Spin Echo Spectrometry Using Very Cold Neutrons

V. T. Lebedev, I. M. Dubovsky, G. Török, A. P. Serebrov

Research output: Contribution to journalArticle

Abstract

Concept of spin echo spectrometer on very cold neutrons (wavelengths λ ~ 10‒30 nm) to provide extra high resolution in energy transfer (ΔE ~ 10–13 eV) has been proposed. Simultaneous measurements of spin echo signals at different wavelengths will be realized using broadband spin flippers in combination with Fourier-analysis of λ-spectrum. The application of very cold neutrons should extend the spin echo time diapason radically, t ~ 10–12‒10–3 s. This promises to open a set of novel scientific areas including the spectroscopy of chemical reactions and catalytic processes, conformational transitions in polymers and biological molecules, dynamic modes in carbon structures (fullerenes, nanotubes, graphenes) at scales from few nanometers to microns. Presently, the development of NSE-spectrometer on VCN becomes relevant since the project of ultra cold neutron source at WWR-M reactor (PNPI) is in progress.

Original languageEnglish
Pages (from-to)426-430
Number of pages5
JournalJournal of Surface Investigation
Volume12
Issue number3
DOIs
Publication statusPublished - May 1 2018

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Keywords

  • very cold neutron nanostructure scattering dynamics

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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