Journal Article

FZJ-2020-04890

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Advanced Small-Angle Scattering Instrument Available in the Tokyo Area. Time-Of-Flight, Small-Angle Neutron Scattering Developed on the iMATERIA Diffractometer at the High Intensity Pulsed Neutron Source J-PARC

Koizumi, S. (Corresponding author) ; Noda, Y. ; Maeda, T. ; Inada, T. ; Ueda, S. ; Fujisawa, T. ; Izunome, H. ; Robinson, R. A. ; Frielinghaus, H.FZJ*

2020
MDPI Barcelona

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Please use a persistent id in citations: http://hdl.handle.net/2128/26454  doi:10.3390/qubs4040042

Abstract: A method of time-of-flight, small-angle neutron scattering (TOF-SANS) has been developed based on the iMATERIA powder diffractometer at BL20, of the Materials and Life Sciences Facility (MLF) at the high-intensity proton accelerator (J-PARC). A large-area detector for SANS, which is composed of triple-layered 3He tube detectors, has a hole at its center in order to release a direct beam behind and to detect ultra-small-angle scattering. As a result, the pulsed-neutron TOF method enables us to perform multiscale observations covering 0.003 < q (Å−1) < 40 (qmax/qmix = 1.3 × 104) and to determine the static structure factor S(q) and/or form factor P(q) under real-time and in-situ conditions. Our challenge, using unique sample accessories of a super-conducting magnet and polarized neutron, is dynamic nuclear polarization (DNP) for contrast variation, especially for industrial use. To reinforce conventional SANS measurements with powder materials, grazing-incidence small-angle neutron scattering (GISANS) or reflectivity is also available on the iMATERIA instrument.

Keyword(s): Engineering, Industrial Materials and Processing (1st) ; Instrument and Method Development (2nd) ; Materials Science (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Neutronenstreuung (JCNS-1)
3. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
2. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2020

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Database coverage:
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