Document Detail


Diagnosing residual motion via the x-ray self emission from indirectly driven inertial confinement implosions.
MedLine Citation:
PMID:  25430351     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In an indirectly driven implosion, non-radial translational motion of the compressed fusion capsule is a signature of residual kinetic energy not coupled into the compressional heating of the target. A reduction in compression reduces the peak pressure and nuclear performance of the implosion. Measuring and reducing the residual motion of the implosion is therefore necessary to improve performance and isolate other effects that degrade performance. Using the gated x-ray diagnostic, the x-ray Bremsstrahlung emission from the compressed capsule is spatially and temporally resolved at x-ray energies of >8.7 keV, allowing for measurements of the residual velocity. Here details of the x-ray velocity measurement and fitting routine will be discussed and measurements will be compared to the velocities inferred from the neutron time of flight detectors.
Authors:
A Pak; J E Field; L R Benedetti; J Caggiano; R Hatarik; N Izumi; S F Khan; J Knauer; T Ma; B K Spears; R P J Town; D K Bradley
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Review of scientific instruments     Volume:  85     ISSN:  1089-7623     ISO Abbreviation:  Rev Sci Instrum     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-11-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0405571     Medline TA:  Rev Sci Instrum     Country:  United States    
Other Details:
Languages:  eng     Pagination:  11E605     Citation Subset:  IM    
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