Feasibility study for establishing a linear and wide range neutron dosimetry field based on MNSR neutron radiography beamline

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL Radiation Physics and Chemistry Pub Date : 2025-01-25 DOI:10.1016/j.radphyschem.2025.112562

Afrouz Asgari , Seyed Abolfazl Hosseini , Mohammad Hosein Choopan Dastjerdi , Javad Mokhtari

{"title":"Feasibility study for establishing a linear and wide range neutron dosimetry field based on MNSR neutron radiography beamline","authors":"Afrouz Asgari , Seyed Abolfazl Hosseini , Mohammad Hosein Choopan Dastjerdi , Javad Mokhtari","doi":"10.1016/j.radphyschem.2025.112562","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigated the possibility of establishing a linear neutron dosimetry field by using reactor power changes at the Isfahan miniature neutron source reactor (MNSR). In this way, the linear response of the instrument indicating the reactor power has been assessed using reactor power changes. The linear response of the instrument indicating the reactor power, i.e., the fission chamber (FC) neutron detectors in the reactor core, was investigated experimentally using out-of-core dosimetry by both active and passive dosimeters. The results showed that the FC neutron detectors used in MNSR displayed a linear and consistent response in indicating a power range of 1.5 W–30 kW that is equal to the neutron dose range from 0.5 μSv/h to 9.5 mSv/h at the outlet of the neutron beamline. Consequently, it can be concluded that the MNSR beamline is suitable for establishing a linear and wide dosimetry field.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"230 ","pages":"Article 112562"},"PeriodicalIF":2.8000,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Physics and Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0969806X25000544","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

This study investigated the possibility of establishing a linear neutron dosimetry field by using reactor power changes at the Isfahan miniature neutron source reactor (MNSR). In this way, the linear response of the instrument indicating the reactor power has been assessed using reactor power changes. The linear response of the instrument indicating the reactor power, i.e., the fission chamber (FC) neutron detectors in the reactor core, was investigated experimentally using out-of-core dosimetry by both active and passive dosimeters. The results showed that the FC neutron detectors used in MNSR displayed a linear and consistent response in indicating a power range of 1.5 W–30 kW that is equal to the neutron dose range from 0.5 μSv/h to 9.5 mSv/h at the outlet of the neutron beamline. Consequently, it can be concluded that the MNSR beamline is suitable for establishing a linear and wide dosimetry field.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

求助全文

约1分钟内获得全文去求助

来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. 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. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.