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- Title
Measurement of peak fluence of neutron beams using Bi-fission detectors.
- Authors
JAIN, R; KUMAR, ASHOK; SINGH, N; TOMMASINO, L; SINGH, B
- Abstract
Fission fragments and other charged particles leave tracks of permanent damage in most of the insulating solids. Damage track detectors are useful for personal dosimeters and for flux/dose determination of high-energy particles from accelerators or cosmic rays. A detector that has its principal response at nucleon energy above 50 MeV is provided by the fission of Bi-209. Neutrons produce the largest percentage of hadron dose in most high-energy radiation fields. In these fields, the neutron spectrum is typically formed by low-energy neutrons (evaporation spectrum) and high-energy neutrons (knock-on spectrum). We used Bi-fission detectors to measure neutron peak fluence and compared the result with the calculated value of neutron peak fluence. For the exposure to 100 MeV we have used the iThemba Facility in South Africa.
- Subjects
NATURAL nuclear reactors; NEUTRON beams; FISSION products; INSULATING materials; COSMIC ray neutrons; SPECTRUM analysis
- Publication
Pramana: Journal of Physics, 2012, Vol 78, Issue 3, p493
- ISSN
0304-4289
- Publication type
Article
- DOI
10.1007/s12043-011-0236-7