Výsledky vyhledávání - "Zheng Yong-zhen"

Mitigation and prediction of disruption on the HL-2A Tokamak

Autor: Qiu Ying, Cui Zheng-Ying, Yang Qingwei, Sun Ping, Zhang Peng, Huang Yuan, Zheng Yong-Zhen

Publikováno v: Chinese Physics B. 18:5406-5413

Injection of high-Z impurities into plasma has been proved to be able to reduce the localized thermal load and mechanical forces on the in-vessel components and the vacuum vessel, caused by disruptions in Tokamaks. An advanced prediction and mitigati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7511407011b4357e7b4d2867109eea57
https://doi.org/10.1088/1674-1056/18/12/047

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Preliminary analysis of impurity transport in HL-2A ohmic discharges

Autor: Deng Wei, Pan Yudong, Zhang Peng, Cui Zheng-Ying, Shi Zhongbing, Huang Yuan, Zheng Yong-Zhen, Sun Ping, Zhou Yan, Yang Qingwei, Chen Wei

Publikováno v: Chinese Physics. 16:3451-3457

This paper describes the behaviour of impurity transport in HL-2A ohmic discharges. In 2005, small quantities of metallic impurities (Al, Ni and Ti) were successfully injected into HL-2A plasmas by laser blow-off technique, and their progression was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3127d9377e04ba9006ea7c99eb33f326
https://doi.org/10.1088/1009-1963/16/11/050

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Measurement and analyses of the mean effective ion charge in the centre of tokamak discharges

Autor: Zhuo Yan, Ding Xuan-Tong, Zheng Yong-Zhen

Publikováno v: Chinese Physics. 16:1084-1088

There are two different definitions for specifying the mean effective ion charge Zeff in plasmas: a) from the Spizer electrical resistivity of the plasma and b) from bremsstrahlung radiation losses of the plasma. In this paper Zeff in the centre of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77610f25db1d08e3b44a27903e1e8586
https://doi.org/10.1088/1009-1963/16/4/037

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Investigation of Impurity Ion Transport with Laser Blow-off in HL-2A Tokamak

Autor: Zhang Peng, Sun Ping, Lu Jie, Huang Yuan, Zheng Yong-Zhen, Yang Qingwei, Ding Xuan-Tong, Dong Yun-Bo, Cui Zheng-Ying, Shi Pei-Lan, Deng Wei, Fu Bingzhong, Pan Yudong

Publikováno v: Chinese Physics Letters. 23:2143-2146

Non-recycling impurities are injected into ohmic HL-2A plasma for the first time. The impurities of titanium and aluminium are injected in the discharges with varying plasma density and current. The convection and diffusion process of the injected im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e5ce48fc85dd1f9536bbc4125c004575
https://doi.org/10.1088/0256-307x/23/8/050

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Scaling Properties of Runaway Electrons in HL-1M Tokamak

Autor: Zheng Yong-zhen

Publikováno v: Plasma Science and Technology. 8:381-384

A simple one-dimensional numerical model including generation, acceleration and loss effects for runaway electrons are used to deduce the runaway energy ?r. The simulation results are presented in a form of a scaling law of ?r on plasma parameters. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e66f5c339f214f9d5cd80e307faf56c5
https://doi.org/10.1088/1009-0630/8/4/02

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A Study of Temperature Effect on Ta+N Ion-Implanted Hardalloy

Autor: Zheng Yong-zhen, Geng Man, Tong Honghui, Zhao Feng, Zhao Qing

Publikováno v: Plasma Science and Technology. 3:897-902

Hard alloy were implanted with a dual-ion of nitrogen and tantalum at temperature of 100 ?C and 400 ?C at a dose of 8?1017 ions cm-2. Auger electron spectroscopy (AES) was used to determine the nitrogen and tantalum concentration profiles. Microhardn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::207f4cfb48c4282a806e9c74318bc357
https://doi.org/10.1088/1009-0630/3/4/010

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Influence of Temperature on Nitrogen Ion Implantation of Ti6Al4V Alloy

Autor: Geng Man, Mo Zhi-tao, Zheng Yong-zhen, Zhao Qing, Tong Honghui, Tang De-Li

Publikováno v: Plasma Science and Technology. 3:721-726

In order to achieve increased layer thickness, and wearing resistance, enhanced ion implantation with nitrogen has been carried out at temperatures of 100, 200, 400, and 600°C with a dose of 4×1018 ions cm-2. Using the Plasma Source Ion Implantatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3d8665c29f82fcc34a665f7dade9f9f
https://doi.org/10.1088/1009-0630/3/2/008

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