Alpha contamination monitoring system

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-01-28 DOI:10.1016/j.nima.2025.170271

E. El Haber , C. Mahé , J. Venara , L. Fleres , M. Cuozzo , Z. El Bitar

{"title":"Alpha contamination monitoring system","authors":"E. El Haber , C. Mahé , J. Venara , L. Fleres , M. Cuozzo , Z. El Bitar","doi":"10.1016/j.nima.2025.170271","DOIUrl":null,"url":null,"abstract":"<div><div>Alpha contamination monitoring at the exit of radiological controlled areas presents significant challenges, often inadequately addressed by traditional proximity-based alpha detectors. This study introduces an optical detection system that uses the radio-luminescence of nitrogen in ambient air, induced by alpha particles, to remotely detect alpha emitters by measuring UV photon emissions. The system features a light-tight enclosure with a UV detector, mounted on an optical reflector, to enhance the detection of alpha contamination on objects such as helmets and hand tools from a distance. The system's effectiveness has been demonstrated in experiments using sealed radioactive sources and through Monte Carlo simulations and theoretical predictions. The optical detection system successfully detected a 3270Bq alpha source from 52 cm under light-tight conditions in 30 s.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170271"},"PeriodicalIF":1.5000,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168900225000725","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}

引用次数: 0

Abstract

Alpha contamination monitoring at the exit of radiological controlled areas presents significant challenges, often inadequately addressed by traditional proximity-based alpha detectors. This study introduces an optical detection system that uses the radio-luminescence of nitrogen in ambient air, induced by alpha particles, to remotely detect alpha emitters by measuring UV photon emissions. The system features a light-tight enclosure with a UV detector, mounted on an optical reflector, to enhance the detection of alpha contamination on objects such as helmets and hand tools from a distance. The system's effectiveness has been demonstrated in experiments using sealed radioactive sources and through Monte Carlo simulations and theoretical predictions. The optical detection system successfully detected a 3270Bq alpha source from 52 cm under light-tight conditions in 30 s.

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

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.