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Title: Assessment of an ORION-based experimental platform for measuring the opacity of high-temperature and high-density plasma

Abstract

The following provides an assessment of an experimental platform based on the ORION laser at AWE Aldermasten, England, for measuring the opacity of high-temperature and high-density LTE plasmas. The specific points addressed are (1) the range of electron density and temperature that can be achieved with short-pulse beams alone, as well as (2) by means of compression with a long-pulse beam; (3) the accuracy with which electron density, electron temperature, and absolute emissivity can be measured; (4) the use of pulse shaping to increase the sample density to above solid density; (5) the effect that target materials and target design have on maintaining spatial uniformity of the sample, and (6) the need for additional diagnostics to produce and characterize samples for decisive measurements.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1046099
Report Number(s):
LLNL-TR-560931
TRN: US1203748
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCURACY; COMPRESSION; DESIGN; ELECTRON DENSITY; ELECTRON TEMPERATURE; EMISSIVITY; LASERS; OPACITY; PLASMA; TARGETS

Citation Formats

Beiersdorfer, P, Schneider, M, and Shepherd, R. Assessment of an ORION-based experimental platform for measuring the opacity of high-temperature and high-density plasma. United States: N. p., 2012. Web. doi:10.2172/1046099.
Beiersdorfer, P, Schneider, M, & Shepherd, R. Assessment of an ORION-based experimental platform for measuring the opacity of high-temperature and high-density plasma. United States. doi:10.2172/1046099.
Beiersdorfer, P, Schneider, M, and Shepherd, R. Mon . "Assessment of an ORION-based experimental platform for measuring the opacity of high-temperature and high-density plasma". United States. doi:10.2172/1046099. https://www.osti.gov/servlets/purl/1046099.
@article{osti_1046099,
title = {Assessment of an ORION-based experimental platform for measuring the opacity of high-temperature and high-density plasma},
author = {Beiersdorfer, P and Schneider, M and Shepherd, R},
abstractNote = {The following provides an assessment of an experimental platform based on the ORION laser at AWE Aldermasten, England, for measuring the opacity of high-temperature and high-density LTE plasmas. The specific points addressed are (1) the range of electron density and temperature that can be achieved with short-pulse beams alone, as well as (2) by means of compression with a long-pulse beam; (3) the accuracy with which electron density, electron temperature, and absolute emissivity can be measured; (4) the use of pulse shaping to increase the sample density to above solid density; (5) the effect that target materials and target design have on maintaining spatial uniformity of the sample, and (6) the need for additional diagnostics to produce and characterize samples for decisive measurements.},
doi = {10.2172/1046099},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {6}
}

Technical Report:

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