کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9638336 | 505055 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Diagnostics of the cesium amount in an RF negative ion source and the correlation with the extracted current density
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Diagnostics of the cesium amount in an RF negative ion source and the correlation with the extracted current density Diagnostics of the cesium amount in an RF negative ion source and the correlation with the extracted current density](/preview/png/9638336.png)
چکیده انگلیسی
The formation of negative ions in plasma sources by the surface process requires covering the extraction grid with a material of low work function. This can be achieved by cesium evaporation but for operational reasons the consumption of cesium should be minimised. In order to quantify the amount of cesium in the RF discharge optical emission spectroscopy is used as diagnostic tool. Suitable diagnostic lines and their analysis to obtain particle densities and particle fluxes are described. Influences of argon admixtures to hydrogen and deuterium discharges on cesium emission are shown. A correlation of the cesium emission with the extracted negative ion current density is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 74, Issues 1â4, November 2005, Pages 299-303
Journal: Fusion Engineering and Design - Volume 74, Issues 1â4, November 2005, Pages 299-303
نویسندگان
U. Fantz, H.D. Falter, P. Franzen, M. Bandyopadhyay, B. Heinemann, W. Kraus, P. McNeely, R. Riedl, E. Speth, A. Tanga, R. Wilhelm,