Analysing neutron scattering data using McStas virtual experiments

L. Udby; P. K. Willendrup; E. Knudsen; Ch. Niedermayer; U. Filges; N. B. Christensen; E. Farhi; B. O. Wells; Kim Lefmann

doi:10.1016/j.nima.2010.06.235

Analysing neutron scattering data using McStas virtual experiments

L. Udby, P. K. Willendrup, E. Knudsen, Ch. Niedermayer, U. Filges, N. B. Christensen, E. Farhi, B. O. Wells, Kim Lefmann

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

With the intention of developing a new data analysis method using virtual experiments we have built a detailed virtual model of the cold triple-axis spectrometer RITA-II at PSI, Switzerland, using the McStas neutron ray-tracing package. The parameters characterising the virtual instrument were carefully tuned against real experiments. In the present paper we show that virtual experiments reproduce experimentally observed linewidths within 1-3% for a variety of samples. Furthermore we show that the detailed knowledge of the instrumental resolution found from virtual experiments, including sample mosaicity, can be used for quantitative estimates of linewidth broadening resulting from, e.g., finite domain sizes in single-crystal samples. (C) 2010 Elsevier B.V. All rights reserved.

Original language	English
Title of host publication	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publisher	Elsevier
Pages	S138-S143
Volume	634
DOIs	https://doi.org/10.1016/j.nima.2010.06.235
Publication status	Published - 2011
Event	International Workshop on Neutron Optics - Grenoble, France Duration: 2010 Mar 17 → 2010 Mar 19

Publication series

Name
Volume	634
ISSN (Print)	0168-9002

Conference

Conference	International Workshop on Neutron Optics
Country/Territory	France
City	Grenoble
Period	2010/03/17 → 2010/03/19

Subject classification (UKÄ)

Accelerator Physics and Instrumentation

Free keywords

Virtual experiments
Neutron triple axis spectrometers
Deconvolution
of finite-size effects
Resolution

Access to Document

10.1016/j.nima.2010.06.235

Cite this

Udby, L., Willendrup, P. K., Knudsen, E., Niedermayer, C., Filges, U., Christensen, N. B., Farhi, E., Wells, B. O., & Lefmann, K. (2011). Analysing neutron scattering data using McStas virtual experiments. In Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (Vol. 634, pp. S138-S143). Elsevier. https://doi.org/10.1016/j.nima.2010.06.235

@inproceedings{b36a9f272f50480b94b5cda2cdba45d8,

title = "Analysing neutron scattering data using McStas virtual experiments",

abstract = "With the intention of developing a new data analysis method using virtual experiments we have built a detailed virtual model of the cold triple-axis spectrometer RITA-II at PSI, Switzerland, using the McStas neutron ray-tracing package. The parameters characterising the virtual instrument were carefully tuned against real experiments. In the present paper we show that virtual experiments reproduce experimentally observed linewidths within 1-3% for a variety of samples. Furthermore we show that the detailed knowledge of the instrumental resolution found from virtual experiments, including sample mosaicity, can be used for quantitative estimates of linewidth broadening resulting from, e.g., finite domain sizes in single-crystal samples. (C) 2010 Elsevier B.V. All rights reserved.",

keywords = "Virtual experiments, Neutron triple axis spectrometers, Deconvolution, of finite-size effects, Resolution",

author = "L. Udby and Willendrup, {P. K.} and E. Knudsen and Ch. Niedermayer and U. Filges and Christensen, {N. B.} and E. Farhi and Wells, {B. O.} and Kim Lefmann",

year = "2011",

doi = "10.1016/j.nima.2010.06.235",

language = "English",

volume = "634",

publisher = "Elsevier",

pages = "S138--S143",

booktitle = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

address = "United States",

note = "International Workshop on Neutron Optics ; Conference date: 17-03-2010 Through 19-03-2010",

}

Udby, L, Willendrup, PK, Knudsen, E, Niedermayer, C, Filges, U, Christensen, NB, Farhi, E, Wells, BO & Lefmann, K 2011, Analysing neutron scattering data using McStas virtual experiments. in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. vol. 634, Elsevier, pp. S138-S143, International Workshop on Neutron Optics, Grenoble, France, 2010/03/17. https://doi.org/10.1016/j.nima.2010.06.235

Analysing neutron scattering data using McStas virtual experiments. / Udby, L.; Willendrup, P. K.; Knudsen, E. et al.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 634 Elsevier, 2011. p. S138-S143.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Analysing neutron scattering data using McStas virtual experiments

AU - Udby, L.

AU - Willendrup, P. K.

AU - Knudsen, E.

AU - Niedermayer, Ch.

AU - Filges, U.

AU - Christensen, N. B.

AU - Farhi, E.

AU - Wells, B. O.

AU - Lefmann, Kim

PY - 2011

Y1 - 2011

N2 - With the intention of developing a new data analysis method using virtual experiments we have built a detailed virtual model of the cold triple-axis spectrometer RITA-II at PSI, Switzerland, using the McStas neutron ray-tracing package. The parameters characterising the virtual instrument were carefully tuned against real experiments. In the present paper we show that virtual experiments reproduce experimentally observed linewidths within 1-3% for a variety of samples. Furthermore we show that the detailed knowledge of the instrumental resolution found from virtual experiments, including sample mosaicity, can be used for quantitative estimates of linewidth broadening resulting from, e.g., finite domain sizes in single-crystal samples. (C) 2010 Elsevier B.V. All rights reserved.

AB - With the intention of developing a new data analysis method using virtual experiments we have built a detailed virtual model of the cold triple-axis spectrometer RITA-II at PSI, Switzerland, using the McStas neutron ray-tracing package. The parameters characterising the virtual instrument were carefully tuned against real experiments. In the present paper we show that virtual experiments reproduce experimentally observed linewidths within 1-3% for a variety of samples. Furthermore we show that the detailed knowledge of the instrumental resolution found from virtual experiments, including sample mosaicity, can be used for quantitative estimates of linewidth broadening resulting from, e.g., finite domain sizes in single-crystal samples. (C) 2010 Elsevier B.V. All rights reserved.

KW - Virtual experiments

KW - Neutron triple axis spectrometers

KW - Deconvolution

KW - of finite-size effects

KW - Resolution

U2 - 10.1016/j.nima.2010.06.235

DO - 10.1016/j.nima.2010.06.235

M3 - Paper in conference proceeding

VL - 634

SP - S138-S143

BT - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

PB - Elsevier

T2 - International Workshop on Neutron Optics

Y2 - 17 March 2010 through 19 March 2010

ER -

Analysing neutron scattering data using McStas virtual experiments

Abstract

Publication series

Conference

Subject classification (UKÄ)

Free keywords

Access to Document

Fingerprint

Cite this