Journal Article

FZJ-2016-07197

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png HERITAGE: the concept of a giant flux neutron reflectometer for the exploration of 3-d structure of free-liquid and solid interfaces in thin films

Mattauch, S. (Corresponding author)FZJ* ; Ioffe, A.FZJ* ; Lott, D. ; Bottyán, L. ; Daillant, J. ; Markó, M. ; Menelle, A. ; Sajti, S. ; Veres, T.

2017
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/13400  doi:10.1016/j.nima.2016.09.043

Abstract: The instrumental concept of HERITAGE – a reflectometer with a horizontal sample geometry – well fitted to the long pulse structure of a neutron source is presented. It is constitutes a new class of reflectometers achieving the unprecedentedly high flux for classical specular reflectometry combined with off-specular reflectometry and grazing incidence small-angle scattering (GISANS), thus resulting in a complete 3-d exploration of lateral and in depth structures in thin films. This is achieved by specially designed neutron guides. In the horizontal direction (perpendicular to the scattering plane) the guide's elliptic shape focusses the neutrons onto the sample. In the vertical direction a multichannel geometry provides a smooth divergence distribution at the sample position while accepting the entire beam from a compact high-brilliance flat moderator.The modular collimation setup of HERITAGE provides extremely high flexibility in respect to sample geometries and environments, including the possibility to study virtually all types of solid and liquid interfaces, statically or kinetically. The use of multiple beam illumination allows for reflectivity and GISANS measurements at liquid interfaces both from above and below without a need to move the sample.This concept assures the delivery of the maximum possible and usable flux to the sample in both reflectivity and GISANS measurement regimes. The presented design outperforms the flux of all present-day and already for the ESS planned reflectometers and GISANS setups in flux and in measuring time for standard samples.

Keyword(s): Polymers, Soft Nano Particles and Proteins (1st) ; Magnetism (2nd) ; Soft Condensed Matter (2nd) ; Biology (2nd) ; Instrument and Method Development (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 524 - Controlling Collective States (POF3-524) (POF3-524)
2. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
3. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)
4. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
5. 144 - Controlling Collective States (POF3-144) (POF3-144)
6. 6213 - Materials and Processes for Energy and Transport Technologies (POF3-621) (POF3-621)
7. 6215 - Soft Matter, Health and Life Sciences (POF3-621) (POF3-621)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2017

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

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