A novel, steerable, low-energy proton source for detector characterization

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2026-06-01 Epub Date: 2026-01-29 DOI:10.1016/j.nima.2026.171336

Nicholas Macsai , August Mendelsohn , David Harrison , Russell Mammei , Michael Gericke , Leah Broussard , Erick Smith , Grant Riley , Glenn Randall , Mark Makela

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Abstract

We report on the conversion of the Manitoba II mass spectrometer into a versatile low-energy proton beam facility. This infrastructure is adaptable to any detector-under-test (DUT), and has proven itself effective with the characterization of silicon detectors used in subatomic beyond-the-Standard-Model (BSM) searches, namely the Nab experiment. A pencil beam of mono-energetic protons can be produced in a range from 25 keV to 35 keV, achieving a beam current of

\sim

\times

10^-18 A.

Electrostatic steering plates were constructed to direct the Gaussian-profile proton beam over a 117 mm diameter area-of-interest with full-width at half-maxima (FWHM) ranging from 0.6 mm to 1.26 mm. This work discusses the modifications and subsequent tests to confirm the beam specifications met the demands of the aforementioned detectors.

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一种新型的、可操纵的、用于探测器表征的低能质子源

我们报告了马尼托巴II质谱仪转换成一个多功能低能质子束设施。这种基础结构适用于任何待测探测器（DUT），并已证明其对亚原子超标准模型（BSM）搜索（即Nab实验）中使用的硅探测器的表征是有效的。单能量质子的铅笔束可以在25 keV到35 keV的范围内产生，达到1 × 10-18 A的束电流。构建了静电转向板，用于引导高斯型质子束穿过直径为117 mm的兴趣区域，半最大值全宽度（FWHM）范围为0.6 mm至1.26 mm。本文讨论了修改和后续测试，以确认光束规格满足上述探测器的要求。

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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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.