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Title: O-d energetics scaling models for Z-pinch-driven hohlraums

Abstract

Wire array Z-pinches on the Z accelerator provide the most intense laboratory source of soft x-rays in the world. The unique combination of a highly-Planckian radiation source with high x-ray production efficiency (15% wall plug), large x-ray powers and energies ( >150 TW, {ge}1 MJ in 7 ns), large characteristic hohlraum volumes (0.5 to >10 cm{sup 3}), and long pulse-lengths (5 to 20 ns) may make Z-pinches a good match to the requirements for driving high-yield scale ICF capsules with adequate radiation symmetry and margin. The Z-pinch driven hohlraum approach of Hammer and Porter [Phys.Plasmas, 6, 2129(1999)] may provide a conservative and robust solution to the requirements for high yield, and is currently being studied on the Z accelerator. This paper describes a multiple region, 0-d hohlraum energetic model for Z-pinch driven hohlraums in four configurations. The authors observe consistency between the models and the measured x-ray powers and hohlraum wall temperatures to within {+-}20% in flux, for the four configurations.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
756441
Report Number(s):
SAND2000-1450J
TRN: US0003854
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Journal Name:
Lasers and Particle Beams
Additional Journal Information:
Other Information: Submitted to Lasers and Particle Beams; PBD: 8 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; X-RAY SOURCES; INDIRECT DRIVE ICF; INERTIAL FUSION DRIVERS; LONGITUDINAL PINCH; SOFT X RADIATION; SCALE MODELS

Citation Formats

CUNEO,MICHAEL E., VESEY,ROGER A., HAMMER,J.H., and PORTER,JOHN L. O-d energetics scaling models for Z-pinch-driven hohlraums. United States: N. p., 2000. Web.
CUNEO,MICHAEL E., VESEY,ROGER A., HAMMER,J.H., & PORTER,JOHN L. O-d energetics scaling models for Z-pinch-driven hohlraums. United States.
CUNEO,MICHAEL E., VESEY,ROGER A., HAMMER,J.H., and PORTER,JOHN L. Thu . "O-d energetics scaling models for Z-pinch-driven hohlraums". United States. https://www.osti.gov/servlets/purl/756441.
@article{osti_756441,
title = {O-d energetics scaling models for Z-pinch-driven hohlraums},
author = {CUNEO,MICHAEL E. and VESEY,ROGER A. and HAMMER,J.H. and PORTER,JOHN L.},
abstractNote = {Wire array Z-pinches on the Z accelerator provide the most intense laboratory source of soft x-rays in the world. The unique combination of a highly-Planckian radiation source with high x-ray production efficiency (15% wall plug), large x-ray powers and energies ( >150 TW, {ge}1 MJ in 7 ns), large characteristic hohlraum volumes (0.5 to >10 cm{sup 3}), and long pulse-lengths (5 to 20 ns) may make Z-pinches a good match to the requirements for driving high-yield scale ICF capsules with adequate radiation symmetry and margin. The Z-pinch driven hohlraum approach of Hammer and Porter [Phys.Plasmas, 6, 2129(1999)] may provide a conservative and robust solution to the requirements for high yield, and is currently being studied on the Z accelerator. This paper describes a multiple region, 0-d hohlraum energetic model for Z-pinch driven hohlraums in four configurations. The authors observe consistency between the models and the measured x-ray powers and hohlraum wall temperatures to within {+-}20% in flux, for the four configurations.},
doi = {},
journal = {Lasers and Particle Beams},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}