Автор |
András Kuthy |
Дата выпуска |
1982-07-01 |
dc.description |
The existence conditions of a cool plasma-mantle have been analyzed using a multifluid model. Oxygen densities in excess of 10<sup>17</sup> m<sup>-3</sup> require large heat fluxes which cause the mantle to contract. When the transport is classical, the magnetic field is stronger than 3 (1 + q<sup>2</sup>)<sup>1/2</sup> Tesla and the plasma density is less than 5 × 10<sup>20</sup> m<sup>-3</sup>, the mantle becomes narrower than the mean-free-path for charge-exchange of the hot neutral atoms. Bohm transport allows mantle formation with lower plasma densities or higher impurity densities. Light impurities have no effect on the mantle when the plasma density is higher than 5 × 10<sup>21</sup> m<sup>-3</sup>. Compared to cold gas-blanket systems, where the temperature is less than 3 eV, a cool plasma-mantle will protect the walls when the heat flux is four times the maximum allowable for gas-blankets. The restrictions due to impurity radiation, on the operating regime of the cool plasma-mantle apply to the cold gas-blanket regime as well. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
The Effects of Radiating Impurities and Bohm Transport on a Cool Plasma-Mantle |
Тип |
paper |
DOI |
10.1088/0031-8949/26/1/004 |
Electronic ISSN |
1402-4896 |
Print ISSN |
0031-8949 |
Журнал |
Physica Scripta |
Том |
26 |
Первая страница |
27 |
Последняя страница |
30 |
Аффилиация |
András Kuthy; Royal Institute of Technology, S-100 44 Stockholm 70, Sweden |
Выпуск |
1 |