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Transmission Bender as an Analyzer Device for MIEZE

Jochum, Johanna K. ; Cooper, Jos F. K. ; Vogl, Lukas M. ; Link, Peter ; Soltwedel, Olaf ; Böni, Peter ; Pfleiderer, Christian ; Franz, Christian (2022)
Transmission Bender as an Analyzer Device for MIEZE.
In: Quantum Beam Science, 2022, 6 (3)
doi: 10.26083/tuprints-00022327
Article, Secondary publication, Publisher's Version

Abstract

MIEZE (Modulation of IntEnsity with Zero Effort) spectroscopy is a high-resolution spin echo technique optimized for the study of magnetic samples and samples under depolarizing conditions. It requires a polarization analyzer in between spin flippers and the sample position. For this, the device needs to be compact and insensitive to stray fields from large magnetic fields at the sample position. For MIEZE, in small angle scattering geometry, it is further essential that the analyzer does not affect the beam profile, divergence, or trajectory. Here, we compare different polarization analyzers for MIEZE and show the performance of the final design, a transmission bender, which we compare to McStas simulations. Commissioning experiments have uncovered spurious scattering in the scattering profile of the bender, which most likely originates from double Bragg scattering in bent silicon.

Item Type: Article
Erschienen: 2022
Creators: Jochum, Johanna K. ; Cooper, Jos F. K. ; Vogl, Lukas M. ; Link, Peter ; Soltwedel, Olaf ; Böni, Peter ; Pfleiderer, Christian ; Franz, Christian
Type of entry: Secondary publication
Title: Transmission Bender as an Analyzer Device for MIEZE
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: MDPI
Journal or Publication Title: Quantum Beam Science
Volume of the journal: 6
Issue Number: 3
Collation: 11 Seiten
DOI: 10.26083/tuprints-00022327
URL / URN: https://tuprints.ulb.tu-darmstadt.de/22327
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

MIEZE (Modulation of IntEnsity with Zero Effort) spectroscopy is a high-resolution spin echo technique optimized for the study of magnetic samples and samples under depolarizing conditions. It requires a polarization analyzer in between spin flippers and the sample position. For this, the device needs to be compact and insensitive to stray fields from large magnetic fields at the sample position. For MIEZE, in small angle scattering geometry, it is further essential that the analyzer does not affect the beam profile, divergence, or trajectory. Here, we compare different polarization analyzers for MIEZE and show the performance of the final design, a transmission bender, which we compare to McStas simulations. Commissioning experiments have uncovered spurious scattering in the scattering profile of the bender, which most likely originates from double Bragg scattering in bent silicon.

Uncontrolled Keywords: neutron scattering, polarization, neutron spin echo, single crystal silicon, double Bragg scattering
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-223279
Additional Information:

This article belongs to the Special Issue New Trends in Neutron Instrumentation II

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics
05 Department of Physics > Institute for Condensed Matter Physics
Date Deposited: 12 Sep 2022 13:21
Last Modified: 14 Sep 2022 13:59
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