Title :
The design, build and test of a digital analyzer for mixed radiation fields
Author :
Joyce, M.J. ; Aspinall, M.D. ; Cave, F.D. ; Georgopoulos, K. ; Jarrah, Z.
Author_Institution :
Dept. of Eng., Lancaster Univ., Lancaster, UK
Abstract :
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.
Keywords :
liquid scintillation detectors; radiation detection; americium-beryllium source; digital analyzer design; digital analyzer test; gamma-ray component; mixed radiation field; neutron component; organic liquid scintillator; real-time discrimination; scatter-plot representation; Digital systems; Humans; Inductors; Instruments; Neutrons; Protection; Scintillation counters; Solid scintillation detectors; Strips; Testing; Digital systems; Gamma rays; Neutrons; Nuclear measurements;
Conference_Titel :
Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2009 First International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4244-5207-1
Electronic_ISBN :
978-1-4244-5208-8
DOI :
10.1109/ANIMMA.2009.5503698