arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2302.00581physics.ins-det
收藏

一种基于中子散射仪参数的中子慢化剂最佳尺寸确定新方法

A new method to find out the optimal neutron moderator size based on neutron scattering instrument parameters

Petr Konik, Alexander Ioffe

摘要:

本文提出了一种简单、快速的分析方法,用以找出中子慢化剂和光学系统入口尺寸的最佳组合,使整个样品在最小或无背景的情况下得到照明。在采用具有增强的中子束亮度的低维仲氢减速剂的情况下,该方法允许确定减速剂的最小尺寸,其提供最高的样品通量,同时保持样品完全被照射。该方法可用于新中子源的设计、中子光学系统的升级和慢化剂的更换。

英文摘要:

Simple and fast analytic method to find out optimal combinations of sizes of neutron moderator and optical system entrance, allowing for the full sample illumination with minimum to none background, is developed. In the case of employing low-dimensional para-hydrogen moderators with enhanced neutron beam brilliance, the method allows to determine the minimum size of moderator, which provides the highest sample flux while keeping the sample fully illuminated. This method can be used during the design of new neutron sources, upgrades of neutron optical systems and moderator replacements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