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Title: Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS

Abstract

Quick-scan is an important technique for the time-resolved experiments to investigate structural variation in rapid chemical reactions or phase transitions under external perturbations in the material science. Our new quick-scan technique, implemented at BL3C1 of PLS, adopts PCI-bus instead of CAMAC based system which was used in the default quick-scan system. It uses a digital I/O and a counter/timer PCI board, which are connected to DCM encoder and to VFC, respectively. Since the trigger signal is originated for a fixed interval from the counter/timer board operating on 80 MHz internal clock, all channels are synchronized without dead or delay time. When the trigger interval was set as 20 ms for each data point, it took {approx}100 seconds for each full scan at 7 keV in the range of -200 {approx} 1000 eV, and the energy step sizes corresponded to {approx}0.7 eV. Overall performances of the Quick-XAFS technique will be demonstrated through an in situ electrochemical experiment for the Li-ion battery cathode material.

Authors:
; ; ;  [1]
  1. Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of)
Publication Date:
OSTI Identifier:
21049243
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436284; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABSORPTION SPECTROSCOPY; CATHODES; ELECTROCHEMISTRY; EV RANGE; FINE STRUCTURE; KEV RANGE; MHZ RANGE; PERFORMANCE; PHASE TRANSFORMATIONS; TIME DELAY; TIME RESOLUTION; VARIATIONS; X RADIATION; X-RAY DETECTION; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats

Sung, Nark-Eon, Kim, Min-Gyu, Choi, Sun-Hee, and Lee, Jay-Min. Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS. United States: N. p., 2007. Web. doi:10.1063/1.2436284.
Sung, Nark-Eon, Kim, Min-Gyu, Choi, Sun-Hee, & Lee, Jay-Min. Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS. United States. doi:10.1063/1.2436284.
Sung, Nark-Eon, Kim, Min-Gyu, Choi, Sun-Hee, and Lee, Jay-Min. Fri . "Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS". United States. doi:10.1063/1.2436284.
@article{osti_21049243,
title = {Implementation of Enhanced Quick-scan Technique for Time-Resolved XAFS Experiment at PLS},
author = {Sung, Nark-Eon and Kim, Min-Gyu and Choi, Sun-Hee and Lee, Jay-Min},
abstractNote = {Quick-scan is an important technique for the time-resolved experiments to investigate structural variation in rapid chemical reactions or phase transitions under external perturbations in the material science. Our new quick-scan technique, implemented at BL3C1 of PLS, adopts PCI-bus instead of CAMAC based system which was used in the default quick-scan system. It uses a digital I/O and a counter/timer PCI board, which are connected to DCM encoder and to VFC, respectively. Since the trigger signal is originated for a fixed interval from the counter/timer board operating on 80 MHz internal clock, all channels are synchronized without dead or delay time. When the trigger interval was set as 20 ms for each data point, it took {approx}100 seconds for each full scan at 7 keV in the range of -200 {approx} 1000 eV, and the energy step sizes corresponded to {approx}0.7 eV. Overall performances of the Quick-XAFS technique will be demonstrated through an in situ electrochemical experiment for the Li-ion battery cathode material.},
doi = {10.1063/1.2436284},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}
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