Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47292
Title: Analysis of time-resolved argon line spectra from OMEGA direct-drive implosions
Authors: Florido, R. 
Nagayama, T.
Mancini, R. C.
Tommasini, R.
Delettrez, J. A.
Regan, S. P.
Smalyuk, V. A.
Rodriguez, R. 
Gil, J. M. 
UNESCO Clasification: 220410 Física de plasmas
Keywords: Shell Spectroscopy
Core Conditions
Profiles
Opacity
Plasmas
Issue Date: 2008
Publisher: American Institute of Physics (AIP)
Journal: Review of Scientific Instruments 
Conference: 17th Topical Conference on High-Temperature Plasma Diagnostics
Abstract: We discuss the observation and data analysis of argon K-shell line spectra from argon-doped deuterium-filled OMEGA direct-drive implosion cores based on data recorded with two streaked crystal spectrometers. The targets were 870μm in diameter, 27μm wall thickness plastic shells filled with 20atm of deuterium gas, and a tracer amount of argon for diagnostic purposes. The argon K-shell line spectrum is primarily emitted at the collapse of the implosion and its analysis provides a spectroscopic diagnostic of the core implosion conditions. The observed spectra includes the Heα, Lyα, Heβ, Heγ, Lyβ, and Lyγ line emissions and their associated He- and Li-like satellites thus covering a broad photon energy range from 3100to4200eV with a spectral resolution power of approximately 500. The data analysis relies on detailed atomic and spectral models that take into account nonequilibrium collisional-radiative atomic kinetics, Stark-broadened line shapes, and radiation transport calculations.
URI: http://hdl.handle.net/10553/47292
ISSN: 0034-6748
DOI: 10.1063/1.2965779
Source: Review Of Scientific Instruments [ISSN 0034-6748], v. 79 (10)
Appears in Collections:Actas de congresos
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