论文标题

(α,n)反应的新型模块化中子长计数器

A novel modular neutron long counter for (α,n) reactions

论文作者

Mont-Geli, N, Tarifeño-Saldivia, A, Calviño, F, Pallàs, M, Tain, J L

论文摘要

在这项工作中,我们介绍了(α,n)反应的新模块化和可运输中子检测器的设计。该检测器基于使用嵌入高密度聚乙烯的几个3He填充的比例计数器。为了向检测器提供独立于中子能量的响应,已经采用了固定的响应,并应用了创新的设计方法。该方法基于使用热中子吸收器对计数器对总效率的优化。这允许获得高达10 meV的平坦响应。提出了概念验证原型检测器的表征。讨论了使用此新检测器进行(α,n)反应测量值的观点。

In this work, we present the design of a new modular and transportable neutron detector for (α,n) reactions. The detector is based on the use of several 3He-filled proportional counters embedded in high density polyethylene. In order to provide the detector with a response independent of the neutron energy, a flat response, an innovative design methodology has been applied. The method is based on the optimization of the counters contribution to the total efficiency by using thermal neutron absorbers. This allows to obtain flat responses up to 10 MeV. The characterization of a proof-of-concept prototype detector is presented. The perspectives for using this new detector for (α,n) reactions measurements are discussed.

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