Dec 8 – 9, 2022
Marriott
Europe/Berlin timezone

Next generation asymmetric horizontal SANS magnet for quantum phenomena in nanostructures and correlated electron systems

Dec 9, 2022, 2:00 PM
3h
Marriott

Marriott

Board: P-088
Poster Neutron Methods Poster Session

Speakers

Dr Madhu Ghanathe (Postdoctoral researcher)Dr Sebastian Muehlbauer (SANS-I)

Description

The next generation asymmetric horizontal SANS magnet (NHSM) project will provide a unique toolset to study the quantum phenomena in nanostructures and correlated electron systems [1]. This project includes the idea, design and optimization, of a high-performance compensated asymmetric horizontal magnet for small angle neutron scattering (SANS), reflectometry (REFSANS), and the resonance spin echo technique MIEZE (RESEDA) [2]. It uses the new high-temperature superconducting (HTS) technology with a split coil magnet design of reasonable weight (~750kg) and size (~75cm x 75cm), which enables it to fit on several instruments (SANS I, REFSANS, RESEDA, KWS2) at MLZ.

An asymmetric coil geometry removes zero-field nodes and will allow the use of polarized neutrons and polarization analysis. The use of high-temperature superconductor breaches the limitations of stray fields down to 10G at a 1m distance with active compensation at a central field of 10T. This project proposal is based on the results of two feasibility studies performed in collaboration with the companies Bilfinger-Noell (Germany) and HTS-110 (New Zealand), funded by BMBF.
[1] Magnetic Small-Angle Neutron Scattering, S. Mühlbauer et al.,Reviews of Modern Physics, 91, 015004, 2019
[2] Neutron MIEZE spectroscopy with focal length tuning, J. Jochum, A. Wendl, T. Keller and C. Franz. Measurement Science and Technology, Vol. 31, No.3 2020

Primary authors

Dr Madhu Ghanathe (Postdoctoral researcher) Dr Sebastian Muehlbauer (SANS-I)

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