Journal Article

IMPULSE-2020-00227

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Characterization of pyrolytic graphite with cold neutrons

Toft-Petersen, R. (Corresponding author) ; Georgii, R.MLZ* ; Schneider, M. ; Nishiki, N. ; Böni, P.MLZ*

2020
North-Holland Publ. Co. Amsterdam

Please use a persistent id in citations: doi:10.1016/j.nima.2020.164341

Abstract: We present a thorough investigation of the diffuse scattering of neutrons from Highly Oriented Pyrolytic Graphite (HOPG) that appears in the tails of the Bragg scattering profile. Using a low background neutron diffraction setup, the elastic diffuse scattering is shown to be a factor of 10$^4$ -10$^7$ weaker than the peak intensity of the (002) Bragg reflection. Evidence of inelastic scattering due to phonons is observed, 10$^5$ times weaker than the Bragg peak. Our results demonstrate the possibility of using HOPG in complex multiplexing geometries to improve the performance of spectrometers involving multi-analyzer back-end systems, and can be helpful in designing such systems for optimal performance.

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

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Contributing Institute(s):

1. MIRA (MIRA)
2. E21 (E21)

Experiment(s):

1. MIRA-2: Multipurpose instrument 2 (NL6S)
2. MIRA: Multipurpose instrument (NL6N)

Appears in the scientific report 2020

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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 ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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