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Title: Strategies to minimize the influence of instrumental bias in neutron scattering

Abstract

The influence of instrumental bias on neutron scattering measurements that involve a change between two experimental states is studied analytically and computationally. Different sources of bias were applied to an unperturbed (perfect) data stream. The influence of bias on the measurement was quantified and means to mitigate it is demonstrated. We find frequent changes of state are better than fewer, and evenly alternating between changes of state is often unwise.

Authors:
 [1];  [2]
+ Show Author Affiliations
  1. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22).; USDOE
OSTI Identifier:
1542227
Alternate Identifier(s):
OSTI ID: 1702585
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 941; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Neutron scattering; Instrumentation; Data collection

Citation Formats

Fitzsimmons, M. R., and Charlton, T. R. Strategies to minimize the influence of instrumental bias in neutron scattering. United States: N. p., 2019. Web. doi:10.1016/j.nima.2019.06.071.
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Fitzsimmons, M. R., & Charlton, T. R. Strategies to minimize the influence of instrumental bias in neutron scattering. United States. https://doi.org/10.1016/j.nima.2019.06.071
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Fitzsimmons, M. R., and Charlton, T. R. Tue . "Strategies to minimize the influence of instrumental bias in neutron scattering". United States. https://doi.org/10.1016/j.nima.2019.06.071. https://www.osti.gov/servlets/purl/1542227.
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@article{osti_1542227,
title = {Strategies to minimize the influence of instrumental bias in neutron scattering},
author = {Fitzsimmons, M. R. and Charlton, T. R.},
abstractNote = {The influence of instrumental bias on neutron scattering measurements that involve a change between two experimental states is studied analytically and computationally. Different sources of bias were applied to an unperturbed (perfect) data stream. The influence of bias on the measurement was quantified and means to mitigate it is demonstrated. We find frequent changes of state are better than fewer, and evenly alternating between changes of state is often unwise.},
doi = {10.1016/j.nima.2019.06.071},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 941,
place = {United States},
year = {Tue Jul 09 00:00:00 EDT 2019},
month = {Tue Jul 09 00:00:00 EDT 2019}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.nima.2019.06.071
Copyright Statement
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Figures / Tables:

Figure 1 Figure 1: Power spectra of 721,852 neutron events from the 60 Hz source and 3,317,409 events from the 30 Hz source.
All figures and tables (13 total)
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    Figures / Tables found in this record:

    Figure 1 (p. 18)figure
    Figure 2 (p. 19)figure
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    Figure 13 (p. 30)figure
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