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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(11) [November 2012] >
| Title: | Measurement of high energy neutrons (E > 50 MeV) at electron accelerators of Indus accelerator complex using bismuth fission detectors |
| Authors: | Tripathy, S P
Verma, Dimple
Sunil, C
Haridas, G
Sarkar, P K |
| Keywords: | Indus accelerator
Neutron dosimetry
Bismuth fission track detector
Neutron fission
Photofission |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This paper reports
the measurement of high energy neutron component (E > 50 MeV) carried out at the Indus-1
(450 MeV) and Indus-2 (2.5 GeV) electron accelerators (RRCAT, Indore, India).
The study is based on the registration of neutron induced fission fragments
from bismuth radiators in the adjoint solid polymeric track detectors. These
bismuth fission detector (BFD) stacks are exposed at the injection septums of
booster synchrotron, Indus-1 and Indus-2 storage rings, where the possibility
of dose due to beam loss is expected to be maximum. The detection efficiency of
BFD is enhanced by enlarging the detector surface area and accordingly a large
area spark counter is fabricated for automatic and rapid counting of the track
densities. The dose equivalent rates are found to be about 0.11 mSv/h at the
booster synchrotron and the Indus-1 storage ring, and about 0.62-0.65 mSv/h at
the Indus-2 storage ring. |
| Page(s): | 843-846 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(11) [November 2012]
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