仪器中子活化分析中高锰含量样品中子通量抑制的实验验证

IF 1.5 3区 化学 Q3 CHEMISTRY, ANALYTICAL Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-08-03 DOI:10.1007/s10967-024-09671-8
Lukas-Morris Schramm, Markus Nemetz, Franz Renz, Bin Feng, Georg Steinhauser
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引用次数: 0

摘要

仪器中子活化分析(INAA)依赖于整个活化样品中恒定的中子通量密度。尽管这一概念适用于大多数典型样品,但样品中偶尔存在的高中子吸收核素可能会导致中子通量密度抑制,最终导致 INAA 结果失真。在这里,我们研究了锰(Mn)含量较高的人造样品。通过添加金水溶液,我们在样品中引入了液态原位中子通量监测器。锰含量≤50%对内部中子通量密度的影响很小,但当锰含量达到63.2%时,通量会被抑制约20%。
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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Experimental validation of the neutron flux suppression in samples with high manganese content in instrumental neutron activation analysis

Instrumental neutron activation analysis (INAA) relies on constant neutron flux densities throughout the activated samples. Although this concept is true for most typical samples, occasionally, the presence of highly neutron absorbing nuclides in the sample may cause a neutron flux density suppression which would ultimately lead to distorted results in the INAA. Here, we have investigated artificial samples with a high manganese (Mn) content. By adding aqueous gold solution, we introduced a liquid in-situ neutron flux monitor into the sample. An Mn content ≤ 50% shows little effect to the internal neutron flux density, however, the flux can be suppressed by ca. 20% when the Mn content reaches 63.2%.

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来源期刊
CiteScore
2.80
自引率
18.80%
发文量
504
审稿时长
2.2 months
期刊介绍: An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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