Radiation hardness study of liquid scintillator under 80 MeV proton beam irradiations

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-02-04 DOI:10.1016/j.nimb.2025.165628

Wenbao Qu , Haisheng Song , Boxiang Yu , Zhixin Tan , Yuhang Guo , You Lv , Hantao Jing , Ruirui Fan , Shuaishuai Ren , Tao Hu

{"title":"Radiation hardness study of liquid scintillator under 80 MeV proton beam irradiations","authors":"Wenbao Qu , Haisheng Song , Boxiang Yu , Zhixin Tan , Yuhang Guo , You Lv , Hantao Jing , Ruirui Fan , Shuaishuai Ren , Tao Hu","doi":"10.1016/j.nimb.2025.165628","DOIUrl":null,"url":null,"abstract":"<div><div>For monitoring the 1.6 GeV high-energy proton beam, used in the CSNS Phase II upgrade project, a liquid scintillator (LS) detector has become a viable option due to its excellent radiation hardness and the possibility of exchanging the LS remotely. This work investigates the effects of radiation damage on LS samples based on linear alkylbenzene (LAB) induced by 80 MeV protons. The study includes absorption, fluorescence spectroscopy, and light output measurement of the LS before and after proton irradiation, with a focus on determining the radiation resistance threshold of the LS. The results show that the performance of the LS is not affected at absorbed doses up to 2.44 <span><math><mo>×</mo></math></span> <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> Gy. This demonstrates its ability to absorb 8.82 <span><math><mo>×</mo></math></span> <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>12</mn></mrow></msup></mrow></math></span> p/cm<sup>2</sup> 1.6 GeV protons and remain stable. This suggests that a detector based on LS could potentially be used for monitoring the high-energy proton beam of 1.6 GeV in the CSNS Phase II Upgrade Project.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"561 ","pages":"Article 165628"},"PeriodicalIF":1.4000,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168583X25000187","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

For monitoring the 1.6 GeV high-energy proton beam, used in the CSNS Phase II upgrade project, a liquid scintillator (LS) detector has become a viable option due to its excellent radiation hardness and the possibility of exchanging the LS remotely. This work investigates the effects of radiation damage on LS samples based on linear alkylbenzene (LAB) induced by 80 MeV protons. The study includes absorption, fluorescence spectroscopy, and light output measurement of the LS before and after proton irradiation, with a focus on determining the radiation resistance threshold of the LS. The results show that the performance of the LS is not affected at absorbed doses up to 2.44

\times

1 0^{3}

Gy. This demonstrates its ability to absorb 8.82

\times

1 0^{12}

p/cm² 1.6 GeV protons and remain stable. This suggests that a detector based on LS could potentially be used for monitoring the high-energy proton beam of 1.6 GeV in the CSNS Phase II Upgrade Project.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.