Diagnostic technique for measuring fusion reaction rate for inertial confinement fusion experiments at Shen Guang-III prototype laser facility

doi:10.1088/1674-1056/22/11/115204

Abstract A study is conducted using a two-dimensional simulation program (Lared-s) with the goal of developing a technique to evaluate the effect of Rayleigh–Taylor growth in a neutron fusion reaction region. Two peaks of fusion reaction rate are simulated by using a two-dimensional simulation program (Lared-s) and confirmed by the experimental results. A neutron temporal diagnostic (NTD) system is developed with a high temporal resolution of ～ 30 ps at the Shen Guang-III (SG-III) prototype laser facility in China, to measure the fusion reaction rate history. With the shape of neutron reaction rate curve and the spherical harmonic function in this paper, the degree of Rayleigh–Taylor growth and the main source of the neutron yield in our experiment can be estimated qualitatively. This technique, including the diagnostic system and the simulation program, may provide important information for obtaining a higher neutron yield in implosion experiments of inertial confinement fusion.

Keywords: inertial confinement fusion Rayleigh–Taylor growth neutron fusion reaction implosion

Received: 24 October 2012
Revised: 27 April 2013
Accepted manuscript online:

PACS:	52.57.Fg	(Implosion symmetry and hydrodynamic instability (Rayleigh-Taylor, Richtmyer-Meshkov, imprint, etc.))
	42.87.-d	(Optical testing techniques)
	52.57.-z	(Laser inertial confinement)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10805041), the Science and Technology on Plasma Physics Laboratory, China (Grant No. 9140C6801021001), and the Science and Technology Development Foundation of China Academy of Engineering Physics, China (Grant No. 2011B0102020).

Corresponding Authors: Wang Feng
E-mail: xiaozei7566@163.com

Cite this article:

Wang Feng (王峰), Peng Xiao-Shi (彭晓世), Kang Dong-Guo (康洞国), Liu Shen-Ye (刘慎业), Xu Tao (徐涛) Diagnostic technique for measuring fusion reaction rate for inertial confinement fusion experiments at Shen Guang-III prototype laser facility 2013 Chin. Phys. B 22 115204

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Diagnostic technique for measuring fusion reaction rate for inertial confinement fusion experiments at Shen Guang-III prototype laser facility

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