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The design, build and test of a digital analyzer for mixed radiation fields

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5 Author(s)
Joyce, M.J. ; Dept. of Eng., Lancaster Univ., Lancaster, UK ; Aspinall, M.D. ; Cave, F.D. ; Georgopoulos, K.
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The design, build and test of a digital analyzer for mixed radiation fields is described. This instrument has been developed to provide portable, real-time discrimination of hard mixed fields comprising both neutrons and γ rays with energies typically above 0.5 MeV. The instrument in its standard form comprises a sensor head and a system unit, and affords the flexibility to provide processed data in the form of the traditional scatter-plot representation separating neutron and γ-ray components, or the full, sampled pulse data itself. The instrument has been tested with an americium-beryllium source in three different shielding arrangements to replicate the case in which there are only neutrons, only γ rays and where both neutrons and γ-rays are present. The instrument is observed to return consistent results.

Published in:

Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2009 First International Conference on

Date of Conference:

7-10 June 2009