Open AccessMeasurement of implosion trajectory for hohlraum-radiative-driven
Author(s) -
Jianjun Dong,
Zhurong Cao,
Zhenghua Yang,
Cheng Bo-Lun,
Tianxuan Huang,
Den Bo,
Liu Shengye,
Jiang Shao-En,
Yongkun Ding,
Yi Sheng-Zheng,
Mu Baozhong
Publication year - 2012
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.61.155208
Subject(s) - implosion , hohlraum , physics , streak camera , national ignition facility , inertial confinement fusion , optics , laser , radiative transfer , core (optical fiber) , plasma , ignition system , nuclear physics , thermodynamics
The measurement of implosion velocity is the core problem of inertial confinement fusion and it is also a key quantity of estimation of fusion ignition. A clear implosion trajectory X-ray image of hohlraum-radiative-driven CH-capsule is obtained in Sheng-GuangII laser facility with 1600 J laser energy, triple frequency and 1 ns pulse width. KB-microscope coupled with X-ray streak camera whose temporal resolution is about 10 ps is used for diagnosis. The maximal velocity of implosion is about 160 km/s which can be extracted from the experimental trajectory data. The experimental data are compared with Multi1D simulation results of velocity and both are in good agreement with each other.