A reduced-volume manganese bath facility for low emission rate neutron source measurement at CIAE

IF 1.6 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-09-01 DOI:10.1007/s10967-025-10339-0

Haixian Zhang, Yina Liu, Chunjuan Li, Mingzhe Song, Zhiqiang Wang, Xinyu Xu, Hailong Luo

引用次数: 0

Abstract

The CIAE manganese bath facility has been employed to measure the emission rate of a radionuclide neutron source in 5 × 10⁵s⁻¹ ~ 1 × 10⁹s⁻¹ for nearly forty years. In order to measure neutron sources with lower emission rate, a reduced-volume manganese bath facility was developed. By reducing the bath radius to increasing the specific activity of the solution, the emission rate of neutron sources which is nearly an order of magnitude lower than the previous manganese bath can be measured by the reduced-volume manganese bath system. Two neutron sources with lower emission rates which were 4.09 × 10⁴ s⁻¹ and 1.75 × 10⁵ s⁻¹ with an uncertainties of < 1.5% (k = 1) have been measured with the new bath.

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中国科学院用于低发射率中子源测量的小体积锰浴装置

近四十年来，CIAE的锰浴设备一直用于测量5 × 105s−1 ~ 1 × 109s−1的放射性核素中子源的发射率。为了测量低发射率的中子源，研制了小体积锰浴装置。通过减小锰浴半径来提高溶液的比活度，通过减小锰浴体积系统可以测量到比以前的锰浴低近一个数量级的中子源发射率。用新槽测量了两个发射率较低的中子源，分别为4.09 × 104 s−1和1.75 × 105 s−1，不确定度为<； 1.5% （k = 1）。

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

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.