在n2EDM实验的磁屏蔽室内产生高度均匀的磁场

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS The European Physical Journal C Pub Date : 2025-02-20 DOI:10.1140/epjc/s10052-025-13902-x

C. Abel, N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, D. C. Bowles, G. L. Caratsch, E. Chanel, W. Chen, P.-J. Chiu, C. Crawford, B. Dechenaux, C. B. Doorenbos, S. Emmenegger, L. Ferraris-Bouchez, M. Fertl, P. Flaux, A. Fratangelo, D. Goupillière, W. C. Griffith, Z. Grujic, D. Höhl, M. Kasprzak, K. Kirch, V. Kletzl, S. V. Komposch, P. A. Koss, J. Krempel, B. Lauss, T. Lefort, A. Lejuez, R. Li, M. Meier, J. Menu, K. Michielsen, P. Mullan, A. Mullins, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, G. Quemener, M. Rawlik, D. Rebreyend, I. Rienaecker, D. Ries, S. Roccia, D. Rozpedzik, A. Schnabel, P. Schmidt-Wellenburg, E. P. Segarra, N. Severijns, C. A. Smith, K. Svirina, R. Tavakoli, J. Thorne, S. Touati, J. Vankeirsbilck, R. Virot, J. Voigt, E. Wursten, N. Yazdandoost, J. Zejma, N. Ziehl, G. Zsigmond

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引用次数: 0

摘要

我们提出了一个线圈系统，旨在产生一个高度均匀的磁场在保罗谢勒研究所的n2EDM实验。它由一个主线圈\(B_0\)和一组辅助线圈组成，安装在一个边长为\(273~\hbox {cm}\)的立方结构上，位于一个大型磁屏蔽室（MSR）内。我们组装了这个系统，并用一个测绘机器人对其性能进行了表征。该装置能够产生一个\(1~\upmu \hbox {T}\)垂直场，其相对均方根偏差\(\sigma (B_z)/B_z = 3\times 10^{-5}\)超过感兴趣的体积，半径\(40~\hbox {cm}\)和高度\({30}~\hbox {cm}\)的圆柱体。这种水平的均匀性克服了n2EDM的要求，使得测量中子电偶极矩的灵敏度优于\(1\times 10^{-27}e\,\hbox {cm}\)。

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Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment

We present a coil system designed to generate a highly uniform magnetic field for the n2EDM experiment at the Paul Scherrer Institute. It consists of a main \(B_0\) coil and a set of auxiliary coils mounted on a cubic structure with a side length of \(273~\hbox {cm}\), inside a large magnetically shielded room (MSR). We have assembled this system and characterized its performances with a mapping robot. The apparatus is able to generate a \(1~\upmu \hbox {T}\) vertical field with a relative root mean square deviation \(\sigma (B_z)/B_z = 3\times 10^{-5}\) over the volume of interest, a cylinder of radius \(40~\hbox {cm}\) and height \({30}~\hbox {cm}\). This level of uniformity overcomes the n2EDM requirements, allowing a measurement of the neutron Electric Dipole Moment with a sensitivity better than \(1\times 10^{-27}e\,\hbox {cm}\).

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.