X-Ray Radiation Characteristics of Nested-Wire Array Implosion in Sino-Russian Joint Z-pinch Experiments on Angara-5-1
Year: 2005
Type: article
Abstract: We report and discuss the results of x-ray radiation measurements in the Sino-Russian joint Z-Pinch experiments on Angara-5-1 facility with a load current of 2.5–3.6 MA. The measurements were conducted by using an x-ray power meter (XRPM) and a time-resolved one-dimensional x-ray imaging system developed in China Academy of Engineering Physics. The experimental results indicate that an x-ray power-platform prior to a main peak and a less intensive sub-peak after the main peak in the waveform exist for the nested-wire array implosions, and the radiation process is relatively faster than that in the case of the single array. Laser shadowgraph of the imploding plasma suggests that the prior power-platform is a result of the collision of the inner-outer plasma layers. The faster radiation process of nested array implosion can be explained by analysing the corresponding result of the time-resolved one-dimensional imaging system, which demonstrates a better axial imploding uniformity and synchronization. In comparison with x-ray diode, the XRPM yields a higher height of x-ray power-platform due to its flat energy response. The sub-peak after the main peak is proposed to be a result of the later-time additional implosion of plasma.
Source: Chinese Physics Letters
Authors: Xu Rong-Kun, Li Zheng-Hong, Ning Jia-Min, Guo Cun, Xu Ze-Ping, Yang Jian-Lun, Li Lin-Bo, Xia Guang-Xin, Hua Xin-Sheng, Ding Ning, Liu Qiang, Gu Yuan-Chao, E. V Grabovsky, G. M Oleynic, S. L Nedoseev, V. V Alexandrov, K N.Mitrofanov, M. V Zurin, G. S Volkov, I. A Porofeev, I. N Frolov, V. P Smirnov
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2004143139