固体气泡损伤探测器探测高能重离子的研究  

Registration of high energy heavy ion tracks in bubble detectors

作　　者：郭士伦[1] 李丽[1] 郭洪英[1] 涂彩清[1] 王玉兰[1] DokeT KatoT OzakiK KyanA PiaoY MurakamiT 

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413 [2]AdvancedResearchCenterforScienceandEngineering,WasedaUniversity,Tokyo,Japan [3]NationalInstituteofRadiologicalScience,Chiba,Japan

出　　处：《核技术》1999年第7期399-401,共3页Nuclear Techniques

基　　金：国家自然科学基金!1880158;核工业科学基金!J7197F0122

摘　　要：用高能重离子Ar和C进行的实验表明：（1）高能重离子可以在固体气泡损伤探测器中产生径迹，重离子径迹呈直线形，由一连串微小气泡组成；（2）固体气泡损伤探测器探测重离子具有阈特性，阈的实质近似为临界能量损失率（dE／dX）C，这一阈特性与蚀刻径迹探测器类似。固体气泡损伤探测器的阈值为（dE／dX）c=2220MeV／g·cm2，可用于重离子物理、宇宙射线和宇宙暗物质探测以及癌症治疗模拟等领域。Studies on high energy heavy ions Ar and C demonstrate that: (1)Bubbledetectors can be used to detect high energy heavy ion tracks. Each track is composedof a line of bubbles along the trajectory of the heavy ion; (2) Bubble detctor is a typeof threshold detector for heavy ions. The essence of the threshold is approximatelycritical energy loss rate (dE/dX)c, which is similar to that of track detectors. For ourbubble detectors it is 2220MeV/g cm2. The bubble detectors can be used in heavyion physics, cosmic ray physics, cold dark matter detection and cancer therapysimulation.

关 键 词：固体气泡损伤 探测器 高能重离子径迹 阈特性 

分 类 号：TL815[核科学技术—核技术及应用]