MARIA研究反应堆的源项估计和干沉降放射性核素大气扩散模型

IF 0.7 4区物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Nukleonika Pub Date : 2020-07-06 DOI:10.2478/nuka-2020-0028

M. Lipka

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引用次数: 1

摘要

摘要源项是指在特定时期内，从核反应堆释放到大气中的放射性核素活度（以贝克勒尔为单位）以及羽流成分。它是辐射防护相关计算的基础。通常，此类计算是使用商业代码进行的；然而，由于其独特的结构，它们在MARIA反应堆的情况下使用具有挑战性。因此，需要开发一种方法，尽管反应堆场地的几何形状复杂，但仍能提供有用的结果。本文提出了一种基于贝特曼平衡方程的方法，并给出了MARIA反应堆源项的计算结果。此外，还用干沉降高斯羽流模型分析了放射性核素在大气中的扩散。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Source term estimation for the MARIA research reactor and model of atmospheric dispersion of radionuclides with dry deposition

Abstract Source term is the amount of radionuclide activity, measured in becquerels, released to the atmosphere from a nuclear reactor, together with the plume composition, over a specific period. It is the basis of radioprotection-related calculation. Usually, such computations are done using commercial codes; however, they are challenging to be used in the case of the MARIA reactor due to its unique construction. Consequently, there is a need to develop a method that will be able to deliver useful results despite the complicated geometry of the reactor site. Such an approach, based upon the Bateman balance equation, is presented in the article, together with the results of source term calculation for the MARIA reactor. Additionally, atmospheric dispersion of the radionuclides, analysed with the Gauss plume model with dry deposition, is presented.

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来源期刊

Nukleonika 物理-无机化学与核化学

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.