ORIGINAL RESEARCH article
Front. Energy Res.
Sec. Nuclear Energy
Volume 13 - 2025 | doi: 10.3389/fenrg.2025.1581903
This article is part of the Research TopicNovel Nuclear Reactors and Research Reactors, Volume IIView all articles
Deuterium tritium fusion experiment device radiation shielding analysis and optimization
Provisionally accepted
- Southwestern Institute of Physics, Chengdu, China
Select one of your emails
You have multiple emails registered with Frontiers:
Notify me on publication
Please enter your email address:
If you already have an account, please login
You don't have a Frontiers account ? You can register here
As deuterium-tritium (D-T) fusion experiments progress, radiation shielding is a fundamental requirement for ensuring personnel safety of fusion devices. This study utilizes neutronphoton coupling code to analyze the penetration of high-energy neutrons through various shielding materials in spatially constrained fusion experimental devices. The effectiveness of neutron shielding was evaluated through transmission factor measurements. Following the principle of "moderation before absorption," different material combinations were optimized to enhance neutron attenuation. Simulation results indicate that a three-layer shielding configuration (i.e., comprising tungsten carbide (WC, 30 cm), boron-doped polyethylene (PEB, 10 cm), and boron carbide (B 4 C, 10 cm)) provides shielding effectiveness nearly an order of magnitude higher than a 50 cm boron-doped PEB monolith, while exceeding the performance of a 50 cm WC monolith by 50%. Furthermore, verification through a plant neutron transport model confirmed consistency with simplified shielding calculation model simulation trends, validating the selection of optimized shielding materials. These results offer valuable insights for designing effective radiation shielding in future fusion reactor applications.
Keywords: Neutron shielding, Radiation Protection, multi-layer shielding, Monte Carlo simulation, Neutron analysis
Received: 23 Feb 2025; Accepted: 23 Apr 2025.
Copyright: © 2025 Zhao, wu, cao, Qu, zhang, zhao and yin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: xinghua wu, Southwestern Institute of Physics, Chengdu, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.