Open AccessImprinting and consequent Rayleigh-Taylor growth
Author(s) -
Zhiheng Fang,
Wei Wang,
Jia Guo,
Dong Jia-Qin,
Jun Xiong,
Wudi Zheng,
Yongsheng Li,
Luo Ping-Qing,
Sizu Fu,
Yuan Gu,
Shiji Wang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.7057
Subject(s) - imprinting (psychology) , inertial confinement fusion , laser , materials science , optics , rayleigh scattering , planar , intensity (physics) , rayleigh–taylor instability , physics , mechanics , biology , computer science , biochemistry , gene , instability , computer graphics (images)
In direct drive inertial confinement fusion surface perturbations seeded by imprint from laser intensity variations play an important role in Rayleigh-TaylorRT growth. Laser imprinting and consequent RT growth in planar CH targets driven by different pulse shapes have been investigated. The experimental results reveal that the range of density modulation induced by laser imprinting is larger when the driving laser has lower foot intensity and rises more slowly. Enhancing the pre-pulse intensity can restrain the effect of laser imprinting notablely.