• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual meeting of the Institute of Nuclear Materials Management >Research into Measured and Simulated Nondestructive Assay Data to Address the Spent Fuel Assay Needs of Nuclear Repositories
【24h】

Research into Measured and Simulated Nondestructive Assay Data to Address the Spent Fuel Assay Needs of Nuclear Repositories

机译：测量和模拟无损分析数据的研究，以满足核储存库的乏燃料分析需求

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

摘要

The Next Generation Safeguards Initiative Spent Fuel (NGSI-SF) Project started in 2009 with the intent to integrate nondestructive assay (NDA) signals in order to improve safeguards verification capabilities. This paper researches the integration of the following: (1) spectral-resolved passive gamma [~(154)Eu and ~(137)Cs], (2) total neutron and (3) Passive Neutron Albedo Reactivity (PNAR) in the context of encapsulation/repository facilities. For the first two NDA techniques listed, measured and simulated results are available, while for PNAR only simulated results are currently available. The measured results are from the Central Interim Storage Facility for Spent Nuclear Fuel (Clab) in Sweden where 50 spent fuel assemblies were measured in 2014 and 2015. The PNAR instrument is one of four non-traditional, spent fuel NDA techniques to be deployed at Clab in 2016 and 2017. The inclusion of these non-traditional instruments, capable of estimating properties such as within-assembly neutron multiplication, makes this research unique and offers promising improvements to the current safeguards toolkit. Goals of the NGSI-SF Project include: (1) verifying the initial enrichment, burnup, and cooling time of the facility declaration; (2) detecting diversion or replacement of pins, (3) estimating the plutonium mass. Additional project goals that are concurrent with SKB's interests are (4) estimating the decay heat, and (5) determining the multiplication/reactivity of spent fuel assemblies. In this paper, data mining techniques are applied to integrate both simulated and measured passive gamma and total neutron signals with the simulated PNAR signals to estimate various quantities for safeguards and non-safeguards purposes.
机译：下一代保障措施倡议乏燃料（NGSI-SF）项目于2009年启动，旨在整合无损检测（NDA）信号，以提高保障核查能力。本文研究以下内容的集成：（1）光谱分辨被动伽玛[〜（154）Eu和〜（137）Cs]，（2）总中子和（3）被动中子反照率反应性（PNAR）封装/存储库设施。对于列出的前两种NDA技术，可获得测量和模拟结果，而对于PNAR，当前仅可获得模拟结果。测得的结果来自瑞典的废核燃料中央临时存储设施（Clab），2014年和2015年对50个乏燃料组件进行了测量。PNAR仪器是四种非传统的乏燃料NDA技术之一，将在在2016年和2017年进行了实验室研究。这些非传统仪器的加入能够估算组件内部中子倍增等性质，这使这项研究具有独特性，并为当前的保障措施工具包提供了可喜的改进。 NGSI-SF项目的目标包括：（1）验证设施申报的初始浓缩，燃尽和冷却时间; （2）检测销的转移或更换，（3）估算mass的质量。与SKB利益相关的其他项目目标是（4）估算衰变热，以及（5）确定乏燃料组件的增殖/反应性。在本文中，数据挖掘技术被应用于将模拟和测量的被动伽玛和总中子信号与模拟的PNAR信号进行集成，以估计各种数量的保障措施和非保障措施。

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