Contribution to a conference proceedings/Contribution to a book

FZJ-2021-05248

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hot Neutrons and their Applications at FRM II Reactor

Hutanu, V. (Corresponding author)FZJ* ; röhrmoser ; Müller ; Pichlmaier, A. ; Meven, M.FZJ* ; Peters, L. ; Roth, G.

2021

ISBN: 978-92-95064-36-2

Please use a persistent id in citations: http://hdl.handle.net/2128/29561

Abstract: Neutrons with energies between 0.1 and 1 eV slightly above the typical thermal spectrum of a research reactor, often-called hot neutrons, are valuable probes for different scientific applications. Their use in the neutron diffraction, spectroscopy, absorption or irradiation experiments often provides results of superior quality in comparison to thermal neutrons or even results unreachable by the use of the latter. At FRM II, hot neutrons are generated by a dedicated secondary source in the moderator tank, which shifts the spectrum of the moderated neutrons towards higher energies. A beamline with two channels pointing to the centre of the hot source extracts the re-moderated neutrons towards the two dedicated experimental installations POLI and HEiDi. Here, we present the design of the hot neutron source and related instrumentation. In addition, a few representative examples of their use from the fields of crystallography, magnetism and nuclear physics are shown to demonstrate their usefulness.

Keyword(s): Instrument and Method Development (1st) ; Nuclei and Particles (1st) ; Instrument and Method Development (2nd) ; Particle Physics (2nd)

Note: In line with ENS’s aim to promote and contribute to the advancement of science and engineering in the field of the peaceful uses of nuclear technologies, the proceedings of ENS’s conferences are published free of charge. The copyright remains with the authors.

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Heinz Maier-Leibnitz Zentrum (MLZ)
3. JARA-FIT (JARA-FIT)
4. Streumethoden (JCNS-2)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)

Experiment(s):

1. HEiDi: Single crystal diffractometer on hot source (SR9b)
2. POLI: Polarized hot neutron diffractometer (SR9a)

Appears in the scientific report 2021

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Database coverage:

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