A series of three ergonomically balanced probes with a square window of 8 in2 (50 cm2) and a 64° angled handle.


Equivalent to the NE BP7, there are three versions 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

SS700 Alpha/Beta, α background 0.7 cps, β background 3.4 cps. Listed as percentage of 2π emission rate

Nuclide Emission Efficiency
Am-241 α 33.00%
Pu-238 α 32.10%
Nat U α 34.80%
Sr-90/Y-90 β 33.9
CI-36 β 30.60%
Co-60 β 13.20%
Cs-137 β 23.10%

Documents

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Alpha/Beta Contamination Probes