Journal Article

FZJ-2014-04038

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Grazing incidence neutron spin echo spectroscopy: instrumentation aspects and scientific opportunities

Holderer, O. (Corresponding Author)FZJ* ; Frielinghaus, H.FZJ* ; Wellert, S. ; Lipfert, F.FZJ* ; Monkenbusch, M.FZJ* ; von Klitzing, R. ; Richter, D.FZJ*

2014
IOP Publ. Bristol

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/7172  doi:10.1088/1742-6596/528/1/012025

Abstract: Grazing Incidence Neutron Spin Echo Spectroscopy (GINSES) opens new possibilities for observing the thermally driven dynamics of macromolecules close to a rigid interface. The information about the dynamics can be retrieved as a function of scattering depth of the evanescent neutron wave, on the length scale in the range of some 10-100 nm. Using a classical neutron spin echo spectrometer with a laterally collimated beam, dynamics can be measured in grazing incidence geometry. We show examples of how the interface modifies the dynamics of microemulsions, membranes and microgels. Instrumental details and possible improvements for this technique will be presented. The key issue is the low intensity for dynamics measurements with an evanescent neutron wave. Conceptual questions how a specialised instrument could improve the experimental technique will be discussed.

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

---

Contributing Institute(s):

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

Research Program(s):

1. 451 - Soft Matter Composites (POF2-451) (POF2-451)
2. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. J-NSE: Neutron spin-echo spectrometer (NL2ao)

Appears in the scientific report 2014

---

Database coverage:
; ; ; ; Nationallizenz ; SCOPUS

---