Journal Article

IMPULSE-2022-00177

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Design of a neutron polarizing bender for a cold triple-axis spectrometer

Xu, J. (Corresponding author)MLZ* ; Atterving, M.MLZ* ; Skoulatos, M.MLZ* ; Ostermann, A.MLZ* ; Georgii, R.MLZ* ; Keller, T.MLZ* ; Böni, P.MLZ*

2022
North-Holland Publ. Co. Amsterdam

Please use a persistent id in citations: doi:10.1016/j.nima.2022.166526

Abstract: We report on a design study for a supermirror based neutron polarizer for a cold neutron triple-axis spectrometer to be installed at the MLZ in Garching. The spectrometer will be located at a midway position of a neutron guide, with other non-polarized instruments following downstream, such that the neutron polarizer has to be installed in the monochromatic beam downstream but close to the monochromator inside the monochromator shielding. The polarizer operates in a wavelength band 2Å- 6Å. The design is optimized by ray tracing simulations with the McStas software. We compare the performance of the conventional reflection and transmission type C-benders, V-bender (kink-polarizer), S-bender, and V-cavity. The latter two will only be briefly discussed here. We also propose a new design for a transmission C-bender with additional polarizing collimators.

Keyword(s): Instrument and Method Development (1st) ; Instrument and Method Development (2nd)

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Contributing Institute(s):

1. MIRA (MIRA)
2. BIODIFF (BIODIFF)
3. TRISP (TRISP)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2022

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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