• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>INMM annual meeting >Performance Characteristics of a Third Generation Portable Radionuclide Identifier
【24h】

Performance Characteristics of a Third Generation Portable Radionuclide Identifier

机译：第三代便携式放射性核素识别器的性能特征

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The continuing need for a hand-held, portable radionuclide identifier for use in countering illicit nuclear trafficking and in positive identification of radioactive materials, benign or threat, has fostered the development of a next generation of instruments. Changes from the existing instrument have been made in response to the evolving needs of various users of the previous identifiers, but without reducing any performance with regard to ANSI N42.34. To address the requirements of front-line operators, the instrument was made significantly lighter and smaller, but the same HPGe gamma-ray detector crystal size has been retained, meaning previous performance data is still valid. In order to increase the ruggedness of the instrument the previous COTS PDA has been replaced with a custom, built-in processor. The instrument housing is now waterproof, with all connector apertures being sealed with plugs. The instrument capability has been improved by expanding the library to include nuclides recently adopted in medical procedures and encountered by reach-back teams, as well as other nuclides of interest identified during the millions of operating hours logged by the existing germanium-based identifiers. Battery lifetime was increased by using newer battery technology, new electronics for cooler controls and signal processing. The overall system has been further reduced in size and complexity by incorporating the battery charger internal to the instrument itself. The Detective family has already undergone extensive testing and the new instrument, the Micro-Detective, was subjected to some of the same tests. The results of testing with common gamma-ray sources and neutron sources is shown and compared with the results of previous instruments, showing compliance with ANSI N42.34.
机译：持续需要一种手持式便携式放射性核素识别符，以用于打击非法核贩运和积极识别放射性材料（良性或威胁性），从而促进了下一代仪器的开发。响应于先前标识符的各种用户的不断发展的需求，对现有工具进行了更改，但并未降低ANSI N42.34的性能。为了满足一线操作员的要求，该仪器制造得更轻，更小，但是保留了相同的HPGe伽马射线探测器晶体尺寸，这意味着以前的性能数据仍然有效。为了增加仪器的耐用性，以前的COTS PDA已被定制的内置处理器取代。仪器外壳现在是防水的，所有连接器孔都用塞子密封。通过扩展该库，包括最近在医疗程序中采用的，后备小组遇到的核素，以及在现有的基于锗的标识符记录的数百万个工作小时中发现的其他感兴趣的核素，仪器的能力得到了改善。通过使用更新的电池技术，用于冷却器控制和信号处理的新电子设备，可以延长电池寿命。通过将仪器内部集成的电池充电器，可以进一步减小整个系统的尺寸和复杂性。 “侦探”系列已经过广泛的测试，而新仪器“微型侦探”也经受了一些相同的测试。显示了使用普通伽玛射线源和中子源的测试结果，并将其与以前仪器的结果进行了比较，表明它们符合ANSI N42.34。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号