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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(11) [November 2012] >
| Title: | Simulation of absorbed dose rate due to synchrotron radiation and shielding thickness for radiation safety at INDUS-2 using FLUKA |
| Authors: | Sahani, P K
Haridas, G
Sarkar, P K |
| Keywords: | Synchrotron radiation
Shielding hutch
FLUKA |
| Issue Date: | Nov-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Indus-2 is a 2.5 GeV
electron synchrotron radiation source at Raja Ramanna Centre for Advanced
Technology (RRCAT), India. 26 synchrotron radiation (SR) beam lines are planned
in Indus-2 for various research applications, Out of 26 several beam lines are
in operation and many are in installation stage. Due to intense flux of SR and
low energy, the dose rate in the direct beam is high and there is a potential
for high radiation exposure. Appropriate shielding hutches are needed to house
the beam lines and protect the workers from the radiation hazard. Simulations
were carried out using computer code FLUKA to find out the absorbed dose in
water due to SR and required shielding thickness in the forward direction to
reduce dose within acceptable limits. SR spectrum from Indus-2 in the range
4-100 keV was used for simulating absorbed dose and shielding thickness. It was
found that the absorbed dose rate is of the order of 105 Gy/h for
the design parameters of Indus-2 (2.5 GeV and 300 mA). Forward shielding
thickness of 3mm lead was found to be sufficient to reduce the dose rate to
acceptable level for continuously occupied area (<1µSv/h). The details of
the simulation and results are presented in the paper. |
| Page(s): | 818-820 |
| 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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