Comparative properties of the interior and blowoff plasmas in a dynamic hohlraum

Apruzese, J. P.; Clark, R. W.; Davis, J.; Sanford, T. W.  L.; Nash, T. J.; Mock, R. C.; Peterson, D. L.

doi:10.1063/1.2718907

Title: Comparative properties of the interior and blowoff plasmas in a dynamic hohlraum

Journal Article · Fri Apr 20 00:00:00 EDT 2007 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2718907· OSTI ID:1427013

Apruzese, J. P. ^[1]; Clark, R. W. ^[1]; Davis, J. ^[1]; Sanford, T. W. L. ^[2]; Nash, T. J. ^[2]; Mock, R. C. ^[2]; Peterson, D. L. ^[3]

Naval Research Lab. (NRL), Washington, DC (United States). Plasma Physics Division
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

A Dynamic Hohlraum (DH) is formed when arrays of tungsten wires driven by a high-current pulse implode and compress a cylindrical foam target. The resulting radiation is confined by the wire plasma and forms an intense, ~200–250 eV Planckian x-ray source. The internal radiation can be used for indirect drive inertial confinement fusion. The radiation emitted from the ends can be employed for radiation flow and material interaction studies. This external radiation is accompanied by an expanding blowoff plasma. In this paper, we have diagnosed this blowoff plasma using K-shell spectra of Mg tracer layers placed at the ends of some of the Dynamic Hohlraum targets. A similar diagnosis of the interior hohlraum has been carried out using Al and Mg tracers placed at 2mm depth from the ends. It is found that the blowoff plasma is about 20–25% as dense as that of the interior hohlraum, and that its presence does not significantly affect the outward flow of the nearly Planckian radiation field generated in the hohlraum interior. Finally, however, the electron temperature of the blowoff region, at ~120 eV, is only about half that of the interior hohlraum plasma.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1427013

Report Number(s):: SAND2007-0240J; 638691

Journal Information:: Physics of Plasmas, Vol. 14, Issue 4; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 2 works

Citation information provided by
Web of Science

References (24)

