Measuring scattering angles with neutron spin echo

Michael R. Fitzsimmons, Helmut Fritzsche, Marita Gierlings, Janos Major, Roger Pynn

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report results of experiments designed to test the use of thin magnetic films as elements of a neutron spin echo (NSE) apparatus for determining neutron scattering angles. We show that 10-μm thin films of Permalloy (Ni 0.8 Fe0.2) electrodeposited on silicon wafers function well as π/2 spin rotators. 30μm thick films of the same material used as precession fields in the NSE set-up allow the neutron scattering angle to be determined with a resolution of about 0.05°. We show that, even when the NSE angular resolution is comparable to the angular divergence of neutron beams used in a reflectometry experiment, the use of NSE aids in the separation of specular and diffuse scattering.

Original languageEnglish
Pages (from-to)10-15
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume529
Issue number1-3 SPEC. ISS.
DOIs
Publication statusPublished - Aug 21 2004

Fingerprint

echoes
Neutrons
Scattering
neutrons
Neutron scattering
scattering
Magnetic thin films
neutron scattering
Neutron beams
Silicon wafers
Thick films
magnetic films
neutron beams
Permalloys (trademark)
angular resolution
precession
Experiments
thick films
divergence
Thin films

Keywords

  • Diffuse scattering
  • Larmor precession
  • Neutron reflection
  • Neutron spin echo
  • Surface roughness

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Measuring scattering angles with neutron spin echo. / Fitzsimmons, Michael R.; Fritzsche, Helmut; Gierlings, Marita; Major, Janos; Pynn, Roger.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 529, No. 1-3 SPEC. ISS., 21.08.2004, p. 10-15.

Research output: Contribution to journalArticle

Fitzsimmons, Michael R. ; Fritzsche, Helmut ; Gierlings, Marita ; Major, Janos ; Pynn, Roger. / Measuring scattering angles with neutron spin echo. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2004 ; Vol. 529, No. 1-3 SPEC. ISS. pp. 10-15.
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