Multispectral X-ray imaging with a multichannel Kirkpatrick-Baez microscope for imploded core temperature observation

The coupling efficiency of short-pulse ignition laser energy to hot-spot internal energy directly affects the feasibility of fast ignition. Experimental characterization of the hot spot has attracted much attention. Among temperature, density and neutron yield of fast ignition experiments, the tempe...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2014, Vol.68 (5), Article 129
Main Authors: Wang, Wei, Fang, Zhi-Heng, Jia, Guo, Yi, Sheng-Zhen, Tu, Yu-Chun, Zhu, Jing-Tao, Mu, Bao-Zhong, An, Hong-Hai, Wang, Rui-Rong, Xie, Zhi-Yong, Ye, Jun-Jian, Meng, Xiang-Fu, Zhou, Hua-Zhen, Wang, Chen, Lei, An-Le, Wang, Zhan-Shan, Fu, Si-Zu
Format: Article
Language:English
Subjects:
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Exact sciences and technology
Experimental methods and instrumentation for elementary-particle and nuclear physics
Fast ignition of compressed fusion fuels
Laser inertial confinement
Molecular
Neutron sources
Nuclear physics
Optical and Plasma Physics
Particle sources and targets
Physical Chemistry
Physics
Physics and Astronomy
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Quantum Information Technology
Quantum Physics
Regular Article
Spectroscopy/Spectrometry
Spintronics
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Summary:The coupling efficiency of short-pulse ignition laser energy to hot-spot internal energy directly affects the feasibility of fast ignition. Experimental characterization of the hot spot has attracted much attention. Among temperature, density and neutron yield of fast ignition experiments, the temperature of the hot spot has few available diagnostic methods. Multispectral X-ray imaging of hot-spot continuum emission is expected to give the time evolution of the electron temperature distribution. This article describes electron temperature determination from multispectral imaging, a dual-channel X-ray Kirkpatrick-Baez (KB) microscope designed for two-spectral imaging, and the experimental results of hot-core multispectral imaging of an imploded cone-shell target at the SG-II laser facility.
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2014-40523-y