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| THPMA123 |
Analysis and Evaluation of Gamma and Neutron Dosimetry from 48 MeV 7Li on Natural Cu and its Dose Simulation with MCNP
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815 |
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- R. G. Sonkawade, P. K. Kumar, S. P. Lochab, B. S. Singh
IUAC, New Delhi
- R. V. Kolekar
Bhabha Atomic Research Centre, Mumbai
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Neutron and gamma angular radiation dose was measured from 48MeV, 7Li ion beam incident on natural thick copper target. Experiment is simulated keeping in view the health physics importance for monitoring the radiation environment in the charged particle accelerator. The neutron dose observed in the forward direction is slightly more compared to the lateral direction. Fast neutron dose was observed by using the 1mm polyethylene radiator in front of the CR-39 detectors and the thermal neutrons were observed using the Lithium Borate radiator. Neutron Spectra is observed using the BC501, with the Time of Flight experimental arrangement. The gamma dosimetry is done using the TLD and the active survey meters, gamma energy of the same reaction is also monitored in the same setup with the HPGe-detector. From the observed gamma spectrum, and the PACE calculation, the possible reactions were identified and correlated with the observed spectrum and the dose results. The neutron and gamma angular dose distribution observed will be discussed, as well an attempt is being made to simulate the same with MCNP and PACE simulation codes.
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