Document Detail


In situ EXAFS, X-ray diffraction and photoluminescence for high-pressure studies.
MedLine Citation:
PMID:  16609204     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A new facility for simultaneous extended X-ray absorption of fine structure (EXAFS), X-ray diffraction and photoluminescence measurements under high pressures has been developed for use on station 9.3 at the Daresbury Laboratory Synchrotron Radiation Source. This high-pressure facility can be used at any suitable beamline at a synchrotron source. Full remote operation of the rig allows simultaneous collection of optical and structural data while varying the pressure. The set-up is very flexible and can be tailored for a particular experiment, such as time- or temperature-dependent measurements. A new approach to the collection of high-pressure EXAFS data is also presented. The approach significantly shortens the experimental times and allows a dramatic increase in the quality of EXAFS data collected. It also opens up the possibility for EXAFS data collection at any pressure which can be generated using a diamond cell. The high quality of data collected is demonstrated with a GaN case study. Particular attention will be paid to the use of energy-dispersive EXAFS and quick-scanning EXAFS techniques under pressure.
Authors:
A V Sapelkin; S C Bayliss; D Russell; S M Clark; A J Dent
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Publication Detail:
Type:  Journal Article     Date:  2000-07-01
Journal Detail:
Title:  Journal of synchrotron radiation     Volume:  7     ISSN:  0909-0495     ISO Abbreviation:  J Synchrotron Radiat     Publication Date:  2000 Jul 
Date Detail:
Created Date:  2006-04-12     Completed Date:  2006-05-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9888878     Medline TA:  J Synchrotron Radiat     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  257-61     Citation Subset:  -    
Affiliation:
Solid State Research Centre, De Montfort University, Leicester LE1 9BH, UK. sapelkin@dmu.ac.uk
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