Investigation and Simulation of Gamma-Neutron Shielding for Nuclear- Pumped Lasers

Shamsinasab, Mehrdad; Asgari, Mansour; Eshghi, Mahdi

doi:10.22034/rpe.2023.396172.1134

Document Type : Research Article

Authors

Department of Physics‎, ‎Imam Hossein Comprehensive University‎, ‎Tehran‎, ‎Iran

https://doi.org/10.22034/rpe.2023.396172.1134

Abstract

Nuclear-pumped lasers (NPL) are lasers that excite the active laser environment caused by nuclear reaction. Such lasers need ionizing radiation shielding for mixed neutron and gamma fields. In this work, a shielding system for NPL was designed which using ¹⁰B(n,α)⁷Li. In this simulation, we have used MCNPX 2.6.0 Monte Carlo code and the thermal neutron flux as 1×10¹⁶ n.cm^-2.s^-1 for excitation reaction. Such a large neutron flux can be obtained from a reactor source or a heavy ion accelerator. For this work, 10B fuel is covered on the surface of a rectangular cube aluminum shell by using the Monte Carlo method. In the design of the shielding, combinations with different materials have been used with various arrangements in three layers. According to the simulation, the arrangement of Fe₂-B-BPE-Pb is a suitable protection compound for such lasers.

Highlights

We have simulated a shielding system for Nuclear-pumped lasers by using the MCNPX code.
We have obtained a suitable protection compound as Fe₂B-BPE-Pb for such lasers.
The total dose rate due to neutrons and gamma in the arrangement of different materials in compounds was calculated.

Keywords

References

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Radiation Physics and Engineering

Investigation and Simulation of Gamma-Neutron Shielding for Nuclear- Pumped Lasers

References

References

Volume 5, Issue 1
January 2024
Pages 41-47

Investigation and Simulation of Gamma-Neutron Shielding for Nuclear- Pumped Lasers

References

References

Volume 5, Issue 1January 2024Pages 41-47

Volume 5, Issue 1
January 2024
Pages 41-47