强激光与粒子束, 2010, 22 (4): 870, 网络出版: 2010-06-22   

“阳”加速器上的Z箍缩诊断技术

Diagnostics on Yang accelerator for Z-pinch experiment
作者单位
中国工程物理研究院 流体物理研究所,四川 绵阳 621900
摘要
概述了为开展Z箍缩实验物理研究而建立的一些诊断技术和方法。这些诊断技术已成功应用于“阳”加速器(负载电流1.2 MA,上升时间 85 ns)喷气和丝阵Z箍缩物理研究中,其中软X光8通道Dante谱仪和软X光闪烁体功率计主要用于软X光能段的辐射功率、能量和低能辐射能谱测量;椭圆弯晶谱仪、凸圆柱晶体谱仪和透射光栅谱主要用于X光辐射线谱和连续谱的测量,以获取等离子体密度、电子和离子温度等信息;X光八分幅针孔相机、分能段6通道X光掠入射针孔积分相机和激光差分干涉测量系统主要用于研究Z箍缩内爆动力学过程及等离子体参数等,并给出了这些诊断系统获取的典型实验结果,包括X光辐射功率、辐射能谱、等离子体内爆图像和密度分布等。
Abstract
This paper describes the diagnostics developed in recent years for gas-puff and wire array Z-pinch experiments performed on Yang accelerator (peak current 1.2 MA,rise time 85 ns). An eight-channel Dante spectrometer and a scintillator X-ray power meter were used to measure the radiation power,energy and sub-keV power spectra of soft X-ray. Two crystal spectrometers (elliptically and convex cylindrically curved) were employed to obtain the plasma parameters from the line spectra in keV range. A transmission grating spectrometer was fabricated to measure the soft X-ray spectra in sub-keV range. An X-ray framing camera,a multi-channel grazing incidence pinhole X-ray camera and a laser differential interferometer were used to obtain the image and electron density of the imploding plasmas. Typical experimental results obtained by these diagnostics,such as X-ray power,X-ray spectra,and both time resolved and time integrated images of the Z-pinch imploding plasmas were briefly discussed.
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黄显宾, 邓建军, 杨礼兵, 谢卫平, 张思群, 周少彤, 蔡红春, 李晶, 陈光华, 任晓东, 张朝辉, 但加坤, 段书超, 周荣国, 李军, 欧阳凯. “阳”加速器上的Z箍缩诊断技术[J]. 强激光与粒子束, 2010, 22(4): 870. Huang Xianbin, Deng Jianjun, Yang Libing, Xie Weiping, Zhang Siqun, Zhou Shaotong, Cai Hongchun, Li Jing, Chen Guanghua, Ren Xiaodong, Zhang Zhaohui, Dan Jiakun, Duan Shuchao, Zhou Rongguo, Li Jun, Ouyang Kai. Diagnostics on Yang accelerator for Z-pinch experiment[J]. High Power Laser and Particle Beams, 2010, 22(4): 870.

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