Normalization of stroboscopic neutron scattering experiments

F. A. Adlmann, S. Busch, B. Vacaliuc, A. Nelson, J. F. Ankner, J. F. Browning, A. Parizzi, J. K. Bilheux, C. E. Halbert, A. Korolkovas, M. Wolff

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Neutron scattering studies of kinetic processes are often flux limited. For processes which can be repeated many times, this can be mitigated by stroboscopic reintegration. The recorded scattering events are assigned to different time slices of the process and corresponding slices from all repetitions are summed up. The normalization of such data with respect to the incident beam spectrum can be challenging since the incident neutron flux may not necessarily be evenly distributed over all time slices. In this paper, we discuss how this can result in misleading information and we expand on a technique to amend these issues.

Original languageEnglish
Pages (from-to)61-65
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume434
DOIs
StatePublished - Nov 1 2018
Externally publishedYes

Funding

The authors acknowledge the help of Vladislav Sedov during the neutron scattering experiment and preparation, as well as the Swedish Research Council (project grant C0511501) and STINT (contract No. IG-2011-2067) for financial support. This research at ORNL’s Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. A special appreciation to Prof. Björgvin Hjörvarsson for the fruitful discussion about different error sources. The authors express their gratitude to Anton-Paar for technical support and Pixabay for the vector-graphics.

FundersFunder number
Scientific User Facilities Division
U.S. Department of Energy
Basic Energy Sciences
Swedish Foundation for International Cooperation in Research and Higher EducationIG-2011-2067
VetenskapsrådetC0511501

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