| Автор | K Okano |
| Дата выпуска | 1987-09-01 |
| dc.description | A two-dimensional fast ion Fokker-Planck equation is analytically solved with a new cross-section formula for charge exchange loss. The new formula includes the exact cross-section dependence on ion energy and is valid from 2 keV up to several hundred keV, where charge exchange is always negligible. A loss of beam driven currents due to the charge exchange has been analysed, using this analytic solution of Fokker-Planck equation. It has been revealed that the previous rough treatment with the charge exchange cross-section, proportional to 1/ nu , sometimes results in a considerable error. By a systematic parametric survey, the reduction rates for beam driven currents, due to charge exchange loss, are rearranged and tabled. Also, a reduction in global current drive efficiency by charge exchange in a next generation Tokamak is briefly discussed. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Exact treatment of charge exchange loss in beam driven currents |
| Тип | paper |
| DOI | 10.1088/0741-3335/29/9/006 |
| Electronic ISSN | 1361-6587 |
| Print ISSN | 0741-3335 |
| Журнал | Plasma Physics and Controlled Fusion |
| Том | 29 |
| Первая страница | 1115 |
| Последняя страница | 1126 |
| Аффилиация | K Okano; Toshiba Res. & Dev. Center, Kawasaki, Japan |
| Выпуск | 9 |
