Back to Search Start Over

Plasma mirror implementation on LFEX laser for ion and fast electron fast ignition

Authors :
Kazuki Matsuo
S. Tosaki
Kotaro Kondo
Yasunobu Arikawa
Sadaoki Kojima
Mitsuo Nakai
Alessio Morace
S. Sakata
Akito Sagisaka
Hiroyuki Shiraga
Akifumi Yogo
Yuki Abe
Takahisa Jitsuno
Alexander S. Pirozhkov
Shinsuke Fujioka
N. Miyanaga
Seung Ho Lee
Takayoshi Norimatsu
Hiroaki Nishimura
Hiroshi Azechi
Source :
Nuclear Fusion. 57:126018
Publication Year :
2017
Publisher :
IOP Publishing, 2017.

Abstract

In this work we report the successful implementation of plasma mirror (PM) technology on an LFEX laser facility at the Institute of Laser Engineering, Osaka University. The LFEX laser pulse was successfully refocused at the target chamber center (TCC) by means of a spherical plasma mirror, resulting in 5 × 1018 W cm−2 laser intensity, with 45% reflectivity at a laser flux of about 90 J cm−2 on the PM. Experimental results show stable focusing and pointing of the LFEX pulse after PM refocusing. The contrast improvement was demonstrated by both cooler fast electron slope temperature distribution as well as by the ability to shoot sub-µm plastic foils obtaining proton beams with maximum energy exceeding 20 MeV. Experimental results are qualitatively reproduced by 2D particle in cell simulations.

Details

ISSN :
17414326 and 00295515
Volume :
57
Database :
OpenAIRE
Journal :
Nuclear Fusion
Accession number :
edsair.doi...........6891e8c6863e1e24aefdb168fc67eef5
Full Text :
https://doi.org/10.1088/1741-4326/aa74ec