标题： 一种用于研究亚keV核反冲的中子校准设施的设计与表征 显示英文标题

标题： Design and Characterization of a Neutron Calibration Facility for the Study of sub-keV Nuclear Recoils

摘要： 作为一项实验努力的一部分，旨在展示大型质量探测器对预期来自相干中微子-核弹性散射的超低能反冲的灵敏度，我们设计并建造了一个在堪萨斯州立大学Triga Mark-II反应堆上的高度单色24 keV中子束。 该束流特性被选择以模拟各种目标中反应堆反中微子预期的软反冲能量，从而了解专用探测器技术在此尚未探索的亚keV反冲范围内的响应。 本文介绍了束流特性的全面表征（强度、单色性、污染、束流分布），以及使用有机闪烁体中的质子反冲对校准设置的首次测试。 显示英文摘要

摘要： As part of an experimental effort to demonstrate sensitivity in a large-mass detector to the ultra-low energy recoils expected from coherent neutrino-nucleus elastic scattering, we have designed and built a highly monochromatic 24 keV neutron beam at the Kansas State University Triga Mark-II reactor. The beam characteristics were chosen so as to mimic the soft recoil energies expected from reactor antineutrinos in a variety of targets, allowing to understand the response of dedicated detector technologies in this yet unexplored sub-keV recoil range. A full characterization of the beam properties (intensity, monochromaticity, contaminations, beam profile) is presented, together with first tests of the calibration setup using proton recoils in organic scintillator.