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Ultrahigh-pressure experiment with a motor-driven diamond anvil cell.
MedLine Citation:
PMID:  22611097     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A Pt sample was compressed to ultrahigh pressures in a diamond anvil cell (DAC) using a motorized gearbox to change pressure remotely from outside the synchrotron x-ray hutch. In situ angle-dispersive x-ray diffraction (XRD) was used to determine pressure from known equations of state (EOS). The sample position was unperturbed during motor-driven pressure changes. By eliminating the need to realign the sample to the x-ray position after each pressure increment, 142 XRD patterns could be collected continuously over the course of three hours, and the maximum pressure of 230 GPa was reached before diamond failure ended the experiment. We demonstrate the advantages of this motor-driven assembly for smooth and efficient pressure change, and the possibility for fine pressure and temporal resolution.
Authors:
Wendy L Mao; Ho-Kwang Mao
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Publication Detail:
Type:  Journal Article     Date:  2006-06-09
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  18     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2012-05-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  S1069-73     Citation Subset:  -    
Affiliation:
Lujan Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, NM 87544, USA.
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