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RSI22-AR-01133.pdf (3.82 MB)

The very large n2EDM magnetically shielded room with an exceptional performance for fundamental physics measurements

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posted on 2023-06-10, 05:18 authored by N J Ayres, G Ban, G Bison, K Bodek, V Bondar, T Bouillaud, B Clement, E Chanel, PJ Chiu, CB Crawford, M Daum, CB Doorenbos, S Emmenegger, Clark GriffithClark Griffith, Philip Harris, others
We present the magnetically shielded room (MSR) for the n2EDM experiment at the Paul Scherrer Institute, which features an interior cubic volume with each side of length 2.92 m, thus providing an accessible space of 25 m3. The MSR has 87 openings of diameter up to 220 mm for operating the experimental apparatus inside and an intermediate space between the layers for housing sensitive signal processing electronics. The characterization measurements show a remanent magnetic field in the central 1 m3 below 100 pT and a field below 600 pT in the entire inner volume, up to 4 cm to the walls. The quasi-static shielding factor at 0.01 Hz measured with a sinusoidal 2 µT peak-to-peak signal is about 100 000 in all three spatial directions and increases rapidly with frequency to reach 108 above 1 Hz.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Review of Scientific Instruments

ISSN

0034-6748

Publisher

AIP Publishing

Issue

9

Volume

93

Page range

a095105 1-11

Event location

United States

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2022-11-01

First Open Access (FOA) Date

2022-11-01

First Compliant Deposit (FCD) Date

2022-10-31

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