 44-172
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Ludlum Part Number: 47-3543
Beta; Low-Energy Gamma Radiation Survey 1 in. x 1 mm Yttrium Oxyorthosilicate (YSO) Scintillation Radiation Detector Used with Ludlum Meters with 00-1200 Vdc and 35 mV input sensitivity Energy Response: Energy Dependent |
Background: 250 cpm or less
Efficiency (4π): 40% I-125; 25% I-129; 8% C-14; 7% Fe-55; 2.5% Cs-137; 11.7% Am-241; 7.4% Co-57 Window Active/Open Area: 5 cm² Data Sheet Product Manual |
