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Scoring analysis of design, verification and optimization of high intensity positron source (HIPOS)

机译：高强度正电子源（HIPOS）设计，验证和优化的评分分析

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摘要

As part of an exploratory research project at the Institute for Energy (Joint Research Centre of the European Commission), a feasibility assessment was performed for the design and construction of a high-intensity positron facility (HIPOS) in a neutron beam tube, HB9, at the High Flux Reactor (HFR) in Petten. The full model of reactor core, reflector and reactor instrumentation at the neutron beam line HB9 were modeled and full neutronic and photonic calculations were carried out by MCNP4C3. The source file was generated in two formats: SDEF and WESSA. Consequently, two different codes were used for scoring analysis for the optimization of the concept and geometry of positron generator. The main concept including key design parameters have been evaluated independently by two computer codes, in particular MCNP-X and GEANT4. The parametric design analysis including the optimization of positron generator at the pre-selected neutron beam line is reported in this paper. The detailed assessment of the critical design parameters, specifically from technological point of view is summarised. The results of independent analysis confirmed that the best approach is to combine two concepts of positron generation, which are based on the exploiting of neutron and gamma radiation. The results verified that the proposed concept can reach the defined threshold of the positron yield and the positron beam can reach an intensity of 10~(13) e~+/sec (un-moderated). The details of completed work are reported in this paper.
机译：作为能源研究所（欧盟委员会联合研究中心）的一项探索性研究项目的一部分，对中子束管HB9中的高强度正电子设施（HIPOS）的设计和建造进行了可行性评估。在佩滕的高通量反应堆（HFR）中。对中子束线HB9上反应堆堆芯，反射器和反应堆仪器的完整模型进行建模，并通过MCNP4C3进行完整的中子学和光子计算。源文件以两种格式生成：SDEF和WESSA。因此，两个不同的代码用于评分分析，以优化正电子发生器的概念和几何形状。包括关键设计参数的主要概念已经通过两个计算机代码（尤其是MCNP-X和GEANT4）进行了独立评估。本文报道了包括预选中子束线正电子发生器优化在内的参数设计分析。总结了对关键设计参数的详细评估，尤其是从技术的角度。独立分析的结果证实，最好的方法是结合正电子产生的两个概念，这是基于对中子和伽马射线的利用。结果证明，所提出的概念可以达到规定的正电子屈服阈值，并且正电子束的强度可以达到10〜（13）e〜+ / sec（未调节）。本文报告了已完成工作的详细信息。

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  • 来源
  • 会议地点 Smolenice Castle(SK)
  • 作者

    A. Zeman; K. Tucek; G. Daquino; L. Debarberis; A. Hogenbirk;

  • 作者单位

    European Commission, Joint Research Centre, Institute for Energy, P.O. Box 2, NL-1755, ZG Petten, The Netherlands,International Atomic Energy Agency, P.O. Box 100, A-1400 Vienna, Austria;

    European Commission, Joint Research Centre, Institute for Energy, P.O. Box 2, NL-1755, ZG Petten, The Netherlands;

    European Commission, Joint Research Centre, Institute for Energy, P.O. Box 2, NL-1755, ZG Petten, The Netherlands;

    European Commission, Joint Research Centre, Institute for Energy, P.O. Box 2, NL-1755, ZG Petten, The Netherlands;

    Nuclear Research and consultancy Group (NRG), P.O. Box 25, NL-1755 ZG Petten, The Netherlands;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    high intensity positron source; high flux research reactor; Monte Carlo simulation;

    机译：高强度正电子源；高通量研究堆蒙特卡洛模拟;

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