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Title: Laser-Induced Adiabat Shaping by Relaxation in Inertial Fusion Implosions

Abstract

The theory of laser-induced adiabat shaping is carried out for inertial confinement fusion (ICF) capsules. It is shown that a significant improvement of the stability characteristics of ICF implosions can be achieved by shaping the adiabat inside the imploding shell. The optimized adiabat profile has the maximum on the outer ablation surface to lower Rayleigh-Taylor growth rates, and the minimum on the shell inner surface for high compressibility and high neutron yields. Laser-induced adiabat shaping is produced via relaxation using a weak pre-pulse followed by laser shut-off and the main laser pulse.

Authors:
;
Publication Date:
Research Org.:
Laboratory for Laser Energetics (US)
Sponsoring Org.:
(US)
OSTI Identifier:
808740
Report Number(s):
DOE/SF-19460-476
328; 2003-41; TRN: US200307%%383
DOE Contract Number:  
FC03-92SF19460
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 11 Mar 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ABLATION; COMPRESSIBILITY; IMPLOSIONS; INERTIAL CONFINEMENT; LASERS; NEUTRONS; RELAXATION; STABILITY; ''LASER-INDUCED ADIABAT SHAPING BY RELAXATION IN INERTIAL FUSION IMPLOSIONS''.........(OAK/B202)

Citation Formats

Anderson, K, and Betti, R. Laser-Induced Adiabat Shaping by Relaxation in Inertial Fusion Implosions. United States: N. p., 2003. Web.
Anderson, K, & Betti, R. Laser-Induced Adiabat Shaping by Relaxation in Inertial Fusion Implosions. United States.
Anderson, K, and Betti, R. 2003. "Laser-Induced Adiabat Shaping by Relaxation in Inertial Fusion Implosions". United States.
@article{osti_808740,
title = {Laser-Induced Adiabat Shaping by Relaxation in Inertial Fusion Implosions},
author = {Anderson, K and Betti, R},
abstractNote = {The theory of laser-induced adiabat shaping is carried out for inertial confinement fusion (ICF) capsules. It is shown that a significant improvement of the stability characteristics of ICF implosions can be achieved by shaping the adiabat inside the imploding shell. The optimized adiabat profile has the maximum on the outer ablation surface to lower Rayleigh-Taylor growth rates, and the minimum on the shell inner surface for high compressibility and high neutron yields. Laser-induced adiabat shaping is produced via relaxation using a weak pre-pulse followed by laser shut-off and the main laser pulse.},
doi = {},
url = {https://www.osti.gov/biblio/808740}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 11 00:00:00 EST 2003},
month = {Tue Mar 11 00:00:00 EST 2003}
}

Technical Report:
Other availability
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