18O（p,xn）反应的二次中子谱和总产率的测量

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL Radiation Physics and Chemistry Pub Date : 2024-12-12 DOI:10.1016/j.radphyschem.2024.112431

Marek Zmeškal, Michal Košt’ál, Ondřej Lebeda, Václav Zach, Radomír Běhal, Tomáš Czakoj, Jan Šimon, Evžen Novák, Zdeněk Matěj

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引用次数: 0

摘要

氟-18的产生代表了一个强大的中子来源。它的特性引起了社区和进一步应用的兴趣。用二苯乙烯闪烁光谱法测定了质子在富18o水靶上反应的次中子在10个不同角度的中子能谱。用锰浴法测定同一靶的绝对中子产率为2.15×1010/μC。给出了所得的中子谱和角相关产率。实验数据与模拟数据的比较显示只有有限的一致性。JENDL-5对正角中子能谱的预测效果最好，而TENDL-2021对绝对角度相关中子产率的预测效果最好。

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Measurement of secondary neutron spectra and the total yield from 18O(p,xn) reaction

The production of fluorine-18 represents a strong source of neutrons. Its characteristics are of interest for the community and for further applications. The neutron spectra of secondary neutrons from the reactions of protons on a 18O-enriched water target were acquired at ten different angles with stilbene scintillation spectrometry. The absolute neutron yield from the same target was measured using the manganese bath technique and found to be 2.15×1010/μC. The obtained neutron spectrum and angle-dependent yield are presented. Comparison of the experimental data with simulations revealed only limited agreement. JENDL-5 shows the best agreement for the neutron spectra in forward angles, while TENDL-2021 gives the best prediction of the absolute angle-dependent neutron yield.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.