Equivalent to the NE BP6 / AP2, there are three versions of these 16 in2 (100 cm2) window probes available:
- Alpha only (Zinc sulphide layer).
- Beta only (Plastic scintillator).
- Alpha/ Beta (Zinc sulphide bonded to a plastic scintillator).
The use of a plastic scintillator avoids the traditional use of anthracene in this application, with a comparable response.
Efficiencies
SS600 Alpha/Beta, α background 1.9 cps, β background 7.5 cps. Listed as percentage of 2π emission rate
| Nuclide | Emission | Efficiency |
| Am-241 | α | 39.3% |
| Pu-238 | α | 42.0% |
| Nat U | α | 43.1% |
| Sr-90/Y-90 | β | 38.4% |
| C-14 | β | 1.5% |
| Pm-147 | β | 36.9% |
| Pu-238 | β | 4.7% |
| Co-60 | β | 14.0% |
| Cs-137 | β | 28.8% |
Documents
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Radiation-Monitors-US-Version-1.3
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