Neutron Meters
Ludlum Neutron Meters Comparison Table
Lightweight Digital Neutron Survey Meter
- Digital Meter
- 3He Proportional Detector
- Moderator: 19.5 cm (7.7 in.) dia.
- Sensitivity (241AmBe): 4.5 cpm per µSv/h (45 cpm per mrem/hr) or 10 cpm per µSv/h (100 cpm per mrem/hr)
- Range: 0 to 99.9 mSv/h (0 to 9.99 rem/hr)
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Neutron Dose Survey Meter With Optional Internal Gamma Detector
- Digital Meter
- 3He Proportional Detector
- Moderator: 19.5 cm (7.7 in.) dia.
- Sensitivity (241AmBe): 4.5 cpm per µSv/h (45 cpm per mrem/hr) or 10 cpm per µSv/h (100 cpm per mrem/hr)
- Range: 0 to 100 mSv/h (0 to 10,000 rem/hr)
- Internal Detector Option for Exposure/Dose Measurements
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Neutron Dose Survey Meter
- 4-Range Analog Meter
- Moderator: 19.5 cm (7.7 in.) dia.
- Sensitivity (241AmBe): 10 cpm per µSv/h (100 cpm per mrem/hr)
- Range: 0 to 100 mSv/h (0 to 10,000 mrem/hr)
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Digital Neutron Survey Meter
- Digital Meter
- 3He Proportional Detector
- Moderator: 22.9 cm (9.0 in.) dia.
- Sensitivity (241AmBe): 10 cpm per µSv/h (100 cpm per mrem/hr)
- Range: 0 to 99.9 mSv/h (0 to 9.99 rem/hr)
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Neutron Dose Survey Meter
- 4-Range Analog Meter
- Model 42-31H 3He Proportional Detector
- Moderator: 22.9 cm (9.0 in.) dia.
- Sensitivity (241AmBe): 10,000 cpm per mSv/h (100 cpm per mrem/hr)
- Range: 0 to 100 mSv/h (0 to 10,000 mrem/hr)
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Neutron Dose Survey Meter
- Digital Scaler-Ratemeter
- Model 42-31H 3He Proportional Detector
- Moderator: 22.9 cm (9.0 in.) dia.
- Sensitivity (241AmBe): 30 cpm per mrem/hr
- Range: 0 to 100 mSv/h (0 to 10,000 mrem/hr)
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Area Monitor with Neutron Detector
- Digital Area Monitor
- 3He Proportional Detector
- Moderator: 22.9 cm (9.0 in.) dia.
- Sensitivity: 10,000 cpm per mSv/h (100 cpm per mrem/jr)
- Range: 0 to 100 mSv/h (0 to 10 rem/hr)
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Neutron Dose Survey Meter
- Neutron and Gamma Detection
- Analog + Digital Scaler-Ratemeter
- External Model 42-41L PRESCILA Detector
- Neutron Sensitivity: 350 cpm per mrem/hr
- Range: 0.1 mrem/hr to 1 rem/hr
- Internal GM Detector
- Gamma Sensitivity: 1000 cpm per mR/hr
- Range: 1 µSv/h to 10 m Sv/h (0.1 mR/hr to 1 R/hr)
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Neutron Dose Survey Meter
- Neutron and Alpha-Beta-Gamma Detection
- 4-Range Analog Meter
- Model 42-14H 3He Proportional Detector
- Sensitivity (241AmBe): 55 cpm per mrem/hr
- Model 44-7 End-Window GM Detector
- Sensitivity (137Cs): 2100 cpm per mR/hr
- Range: 0 to 500,000 cpm
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