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1. 发明申请

WO1997032221A2 BETA PARTICLE MONITOR FOR SURFACES 审中-公开
标题翻译：表面颗粒监测仪
公开(公告)号：WO1997032221A2
公开(公告)日：1997-09-04
申请号：PCT/US1997002816
申请日：1997-02-25
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , MACARTHUR, Duncan, W.
发明人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
IPC分类号： G01T00/00
CPC分类号： G01T7/06
摘要： A beta radiation detector which is capable of reliably detecting beta radiation emitted from a surface. An electrically conductive signal collector is adjustably mounted inside an electrically conductive enclosure which may define a single large opening for placing against a surface. The adjustable mounting of the electrically conductive signal collector can be based on the distance from the surface or on the expected beta energy range. A voltage source is connected to the signal collector through an electrometer or other display means for creating an electric field between the signal collector and the enclosure. Air ions created by the beta radiation are collected and the current produced is indicated on the electrometer or other display means.
摘要翻译：一种能够可靠地检测从表面发射的β辐射的β辐射检测器。导电信号收集器可调节地安装在导电外壳内，其可以限定用于放置在表面上的单个大开口。导电信号收集器的可调整安装可以基于距表面的距离或预期的β能量范围。电压源通过静电计或其它显示装置连接到信号收集器，用于在信号收集器和外壳之间产生电场。收集由β辐射产生的空气离子，并且产生的电流在静电计或其他显示装置上指示。

2. 发明申请

WO1997045754A1 APPARATUS FOR DETECTING ALPHA RADIATION IN DIFFICULT ACCESS AREAS 审中-公开
标题翻译：用于检测不正常访问区域中的ALPHA辐射的装置
公开(公告)号：WO1997045754A1
公开(公告)日：1997-12-04
申请号：PCT/US1997009576
申请日：1997-05-29
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , STEADMAN, Peter, A. , MACARTHUR, Duncan, W.
发明人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
IPC分类号： G01T01/18
CPC分类号： G01T1/18
摘要： An electrostatic alpha radiation detector for measuring alpha radiation emitted from inside an enclosure (11) comprising an electrically conductive expandable electrode (ECEE) (13) for insertion into the enclosure. After insertion, the ECEE is insulated from the enclosure and defines a decay cavity (11a) between the ECEE and the enclosure so that air ions (14) generated in the decay cavity are electrostatically captured by the ECEE and the enclosure when an electric potential is applied between the ECEE and the enclosure.
摘要翻译：一种用于测量从外壳（11）内部发射的α辐射的静电α辐射检测器，包括用于插入外壳的导电可扩张电极（ECEE）（13）。插入后，ECEE与外壳绝缘，并且在ECEE和外壳之间限定了一个衰减腔（11a），使得在衰减腔中产生的空气离子（14）在ECEE和外壳中静电捕获，当电位为应用于ECEE和外壳之间。

3. 发明申请

WO1998028635A1 GAMMA RAY DETECTOR 审中-公开
公开(公告)号：WO1998028635A1
公开(公告)日：1998-07-02
申请号：PCT/US1997023672
申请日：1997-12-18
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , KOSTER, James, E. , WALTERS, Steven, G. , MACARTHUR, Duncan, W.
发明人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
IPC分类号： G01T01/185
CPC分类号： G01T1/185
摘要： A gamma detector (10) comprises a sealed electrically conductive enclosure (11) defining a cavity (11a) filled with a gas, and with signal collection means (12) insulatively mounted in the cavity (11a) and positioned to substantially span the cavity (11a) so that gas ions generated in the cavity (11a) as a result of gamma ray interaction are electrostatically captured by the signal collection means (12) when an electric potential is applied between the electrically conductive enclosure (11) and the signal collection means (12). Indicator means (19) are attached to the signal collection means (12) for indicating an electrical current produced by collection of gas ions generated in the cavity (11a) by gamma rays in the cavity (11a). A voltage source (18) is connected between the indicator means (19) and the electrically conductive enclosure (11) to provide the electrical potential for collection of the gas ions.
摘要翻译：伽马检测器（10）包括密封的导电外壳（11），其限定填充有气体的空腔（11a），以及信号收集装置（12），绝缘地安装在空腔（11a）中并且定位成基本上跨越空腔 11a），使得当在导电外壳（11）和信号收集装置（11）之间施加电位时，由于伽马射线相互作用而在空腔（11a）中产生的气体离子被信号采集装置（12）静电捕获，（12）。指示装置（19）附接到信号收集装置（12），用于指示通过在空腔（11a）中的伽马射线收集在空腔（11a）中产生的气体离子而产生的电流。电压源（18）连接在指示器装置（19）和导电外壳（11）之间，以提供用于收集气体离子的电势。

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