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

doi:10.1016/j.nimb.2018.08.030

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 journal › Article › peer-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 language	English
Pages (from-to)	61-65
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	434
DOIs	https://doi.org/10.1016/j.nimb.2018.08.030
State	Published - Nov 1 2018
Externally published	Yes

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.

Funders	Funder number
Scientific User Facilities Division
U.S. Department of Energy
Basic Energy Sciences
Swedish Foundation for International Cooperation in Research and Higher Education	IG-2011-2067
Vetenskapsrådet	C0511501

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10.1016/j.nimb.2018.08.030

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Adlmann, F. A., Busch, S., Vacaliuc, B., Nelson, A., Ankner, J. F., Browning, J. F., Parizzi, A., Bilheux, J. K., Halbert, C. E., Korolkovas, A., & Wolff, M. (2018). Normalization of stroboscopic neutron scattering experiments. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 434, 61-65. https://doi.org/10.1016/j.nimb.2018.08.030

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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.",

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Adlmann, FA, Busch, S, Vacaliuc, B, Nelson, A, Ankner, JF , Browning, JF , Parizzi, A , Bilheux, JK , Halbert, CE, Korolkovas, A & Wolff, M 2018, 'Normalization of stroboscopic neutron scattering experiments', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 434, pp. 61-65. https://doi.org/10.1016/j.nimb.2018.08.030

TY - JOUR

T1 - Normalization of stroboscopic neutron scattering experiments

AU - Adlmann, F. A.

AU - Busch, S.

AU - Vacaliuc, B.

AU - Nelson, A.

AU - Ankner, J. F.

AU - Browning, J. F.

AU - Parizzi, A.

AU - Bilheux, J. K.

AU - Halbert, C. E.

AU - Korolkovas, A.

AU - Wolff, M.

PY - 2018/11/1

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N2 - 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.

AB - 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.

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JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Normalization of stroboscopic neutron scattering experiments

Abstract

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