Journal Article

IMPULSE-2026-00107

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png 3D Local Measurement of the Magnetic Field Strength Inside Martian Meteorite NWA 7034 by Polarimetric Neutron Imaging

Qvistgaard, C. H. (Corresponding author) ; Naver, E. B. ; Wolfertz, A.MLZ* ; Karimi, V. ; Shinohara, T. ; Parker, J. D. ; Kai, T. ; Hayashida, H. ; Schmidt, S. ; Kuhn, L. T.

2026
Wiley Hoboken, NJ

Please use a persistent id in citations: doi:10.1029/2025GC012641

Abstract: We present a new method for paleomagnetic investigations, polarized neutron imaging, a non-destructive magnetic imaging technique benefiting from the high penetration depth and spin of the neutron allowing spatial characterization of the magnetic field within a sample. We showcase the general capabilities of the technique by performing 3D vector tomography reconstructing the full magnetic field inside a 10 mm × 13 mm × 2 mm fragment of the remagnetized Martian meteorite NWA 7034. This was done in preparation for the Mars sample return mission where the orientation of samples on Mars is known. The magnetic field was measured with a spatial resolution of 215 μm and lower field bound of 0.5 mT mm.

Keyword(s): Earth, Environment and Cultural Heritage (1st) ; Geosciences (2nd) ; Instrument and Method Development (2nd)

Note: Funding: - ESS Lighthouse on Hard Materials in 3D, SOLID, funded by the Danish Agency for Science and Higher Education, Grant 8144-00002B - Danish Agency for Science, Technology, and Innovation: funding the instrument center DanScatt - Materials and Life Science Experimental Facility of the J-PARC under user program 2018L0502

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Contributing Institute(s):

1. NECTAR (NECTAR)

Research Program(s):

1. 05K22WO5 - Entwicklung eines Szintillationsdetektors im ns-Bereich mit µm-Auflösung (BMBF-05K22WO5) (BMBF-05K22WO5)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2026

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