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Disentangling detector data in XFEL studies of temporally resolved solution state chemistry

van Driel, Tim Brandt; Kjaer, Kasper LU ; Biasin, Elisa; Haldrup, Kristoffer; Lemke, Henrik Till and Nielsen, Martin Meedom (2015) In Faraday Discussions 177. p.443-465
Abstract
With the arrival of X-ray Free Electron Lasers (XFELs), 2D area detectors with a large dynamic range for detection of hard X-rays with fast readout rates are required for many types of experiments. Extracting the desired information from these detectors has been challenging due to unpredicted fluctuations in the measured images. For techniques such as time-resolved X-ray Diffuse Scattering (XDS), small differences in signal intensity are the starting point for analysis. Fluctuations in the total detected signal remain in the differences under investigation, obfuscating the signal. To correct such artefacts, Singular Value Decomposition (SVD) can be used to identify and characterize the observed detector fluctuations and assist in assigning... (More)
With the arrival of X-ray Free Electron Lasers (XFELs), 2D area detectors with a large dynamic range for detection of hard X-rays with fast readout rates are required for many types of experiments. Extracting the desired information from these detectors has been challenging due to unpredicted fluctuations in the measured images. For techniques such as time-resolved X-ray Diffuse Scattering (XDS), small differences in signal intensity are the starting point for analysis. Fluctuations in the total detected signal remain in the differences under investigation, obfuscating the signal. To correct such artefacts, Singular Value Decomposition (SVD) can be used to identify and characterize the observed detector fluctuations and assist in assigning some of them to variations in physical parameters such as X-ray energy and X-ray intensity. This paper presents a methodology for robustly identifying, separating and correcting fluctuations on area detectors based on XFEL beam characteristics, to enable the study of temporally resolved solution state chemistry on the femtosecond timescale. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Faraday Discussions
volume
177
pages
443 - 465
publisher
Royal Society of Chemistry
external identifiers
  • wos:000353034300026
  • scopus:84928141210
ISSN
1364-5498
DOI
10.1039/c4fd00203b
language
English
LU publication?
yes
id
a902eae8-03fc-48fd-8527-a4e8305e4dcc (old id 5401172)
date added to LUP
2015-05-19 11:07:13
date last changed
2017-01-01 03:06:18
@article{a902eae8-03fc-48fd-8527-a4e8305e4dcc,
  abstract     = {With the arrival of X-ray Free Electron Lasers (XFELs), 2D area detectors with a large dynamic range for detection of hard X-rays with fast readout rates are required for many types of experiments. Extracting the desired information from these detectors has been challenging due to unpredicted fluctuations in the measured images. For techniques such as time-resolved X-ray Diffuse Scattering (XDS), small differences in signal intensity are the starting point for analysis. Fluctuations in the total detected signal remain in the differences under investigation, obfuscating the signal. To correct such artefacts, Singular Value Decomposition (SVD) can be used to identify and characterize the observed detector fluctuations and assist in assigning some of them to variations in physical parameters such as X-ray energy and X-ray intensity. This paper presents a methodology for robustly identifying, separating and correcting fluctuations on area detectors based on XFEL beam characteristics, to enable the study of temporally resolved solution state chemistry on the femtosecond timescale.},
  author       = {van Driel, Tim Brandt and Kjaer, Kasper and Biasin, Elisa and Haldrup, Kristoffer and Lemke, Henrik Till and Nielsen, Martin Meedom},
  issn         = {1364-5498},
  language     = {eng},
  pages        = {443--465},
  publisher    = {Royal Society of Chemistry},
  series       = {Faraday Discussions},
  title        = {Disentangling detector data in XFEL studies of temporally resolved solution state chemistry},
  url          = {http://dx.doi.org/10.1039/c4fd00203b},
  volume       = {177},
  year         = {2015},
}