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首页> 外文期刊>Nuclear Technology >Startup Test Plan and Predictions for Highly Enriched Uranium to Low-Enriched Uranium Fuel Conversion at the University of Missouri Research Reactor
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Startup Test Plan and Predictions for Highly Enriched Uranium to Low-Enriched Uranium Fuel Conversion at the University of Missouri Research Reactor

机译：在密苏里州大学研究反应堆中对高富集铀的启动测试计划和预测，在密苏里大学的铀燃料转换

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摘要

Nonpower reactors licensed by the U.S. Nuclear Regulatory Commission require a startup test plan as part of any facility modification to verify operability prior to resumption of operations. In order to support conversion of the University of Missouri Research Reactor from the use of highly enriched uranium to low-enriched uranium (LEU) fuel, a startup test plan has been devised to measure certain reactor physics parameters for the initial all-fresh LEU core licensing documentation that will be submitted. These parameters include the approach to critical, primary coolant void coefficient of reactivity, flux trap void coefficient of reactivity, determination of flux trap sample reactivity worth, radial and axial thermal neutron flux mapping, control blade worth calibration, primary and pool coolant temperature coefficient of reactivity, and flux mapping of experimental positions. In this paper, predictions for these parameters made using the Monte Carlo N-Particle Version 5 (MCNP5) radiation transport code are reported. These predictions will support the startup tests by providing a baseline set of expectations and additional insight into the performance of the LEU core.
机译：美国核监管委员会许可的非功率反应堆要求启动测试计划作为任何设施修改的一部分，以验证在恢复业务之前的可操作性。为了支持密苏里州大学研究反应堆的转换从使用高度富集的铀，以低富富铀（leu）燃料，已经设计了一个启动测试计划，以测量初始全新Leu核心的某些反应堆物理参数将提交的许可文档。这些参数包括对临界，主要冷却剂的反应性的方法，磁通捕集空隙系数的反应性，磁通阱样品反应性的测定值，径向和轴向热中子通量映射，控制刀片值得校准，初级和池冷却剂温度系数实验位置的反应性和助焊剂映射。在本文中，报告了使用蒙特卡罗N粒子5（MCNP5）辐射传输代码的这些参数的预测。这些预测将通过提供基准的期望集和额外了解Leu核心的性能来支持启动测试。

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  • 来源
    《Nuclear Technology》 |2021年第10期|1538-1563|共26页
  • 作者

    Wilson Cowherd; John Stillman; Leslie Foyto; Erik Wilson; Kiratadas Kutikkad; Nickie Peters; John Gahl;

  • 作者单位

    University of Missouri Research Reactor Columbia Missouri;

    Argonne National Laboratory Nuclear Science & Engineering Division Research and Test Reactor Department Lemont Illinois;

    University of Missouri Research Reactor Columbia Missouri;

    Argonne National Laboratory Nuclear Science & Engineering Division Research and Test Reactor Department Lemont Illinois;

    University of Missouri Research Reactor Columbia Missouri;

    University of Missouri Research Reactor Columbia Missouri;

    University of Missouri Research Reactor Columbia Missouri;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Low-enriched uranium; conversion; startup; MCNP; reactivity;

    机译：富含低铀;转换;启动;MCNP;反应性;

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