Journal Article FZJ-2018-03075

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The high-intensity reflectometer of the Jülich Centre for Neutron Science: MARIA

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2018
Munksgaard Copenhagen

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Abstract: MARIA (magnetism reflectometer with high incident angle) is a world class vertical sample reflectometer dedicated to the investigation of thin films in the fields of magnetism, soft matter and biology. The elliptical vertically focusing guide allows one to measure small samples with a typical size of 1 × 1 cm very efficiently. The double-bounce polarizer and the in situ pumped 3He SEOP (spin-exchange optical pumping) neutron spin filter cell for analysing the polarization of the reflected neutron beam can be moved into the beam in seconds. The polarized flux of MARIA amounts to 5 × 107 n (s cm2)−1 at the sample position with a horizontally collimated beam of 3 mrad, a wavelength of λ = 4.5 Å and a wavelength resolution of Δλ/λ = 10%. In the non-polarized mode a flux of 1.2 × 108 n (s cm2)−1 is achieved in this configuration. MARIA is also capable of grazing-incidence small-angle neutron scattering measurements, using a pinhole collimation with two four-segment slits and an absorber that prevents the focusing of the elliptical guide in the vertical direction.

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

Classification:

Contributing Institute(s):
  1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
  2. JARA-FIT (JARA-FIT)
  3. Zentralinstitut für Technologie (ZEA-1)
  4. Streumethoden (JCNS-2)
  5. Neutronenstreuung (Neutronenstreuung ; JCNS-1)
  6. Zentralinstitut für Elektronik (ZEA-2)
  7. G-ELI (G-ELI)
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. MARIA: Magnetic reflectometer with high incident angle (NL5N)

Appears in the scientific report 2018
Database coverage:
Medline ; Creative Commons Attribution CC BY 4.0 ; OpenAccess ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; NationallizenzNationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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The record appears in these collections:
Institute Collections > JCNS > JCNS-FRM-II
Document types > Articles > Journal Article
Institute Collections > JCNS > JCNS-1
Institute Collections > JCNS > JCNS-2
JARA > JARA > JARA-JARA\-FIT
Institute Collections > ZEA > ZEA-2
Institute Collections > ZEA > ZEA-1
Workflow collections > Public records
Workflow collections > Publication Charges
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 Record created 2018-05-18, last modified 2022-09-30


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