Sub‐millisecond time‐resolved small‐angle neutron scattering measurements at NIST. Issue 3 (14th April 2020)

• Record Type: Journal Article
• Authors: Glinka, Charles; Bleuel, Markus; Tsai, Peter; Zákutná, Dominika; Honecker, Dirk; Dresen, Dominique; Mees, Flore; Disch, Sabrina
• Is Part Of: Journal of applied crystallography. Volume 53:Issue 3(2020)
• Page Start: 598
• Page End: 604
• Publication Date: 2020-04-14
• Subjects: small‐angle neutron scattering -- hematite nanospindles -- time‐involved small‐angle neutron experiments -- TISANE -- reorientation dynamics -- magnetic particles; Crystallography -- Periodicals; 548.05
• DOI: 10.1107/S1600576720004367
• Languages: English
• ISSNs: 0021-8898

Abstract

Abstract : Instrumentation for sub‐millisecond time‐resolved small‐angle neutron scattering measurements at NIST is described and applied to the reorientation dynamics of elongated hematite nanoparticles. Abstract : Instrumentation for time‐resolved small‐angle neutron scattering measurements with sub‐millisecond time resolution, based on Gähler's TISANE (time‐involved small‐angle neutron experiments) concept, is in operation at NIST's Center for Neutron Research. This implementation of the technique includes novel electronics for synchronizing the neutron pulses from high‐speed counter‐rotating choppers with a periodic stimulus applied to a sample. Instrumentation details are described along with measurements demonstrating the utility of the technique for elucidating the reorientation dynamics of anisometric magnetic particles.