Dynamics of a Z Pinch X Ray Source for Heating ICF Relevant Hohlraums to 120-160eV [electronic resource]
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| Online Access: |
Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2000.
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| Abstract: | A z-pinch radiation source has been developed that generates 60 ± 20 KJ of x-rays with a peak power of 13 ± 4 TW through a 4-mm diameter axial aperture on the Z facility. The source has heated NIF (National Ignition Facility)-scale (6-mm diameter by 7-mm high) hohlraums to 122 ± 6 eV and reduced-scale (4-mm diameter by 4-mm high) hohlraums to 155 ± 8 eV -- providing environments suitable for indirect-drive ICF (Inertial Confinement Fusion) studies. Eulerian-RMHC (radiation-hydrodynamics code) simulations that take into account the development of the Rayleigh-Taylor instability in the r-z plane provide integrated calculations of the implosion, x-ray generation, and hohlraum heating, as well as estimates of wall motion and plasma fill within the hohlraums. Lagrangian-RMHC simulations suggest that the addition of a 6 mg/cm³ CH₂ fill in the reduced-scale hohlraum decreases hohlraum inner-wall velocity by ∼40% with only a 3--5% decrease in peak temperature, in agreement with measurements. |
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| Item Description: | Published through SciTech Connect. 07/10/2000. "sand2000-1565j" Physics of Plasmas FT. SH,THOMAS J.; SANFORD,THOMAS W. L.; MOCK,RAYMOND CECIL; RUGGLES,LAURENCE E.; SIMPSON,WALTER W.; PETERSON,D.L.; BOWERS,R.L.; MATUSKA,W.; LEEPER,RAMON J.; CHANDLER,GORDON A.; OLSON,RICHARD E.; STRUVE,KENNETH W. |
| Physical Description: | 50 pages : digital, PDF file. |