Abstract

FZJ-2022-01803

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Coupling HICANS with SELENE guides for tunable beam at small samples

Ma, Z.FZJ* ; Lieutenant, K.FZJ* ; Voigt, J.FZJ* ; Schrader, T. E.FZJ*

2022

Please use a persistent id in citations: http://hdl.handle.net/2128/30950

Abstract: For modern neutron scattering facilities, effective generation of neutrons and their transmittance to smallvolume samples are very important. Particularly, in neutron macro-molecular crystallography, the samplesare very small, sometimes between 0.01 mm3 and 1 mm3 [1, 2]. A high-intensity compact neutron source(HICANS) will be ideally suited for experiments that require the measurement of small samples [3, 4], andSELENE neutron guides are a promising option to enables the beam spot shaping at a virtual sourceposition far away from the sample [5, 6]. In this work, SELENE neutron guides have been simulated fora potential neutron diffractometer for macro-molecular crystals at the Jülich High Brilliance Source (HBS).With the optimized guide geometry, we can obtain a low background tunable neutron beam for a samplewith a cross section as small as 1 mm2 with a flux comparable or even higher than that of existinginstruments at spallation neutron sources or medium flux reactor sources.

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Contributing Institute(s):

1. Streumethoden (JCNS-2)
2. Streumethoden (PGI-4)
3. JARA-FIT (JARA-FIT)
4. High Brilliance Source (JCNS-HBS)
5. JCNS-FRM-II (JCNS-FRM-II)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)

Appears in the scientific report 2022

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Database coverage:

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