Permanent magnet array with reduced stray field designed for a neutron supermirror polarizer

We present a design of a permanent magnet (PM) assembly for a large volume that allows the reduction of long-range external stray fields through magnetic self compensation while also yielding a higher central field. The array described here was developed for a neutron polarization analyzer comprising a large-area supermirror (SM) array. The resulting array is self-compensated because it utilizes two groups of PM with equal but opposite dipole moments and involves modification to a permanent magnet based window-frame magnet. The principles of self compensation with permanent magnets presented are generally applicable for other applicaitons where large volume magnetic fields with low stray field are required.

Authors

Institutions

Publication Details

Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Published
2025-05-05
DOI
https://doi.org/10.1016/j.nima.2025.170552
Citations
1
Primary Topic
Superconducting Materials and Applications
Type
article
Field-Weighted Citation Impact
0.67
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Permanent magnet array with reduced stray field designed for a neutron supermirror polarizer

Helmut Soltner, Earl Babcock, Stefan Mattauch, P. Böni et al.
1 citations
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
Superconducting Materials and Applications
0.67
article

Permanent magnet array with reduced stray field designed for a neutron supermirror polarizer

Helmut Soltner, Earl Babcock, Stefan Mattauch, P. Böni, D. Gorkov, Simon Staringer, Olaf Holderer, Stefano Pasini, M. Braden, M. Monkenbusch
article en
1 citations

Abstract

We present a design of a permanent magnet (PM) assembly for a large volume that allows the reduction of long-range external stray fields through magnetic self compensation while also yielding a higher central field. The array described here was developed for a neutron polarization analyzer comprising a large-area supermirror (SM) array. The resulting array is self-compensated because it utilizes two groups of PM with equal but opposite dipole moments and involves modification to a permanent magnet based window-frame magnet. The principles of self compensation with permanent magnets presented are generally applicable for other applicaitons where large volume magnetic fields with low stray field are required.

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated EquipmentVol. 1078
Forschungszentrum Jülich (DE), University of Cologne (DE), Heinz Maier-Leibnitz Zentrum (DE), Technical University of Munich (DE)
Affordable and clean energy
Openalex Percentile: Top 32%
Superconducting Materials and Applications
0.67
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.

Permanent magnet array with reduced stray field designed for a neutron supermirror polarizer — Helmut Soltner, Earl Babcock, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2025) | TGRS Research Map | TGRS