Optimizing resin shielding for neutron diffractometer detectors

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-02-25 DOI:10.1016/j.apradiso.2025.111755

Mohamed Hachouf, Naziha Benaskeur

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引用次数: 0

Abstract

In nuclear techniques, specific materials are used to shield detectors. For quick scan during kinetic analysis of materials, multi-detector systems are used in neutron diffraction where borated hydrogenated-materials are used to shield detectors from the neutron background. For shielding enhancement, the B₄C powder is eventually added for better protection. Then, neutron shielding calculations play a vital role in optimizing detector system design.

The present work aims to establish, by SCALE6.1 code simulation, some neutron shielding parameters of borated and non-borated resin. For an eventual use in the newly designed multi-detector system for Es-Salam neutron diffractometer, the simulation has been done for different monochromatic neutron-beams that can be used to investigate different structural properties of materials.

The neutron behavior of the C₅₇H₆₅O₁₀ resin without and with 5 wt% boron has been studied for different monochromatic neutron-beam. The backscattered neutron flux, the backscattering depth and the transmission-off thickness are analyzed and evaluated. They are reduced following the B₄C addition for each studied neutron-energy and a good diffraction data can be obtained. The obtained results permit to establish the corresponding shielding condition for an optimized design with the lowest mechanical loading on any neutron-scattering instrument detection-system.

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.