KUANS对三亚甲基冷减速剂的改进

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-09-21 DOI:10.3233/jnr-220023

S. Tasaki, Hiroaki Yamakawa, Yutaka Abe

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引用次数: 0

摘要

从两个方面改进了堪萨斯州均三甲苯冷慢化剂的中子强度。一个是通过退火改变均三甲苯相，另一个是构型的优化。通过将均三甲苯的温度保持在略低于其熔点几个小时来进行均三甲苯相的改变。它使冷中子强度比正常冷却的均三甲苯高出约20%。对于构型优化，使用蒙特卡罗程序选择了给出最高冷中子强度的布置。用这种布置测量的冷中子强度表明，它的强度是室温下聚乙烯慢化剂的3.4倍。

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Improvement of the mesitylene cold moderator at KUANS

The improvement of the neutron intensity of mesitylene cold moderator in KUANS has been conducted in two ways. One is the change of the mesitylene phase by annealing and the other is the optimization of the configuration. The change of the phase of the mesitylene was conducted by keeping the temperature of mesitylene just below its melting point for several hours. It made the cold neutron intensity about 20% larger than that of normally cooled mesitylene. For the configurational optimization, an arrangement giving highest cold neutron intensity was chosen using a Monte Carlo code. The cold neutron intensity measured with this arrangement revealed that its intensity is 3.4 times higher than that for a polyethylene moderator with room temperature.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.