Common Neutron Detectors
The table, below, shows the characteristics of some of the most common Neutron Detectors (on mobile devices, you can scroll or swipe on the table contents to view more data, or click here to view larger version of the full table):
| Detector Type | Size | Neutron Active Material |
Incident Neutron Energy |
Neutron Detection Efficiency (%) |
Gamma-Ray Sensitivity (R/h)b |
|---|---|---|---|---|---|
| Plastic scintillator | 5 cm thick | 1H | 1 MeV | 78 | 0.01 |
| Liquid scintillator | 5 cm thick | 1H | 1 MeV | 78 | 0.1 |
| Loaded scintillator | 1 mm thick | 6Li | thermal | 50 | 1 |
| Hornyak button | 1 mm thick | 1H | 1 MeV | 1 | 1 |
| Methane (7 atm) | 5 cm diam | 1H | 1 MeV | 1 | 1 |
| 4He (18 atm) | 5 cm diam | 4He | 1 MeV | 1 | 1 |
| 3He (4 atm), Ar (2 atm) | 2.5 cm diam | 3He | thermal | 77 | 1 |
| 3He (4 atm), CO2 (5%) | 2.5 cm diam | 3He | thermal | 77 | 10 |
| BF3 (0.66 atm) | 5 cm diam | 10B | thermal | 29 | 10 |
| BF3 (1.18 atm) | 5 cm diam | 10B | thermal | 46 | 10 |
| 10B-lined chamber | 0.2 mg/cm2 | 10B | thermal | 10 | 103 |
| Fission chamber | 2.0 mg/cm2 | 235U | thermal | 0.5 | 106-10 |
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