Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Advances in utilizing event based data structures for neutron scattering experiments

Journal Article · · Review of Scientific Instruments
DOI: https://doi.org/10.1063/1.5034782 · OSTI ID:1486961
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
+ Show Author Affiliations

This article strives to expand on existing work to demonstrate advancements in data processing made available using event mode measurements. Most spallation neutron sources in the world have data acquisition systems that provide event recording. The new science that is enabled by utilizing event mode has only begun to be explored. In the past, these studies were difficult to perform because histograms forced dealing with either large chunks of time or a large number of files. With event based data collection, data can be explored and rebinned long after the measurement has completed. This article will review some of the principles of event data and how the method opens up new possibilities for in situ measurements, highlighting techniques that can be used to explore changes in the data. We also demonstrate the statistical basis for determining data quality and address the challenge of determining how long to measure mid-measurement. Finally, we demonstrate a model independent method of grouping data via hierarchical clustering methods that can be used to improve calibration, reduction, and data exploration.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1486961
Alternate ID(s):
OSTI ID: 1471794
Journal Information:
Review of Scientific Instruments, Vol. 89, Issue 9; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (19)

Event-based processing of neutron scattering data
  • Peterson, Peter F.; Campbell, Stuart I.; Reuter, Michael A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 803 https://doi.org/10.1016/j.nima.2015.09.016
journal December 2015
Comparison of dissimilarity measures for cluster analysis of X-ray diffraction data from combinatorial libraries journal February 2017
Fast optimal leaf ordering for hierarchical clustering journal June 2001
First In Situ Lattice Strains Measurements Under Load at VULCAN journal October 2010
Synthesis and structure of synthetically pure and deuterated amorphous (basic) calcium carbonates journal January 2017
Hierarchical Density Estimates for Data Clustering, Visualization, and Outlier Detection
  • Campello, Ricardo J. G. B.; Moulavi, Davoud; Zimek, Arthur
  • ACM Transactions on Knowledge Discovery from Data, Vol. 10, Issue 1 https://doi.org/10.1145/2733381
journal July 2015
The Nanoscale Ordered MAterials Diffractometer NOMAD at the Spallation Neutron Source SNS
  • Neuefeind, Jörg; Feygenson, Mikhail; Carruth, John
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 287 https://doi.org/10.1016/j.nimb.2012.05.037
journal September 2012
Resolution of VISION, a crystal-analyzer spectrometer
  • Seeger, Philip A.; Daemen, Luke L.; Larese, John Z.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 604, Issue 3 https://doi.org/10.1016/j.nima.2009.03.204
journal June 2009
Combinatorial appraisal of transition states for in situ pair distribution function analysis journal November 2017
Guidelines for evaluating and expressing the uncertainty of NIST measurement results report January 1994
Heterogeneous nucleation in Zr-Cu-Al-Ag metallic glasses triggered by quenched-in metastable crystals - A time-resolved neutron diffraction study journal December 2018
In Situ Neutron Diffraction Studies of the Flux Crystal Growth of the Reduced Molybdates La 4 Mo 2 O 11 and Ce 4 Mo 2 O 11 : Revealing Unexpected Mixed-Valent Transient Intermediates and Determining the Sequence of Events during Crystal Growth journal January 2018
Beam power nonlinearity: twice the power, but not twice the neutrons? journal May 2018
Neutron scattering lengths and cross sections journal January 1992
Testing different methods for estimating uncertainties on Rietveld refined parameters using SrRietveld journal December 2011
A high precision gas flow cell for performing in situ neutron studies of local atomic structure in catalytic materials journal March 2017
Calculation of full-pattern neutron time-of-flight (TOF) powder diffraction patterns journal August 2017
Correction of neutron scattering lengths for electromagnetic interactions journal March 1996
Capturing the Details of N 2 Adsorption in Zeolite X Using Stroboscopic Isotope Contrasted Neutron Total Scattering journal December 2017

Figures / Tables (10)

FIG. 1(p. 3)figure FIG. 1
FIG. 3(p. 4)figure FIG. 3
Fig. 2(p. 4)figure Fig. 2
FIG. 4(p. 5)figure FIG. 4
FIG. 5(p. 6)figure FIG. 5
FIG. 6(p. 7)figure FIG. 6
FIG. 7(p. 7)figure FIG. 7
FIG. 8(p. 7)figure FIG. 8
FIG. 9(p. 8)figure FIG. 9
FIG. 10(p. 9)figure FIG. 10

Similar Records

Data Processing for the SNS EQ-SANS Diffractometer
Journal Article · 2011 · Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · OSTI ID:1092159
Challenges and Opportunities of User-Level File Systemsfor HPC
Technical Report · 2017 · OSTI ID:1424647
Production Application Performance Data Streaming for System Monitoring
Journal Article · 2019 · ACM Transactions on Modeling and Performance Evaluation of Computing Systems · OSTI ID:1570222
+1 more

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
neutron scattering
Poisson statistics
clustering
machine learning
diffraction