Spectroscopic Diagnosis of Nested-Wire-Array Dynamics and Interpenetration at 7 MA Deeney, C.; Apruzese, J. P.; Coverdale, C. A. Physical Review Letters, Vol. 93, Issue 15 https://doi.org/10.1103/PhysRevLett.93.155001	journal	October 2004
Diagnosed internal temperatures and shock evolution provide insight on dynamic- Hohlraum’s axial radiation production and asymmetry Sanford, T. W. L.; Nash, T. J.; Mock, R. C. Physics of Plasmas, Vol. 13, Issue 1 https://doi.org/10.1063/1.2148911	journal	January 2006
Evidence and mechanisms of axial-radiation asymmetry in dynamic hohlraums driven by wire-array Z pinches Sanford, T. W. L.; Nash, T. J.; Mock, R. C. Physics of Plasmas, Vol. 12, Issue 2 https://doi.org/10.1063/1.1850479	journal	February 2005
Z pinch driven inertial confinement fusion target physics research at Sandia National Laboratories Leeper, R. J.; Alberts, T. E.; Asay, J. R. Nuclear Fusion, Vol. 39, Issue 9Y https://doi.org/10.1088/0029-5515/39/9Y/306	journal	September 1999
Initial results for an argon Z pinch using a double-shell gas puff Sze, H.; Coleman, P. L.; Failor, B. H. Physics of Plasmas, Vol. 7, Issue 10 https://doi.org/10.1063/1.1288491	journal	January 2000
K-shell radiation physics in the ultrahigh optical depth pinches of the Z generator Apruzese, J. P.; Pulsifer, P. E.; Davis, J. Physics of Plasmas, Vol. 5, Issue 12 https://doi.org/10.1063/1.873185	journal	December 1998
Hot Dense Capsule-Implosion Cores Produced by $Z$ -Pinch Dynamic Hohlraum Radiation Bailey, J. E.; Chandler, G. A.; Slutz, S. A. Physical Review Letters, Vol. 92, Issue 8, Article No. 085002 https://doi.org/10.1103/PhysRevLett.92.085002	journal	February 2004
Diagnosing the properties of dynamic Hohlraums with tracer spectroscopy (invited) Apruzese, J. P.; Clark, R. W.; Davis, J. Review of Scientific Instruments, Vol. 77, Issue 10 https://doi.org/10.1063/1.2219436	journal	October 2006
Unexpected axial asymmetry in radiated power from high-temperature dynamic-hohlraum x-ray sources Sanford, T. W. L.; Mock, R. C.; Leeper, R. J. Physics of Plasmas, Vol. 10, Issue 5 https://doi.org/10.1063/1.1562630	journal	May 2003
Length scaling of dynamic-hohlraum axial radiation Sanford, T. W. L.; Mock, R. C.; Slutz, S. A. Physics of Plasmas, Vol. 10, Issue 12 https://doi.org/10.1063/1.1625938	journal	December 2003
Radiation environments produced by plasma z-pinch stagnation on central targets Brownell, J. H.; Bowers, R. L.; McLenithan, K. D. Physics of Plasmas, Vol. 5, Issue 5 https://doi.org/10.1063/1.872879	journal	May 1998
Time- and space-resolved spectroscopy of dynamic hohlraum interiors Bailey, J. E.; Chandler, G. A.; Rochau, G. A. High Energy Density Physics, Vol. 1, Issue 1 https://doi.org/10.1016/j.hedp.2005.08.004	journal	December 2005
Diagnosing dynamic hohlraums with tracer absorption line spectroscopy Apruzese, J. P.; Clark, R. W.; Kepple, P. C. Physics of Plasmas, Vol. 12, Issue 1 https://doi.org/10.1063/1.1834917	journal	January 2005
Integrated two-dimensional simulations of dynamic hohlraum driven inertial fusion capsule implosions Slutz, S. A.; Peterson, K. J.; Vesey, R. A. Physics of Plasmas, Vol. 13, Issue 10 https://doi.org/10.1063/1.2354587	journal	October 2006
Two‐dimensional modeling of magnetically driven Rayleigh–Taylor instabilities in cylindrical Z pinches Peterson, D. L.; Bowers, R. L.; Brownell, J. H. Physics of Plasmas, Vol. 3, Issue 1 https://doi.org/10.1063/1.871862	journal	January 1996
X-Ray Imaging Measurements of Capsule Implosions Driven by a $Z$ -Pinch Dynamic Hohlraum Bailey, J. E.; Chandler, G. A.; Slutz, S. A. Physical Review Letters, Vol. 89, Issue 9 https://doi.org/10.1103/PhysRevLett.89.095004	journal	August 2002
Soft-x-ray and x-ray ultraviolet radiation from high-density aluminum plasmas Duston, D.; Davis, J. Physical Review A, Vol. 23, Issue 5 https://doi.org/10.1103/PhysRevA.23.2602	journal	May 1981
Dynamic hohlraum radiation hydrodynamics Bailey, J. E.; Chandler, G. A.; Mancini, R. C. Physics of Plasmas, Vol. 13, Issue 5 https://doi.org/10.1063/1.2177640	journal	May 2006
High-temperature dynamic hohlraums on the pulsed power driver Z Nash, T. J.; Derzon, M. S.; Chandler, G. A. Physics of Plasmas, Vol. 6, Issue 5 https://doi.org/10.1063/1.873457	journal	May 1999
$Z$ -Pinch-Generated X Rays Demonstrate Potential for Indirect-Drive ICF Experiments Sanford, T. W. L.; Olson, R. E.; Bowers, R. L. Physical Review Letters, Vol. 83, Issue 26 https://doi.org/10.1103/PhysRevLett.83.5511	journal	December 1999
K-shell line ratios and powers for diagnosing cylindrical plasmas of neon, aluminum, argon, and titanium Apruzese, J. P.; Whitney, K. G.; Davis, J. Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 57, Issue 1 https://doi.org/10.1016/S0022-4073(96)00097-0	journal	January 1997
Dynamics of a Z-pinch x-ray source for heating inertial-confinement-fusion relevant hohlraums to 120–160 eV Sanford, T. W. L.; Olson, R. E.; Mock, R. C. Physics of Plasmas, Vol. 7, Issue 11 https://doi.org/10.1063/1.1316087	journal	November 2000
Dynamics and characteristics of a 215-eV dynamic-hohlraum x-ray source on Z Sanford, T. W. L.; Lemke, R. W.; Mock, R. C. Physics of Plasmas, Vol. 9, Issue 8 https://doi.org/10.1063/1.1489676	journal	August 2002
Trends in radiation production from dynamic-hohlraums driven by single and nested wire arrays Sanford, T. W. L.; Lemke, R. W.; Mock, R. C. Physics of Plasmas, Vol. 10, Issue 8 https://doi.org/10.1063/1.1587708	journal	August 2003

Cited By (1)

A review of the dense Z -pinch Haines, M. G. Plasma Physics and Controlled Fusion, Vol. 53, Issue 9 https://doi.org/10.1088/0741-3335/53/9/093001	journal	June 2011

Similar Records

Comparative properties of the interior and blowoff plasmas in a dynamic hohlraum

Journal Article · Sun Apr 15 00:00:00 EDT 2007 · Physics of Plasmas · OSTI ID:1427013

Apruzese, J P; Clark, R W; Davis, J; +4 more

Diagnosing the properties of dynamic Hohlraums with tracer spectroscopy (invited)

Journal Article · Sun Oct 15 00:00:00 EDT 2006 · Review of Scientific Instruments · OSTI ID:1427013

Apruzese, J P; Clark, R W; Davis, J; +4 more

Time- and space-resolved spectroscopy of dynamic hohlraum interiors.

Journal Article · Sat Jan 01 00:00:00 EST 2005 · Proposed for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer. · OSTI ID:1427013

Maron, Yitzhak; Dunham, Gregory Sham; Lemke, Raymond William; +12 more

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
materials
disperse systems
metals
alkaline earth metals
Hohlraum
metallurgy
pure metals
transition metals
ionospheric physics
carbon

Title: Comparative properties of the interior and blowoff plasmas in a dynamic hohlraum

Citation Formats

References (24)

Cited By (1)

Similar Records

Related Subjects