Abstract

We propose the direct heating of an imploded plasma core by ultra-intense lasers in inertial confinement fusion, to increase the heating coupling efficiency. In this scheme, both fast-electrons and fast-ions heat the plasma core. Experiments using this direct heating scheme has been carried out at GXII and LFEX laser facility at Osaka Univeristy. To model this direct heating scheme, we developed the 1D simulation model and carried out simulations using the experimental conditions. Comparison between results of the simulation and the experimental observations validates the simulation model. We show that even in the unoptimized experimental conditions used in simulations, our calculations show that the maximum temperature, 1.6 keV, of the CD plasma.

Details

Title
Direct heating of imploded plasma in the fast ignition
Author
Sunahara, Atsushi 1 ; Johzaki, Tomoyuki 2 ; Nagatomo, Hideo 3 ; Kunioki Mima 3 ; Shiraga, Hiroyuki 3 ; Azechi, Hiroshi 3 ; Mori, Yohitaga 4 ; Kitagawa, Yoneyoshi 4 

 Institute for Laser Technology, 2-6 Yamadaoka, Suita, Osaka 565-0871, JAPAN 
 Hiroshima University1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, JAPAN 
 Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, JAPAN 
 The graduate school for the creation of new photonics industries, 1955-1 Kurematsu-cho, Nishiku, Hamamatsu, Shizuoka, 431-1202, JAPAN 
Publication year
2016
Publication date
Mar 2016
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2575043450
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.