Optimization of geomagnetic shielding based on detection efficiency

IF 2.8 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

The European Physical Journal Plus Pub Date : 2025-04-10 DOI:10.1140/epjp/s13360-025-06230-2

Sara R. Cabo, Yasuhiro Nishimura, Sergio Luis Suárez Gómez, Laura Bonavera, Maria Luisa Sanchez, Jesús Daniel Santos, Francisco Javier de Cos

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引用次数: 0

Abstract

Due to the progressive increase in size of the latest Cherenkov-type detectors, it is becoming increasingly important to design a suitable compensation system based on coils of the Earth’s magnetic field to ensure the correct operation of the photomultipliers (PMTs). Until now, most studies have assessed the correct functioning of such a system by the proportion of PMTs experiencing more than 100 mG of magnetic field perpendicular to their axis. In the present study, we discuss whether this evaluation parameter is the most appropriate and propose the average residual perpendicular magnetic field \(< B_{{{\text{perp}}}}>\) as an alternative that more closely reflects the loss of detection efficiency of PMTs. A compensation system design is also proposed that offers good results as well as being economical to optimize this parameter.

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基于探测效率的地磁屏蔽优化

由于最新切伦科夫型探测器的尺寸不断增大，为保证光电倍增管（pts）的正确工作，设计一种基于地磁场线圈的补偿系统变得越来越重要。到目前为止，大多数研究都是通过pmt经历垂直于其轴的超过100毫克磁场的比例来评估这种系统的正确功能。在本研究中，我们讨论了该评价参数是否最合适，并提出了平均剩余垂直磁场\(< B_{{{\text{perp}}}}>\)作为更能反映pmt检测效率损失的替代参数。并提出了一种补偿系统的设计方案，对该参数进行优化，既能取得良好的效果，又经济。

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

The European Physical Journal Plus PHYSICS, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

8.80%

发文量

1150

审稿时长

4-8 weeks

期刊介绍： The aims of this peer-reviewed online journal are to distribute and archive all relevant material required to document, assess, validate and reconstruct in detail the body of knowledge in the physical and related sciences. The scope of EPJ Plus encompasses a broad landscape of fields and disciplines in the physical and related sciences - such as covered by the topical EPJ journals and with the explicit addition of geophysics, astrophysics, general relativity and cosmology, mathematical and quantum physics, classical and fluid mechanics, accelerator and medical physics, as well as physics techniques applied to any other topics, including energy, environment and cultural heritage.