高密度高载钆闪烁玻璃的闪烁性能和中子探测性能研究  

Study of Scintillation and Neutron Detection Performance of Highly Gd-loaded and High-density Glass Scintillator

作　　者：殷生华 胡鹏 蔡华[2] 陈丹平[3] 韩纪锋[4] 何冬兵[3] 胡辰[5] 华哲浩 李帅奇 李溦长 刘珊 钱森[6] 秦来顺[8] 任晶[9] 宋瑞强 隋泽萱 孙心瑗[10] 唐高[8] 王志乐[11] 王梓然 温玉锋 杨冬 张明辉[5] 朱瑶[9] YIN Shenghua;HU Peng;CAI Hua;CHEN Danping;HAN Jifeng;HE Dongbing;HU Chen;HUA Zhehao;LI Shuaiqi;LI Weichang;LIU Shan;QIAN Sen;QIN Laishun;REN Jing;SONG Ruiqiang;SUI Zexuan;SUN Xinyuan;TANG Gao;WANG Zhile;WANG Ziran;WEN Yufeng;YANG Dong;ZHANG Minghui;ZHU Yao(China Nuclear(Beijing)Nuclear Instrument CO.,LTD,Beijing,100176,China;China building materials academy,Beijing,100024,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai,201800,China;Institute of Nuclear Science and Technology,Sichuan University,Chengdu,610064,China;Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai,201899,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing,100049,China;Beijing Glass Research Institute,Beijing,101111,China;College of Materials and Chemistry,China Jiliang University,Hangzhou,310018,China;College of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin,150001,China;Department of Physics,Jinggangshan University,Ji'an,343009,China;Research Center for Space Optical Engineering,Harbin Institute of Technology,Harbin,150001,China)

机构地区：[1]中核(北京)核仪器有限责任公司,北京100176 [2]中国建筑材料科学研究总院,北京100024 [3]中国科学院上海光学精密机械研究所,上海201800 [4]四川大学原子核科学技术研究所,成都610064 [5]中国科学院上海硅酸盐研究所,上海201899 [6]中国科学院高能物理研究所,北京100049 [7]北京玻璃研究院,北京101111 [8]中国计量大学,杭州310018 [9]哈尔滨工程大学,哈尔滨150001 [10]井冈山大学,吉安343009 [11]哈尔滨工业大学,哈尔滨150001

出　　处：《核电子学与探测技术》2024年第6期1034-1042,共9页Nuclear Electronics & Detection Technology

基　　金：国家重点研发计划资助项目(资助编号2023YFF0721700);核探测与核电子学国家重点实验室资助项目(资助编号SKLPDE-KF-202411);核探测与核电子学国家重点实验室资助项目(资助编号SKLPDE-ZZ-202212)。

摘　　要：闪烁玻璃可以通过改变玻璃基质成分和掺杂元素来调整其闪烁性能以及理化性质,是一种可适应多种应用场景的多功能闪烁材料。闪烁玻璃具有制备工艺相对简单,成本较低,成型加工性能优良、易于大批量生产和规模化生产等优点,在核辐射探测和高能物理实验中展现了巨大的应用潜力。为了研制满足核辐射探测以及高能物理实验需求的高性能闪烁玻璃材料(即高密度、较高光产额和快衰减),中国科学院高能物理研究所于2021年联合国内多家生产制备闪烁玻璃的高校,科研院所和核探测器研发企业,成立了闪烁玻璃研发合作组,推动高性能闪烁玻璃的研发和应用。本文基于闪烁玻璃合作组近期研发的高密度的高载钆含量的闪烁玻璃样品,探究了其闪烁性能,同时也研究了其对中子的响应,对高载钆闪烁玻璃在核辐射探测,特别是中子探测中的应用进行了初步的探索。研究表明本文测试的玻璃样品的密度能达到6g/cm^(3),光产额大于1000 ph/MeV,且衰减时间接近400 ns。另外玻璃样品能够探测到中子信号,但目前还无法实现有效的中子和伽马事例甄别。The scintillation performance and physicochemical properties of the glass scintillator can be tuned by changing the glass matrix composition and doping elements,making it a versatile scintillation material.In addition,glass scintillators have the advantages of relatively simple preparation process,low cost,excellent forming and processing performance,and ease of large-scale and industrial production,demonstrating great applications potential on nuclear radiation detection and high-energy physics experiments.In order to develop high-performance glass scintillator(i.e.,high density,moderate light yield,and fast decay),the Institute of High Energy Physics(IHEP),together with several domestic universities,institutes and nuclear detector development enterprises,established a Glass Scintillator R&D Collaboration(GS collaboration)to promote the research and application of high-performance scintillation glass since 2021.Based on the high-density glass scintillator samples with high Gd content prepared by the GS collaboration,this study explored their scintillation performance and capability of neutron detection,providing a preliminary research foundation for the application of highly Gd-loaded glass scintillators in neutron detection.Preliminary results show that the glass density can reach 6 g/cm^(3),the light yield is greater than 1000 ph/MeV and the decay time is close to 400 ns.In addition,the glass sample can detect signals from neutron reactions,but effective discrimination between neutron and gamma events has not yet been achieved.

关 键 词：闪烁玻璃 高Gd含量 闪烁性能 中子探测 

分 类 号：TL82[核科学技术—核技术及应用]