Open AccessExperimental investigation of supersonic x-ray transport in radiatively heated CH foam cylinders on ShenguangⅡ facilities
Author(s) -
Jiang Shao-En,
Keye Sun,
Zheng Zhi-Jian,
Yongkun Ding,
Jiamin Yang,
Miao Wen-Yong,
Yanli Cui,
Chen Jiu-Sen,
Yu Yan-Ning
Publication year - 2004
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.53.3413
Subject(s) - hohlraum , radiation , supersonic speed , plasma , opacity , physics , optics , breakout , laser , radiant energy , materials science , nuclear physics , mechanics , finance , economics
Supersonic radiation transport, where the ratio of the radiation wave front velocity to the material sound speed was more than 10, has been investigated experimentally in the low-density foam. Four beams of 0.35μm laser with pulse d uration of 1ns and 2kJ of total energy entered into a hohlraum to create intense x-ray radiation that heated C66H12</sub aerogel of foams of varying length a nd density on the Shenguang Ⅱ laser facility. The soft x-ray spectrometers (Dante) prov i ded the time delay and the velocity of the x-ray radiation propagation at three ener gies of 80, 250 and 400eV. The x-ray spectra and radiation temperature resolved temporally were simultaneously obtained with Dante. An x-ray streaked camera vie wing the face on at the energy of 700eV provided clean signatures of the radiat i on breakout from the rear of the foam sample and plasma filling in the cylindric al hohlraum. The model of `leakage pipe' on radiation transport was used to anal yze the experimental results, and the data and model were basically consistent.