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Title: Software Tools for X-ray Photon Correlation and X-ray Speckle Visibility Spectroscopy

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Advanced Scientific Computing Research (SC-21)
OSTI Identifier:
1341711
Report Number(s):
BNL-113491-2017-CP
DOE Contract Number:
SC00112704
Resource Type:
Conference
Resource Relation:
Conference: 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) ; New York, NY ; 20160814 through 20160817
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING; Scilitt-beam; X-ray Speckle Visibility Spectroscopy; X-ray Photon Correlation Spectroscopy

Citation Formats

Abeykoon S., Zhang, Y, Dill, E, Caswell, T, Allan, D, Akilic, A, Wiegart, L, Wilkins, S, Heroux, A, Kleese van Dam, K, Sutton, M, and Fluerasu, A. Software Tools for X-ray Photon Correlation and X-ray Speckle Visibility Spectroscopy. United States: N. p., 2016. Web. doi:10.1109/NYSDS.2016.7747815.
Abeykoon S., Zhang, Y, Dill, E, Caswell, T, Allan, D, Akilic, A, Wiegart, L, Wilkins, S, Heroux, A, Kleese van Dam, K, Sutton, M, & Fluerasu, A. Software Tools for X-ray Photon Correlation and X-ray Speckle Visibility Spectroscopy. United States. doi:10.1109/NYSDS.2016.7747815.
Abeykoon S., Zhang, Y, Dill, E, Caswell, T, Allan, D, Akilic, A, Wiegart, L, Wilkins, S, Heroux, A, Kleese van Dam, K, Sutton, M, and Fluerasu, A. 2016. "Software Tools for X-ray Photon Correlation and X-ray Speckle Visibility Spectroscopy". United States. doi:10.1109/NYSDS.2016.7747815. https://www.osti.gov/servlets/purl/1341711.
@article{osti_1341711,
title = {Software Tools for X-ray Photon Correlation and X-ray Speckle Visibility Spectroscopy},
author = {Abeykoon S. and Zhang, Y and Dill, E and Caswell, T and Allan, D and Akilic, A and Wiegart, L and Wilkins, S and Heroux, A and Kleese van Dam, K and Sutton, M and Fluerasu, A},
abstractNote = {},
doi = {10.1109/NYSDS.2016.7747815},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8
}

Conference:
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  • A software tool-oriented approach has been adopted in the commissioning of the Advanced Photon Source (APS) at Argonne National Laboratory, particularly in the commissioning of the Positron Accumulator Ring (PAR). The general philosophy is to decompose a complicated procedure involving measurement, data processing, and control into a series of simpler steps, each accomplished by a generic toolkit program. The implementation is greatly facilitated by adopting the SDDS (self-describing data set protocol), which comes with its own toolkit. The combined toolkit has made accelerator physics measurements easier. For instance, the measurement of the optical functions of the PAR and the beamlinesmore » connected to it have been largely automated. Complicated measurements are feasible with a combination of tools running independently.« less
  • The generation of two X-ray pulses with tunable nanosecond scale time separations has recently been demonstrated at the Linac Coherent Light Source using an accelerator based technique. This approach offers the opportunity to extend X-ray Photon Correlation Spectroscopy techniques to the yet unexplored regime of nanosecond timescales by means of X-ray Speckle Visibility Spectroscopy. As the two pulses originate from two independent Spontaneous Amplified Stimulated Emission processes, the beam properties fluctuate from pulse pair to pulse pair, but as well between the individual pulses within a pair. However, two-pulse XSVS experiments require the intensity of the individual pulses to bemore » either identical in the ideal case, or with a accurately known intensity ratio. We present the design and performances of a non-destructive intensity diagnostic based on measurement of scattering from a transparent target using a high-speed photo-detector. Individual pulses within a pulse pair with time delays as short as 0.7 ns can be resolved. Moreover, using small angle coherent scattering, we characterize the averaged spatial overlap of the focused pulse pairs. Furthermore, the multi-shot average-speckle contrasts from individual pulses and pulse pairs are compared.« less
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  • In order to provide input for the development of predictive models of jet fuel degradation and deposition of solids, an experimental assembly for integrated photon correlation spectroscopy (PCS) and quartz crystal microbalance (QCM) measurements on heated fuels has been designed and tested. PCS provides in situ, real-time monitoring of particle formation in the liquid while the microbalance system yields complementary measurements of mass desposited on a surface. Materials examined include Jet A POSF-2827, a non-hydro-treated fuel, and Jet A POSF-2747 (high hydro-treated). POSF-2827 rapidly generates large numbers of submicron-diameter particles at modest temperatures (T=130-150{degrees}C). After a few hours, this processmore » leads to multiple scattering effects that complicate interpretation of PCS data. Mass deposition rates (as measured by the QCM) range from 0.2-0.9 {mu}g-cm{sup -2}-hr{sup -1} over the same temperature range. Lower particle formation and deposition rates are seen with the hydro-treated fuel.« less