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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Neutronic design study of accelerator driven system (ADS) for Jordan subcritical reactor as a neutron source for nuclear research
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Neutronic design study of accelerator driven system (ADS) for Jordan subcritical reactor as a neutron source for nuclear research

机译：Jordan亚临界反应器加速器驱动系统（广告）中子设计研究作为核研究的中子源

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摘要

Abstract In this paper, a preliminary neutronic design study of an accelerator driven subcritical system for Jordan Subcritical Assembly (JSA) is presented. The conceptual design of coupling the JSA core with proton accelerator and spallation target is investigated, and its feasibility as a neutron source for nuclear research, and possibly for target irradiation and isotope production evaluated. 3D MCNPX model of the JSA reactor, the accelerator beam, and the Pb target was developed, based on actual reactor parameters. MCNPX calculations were carried out to estimate the absolute radial and axial neutron flux in the reactor, and to calculate the multiplication factor K eff and heat generated in the reactor. Numerical results showed an enormous increase in the neutron flux, by seven orders of magnitude, compared to the current JSA core design using Pu-Be source. In this research the results obtained are discussed and compared with those of the JSA, and do confirm the feasibility of utilizing the JSA as a viable nuclear research facility with adequate neutron flux. Highlights ? A proton is accelerator is coupled to a subcritical assembly with Pb target. ? The spallation neutron source is investigated. ? 3-D Monte Carlo simulating of radiation transport is performed for the system. ? The neutron flux showed an increase of seven orders of magnitude compared to the current JSA Pu-Be source driven core.
机译：摘要在本文中，提出了一个初步中子设计研究，加速器驱动的约旦亚临界组件（JSA）的驱动子临界系统。研究了用质子加速器和剥落目标耦合JSA核心的概念设计，其可行性作为核研究的中子源，并且可能评估目标辐照和同位素生产。基于实际的反应器参数，开发了JSA反应器，加速器光束和PB目标的3D MCNPX模型。进行MCNPX计算以估计反应器中的绝对径向和轴向中子通量，并计算反应器中产生的倍增因子K EFF和热量。与当前JSA核心设计相比，数值结果表明中子磁通量巨大增加，与使用PUS源的当前JSA核心设计相比。在本研究中，获得的结果是与JSA的结果进行了讨论，确实确认利用JSA作为具有足够中子通量的可行核研究设施的可行性。强调 ？质子是加速器耦合到具有PB靶的亚临界组件。还研究了介质中子源。还3-D蒙特卡罗模拟辐射输送的辐射传输。还与当前的JSA PU是源驱动芯相比，中子通量显示出7个数量级。

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