Автор |
J Dutton |
Автор |
N B Evans |
Автор |
G B Morgan |
Дата выпуска |
1967-09-01 |
dc.description |
The spatial increase of pre-breakdown ionization currents has been measured in oxygen for gas pressures in the range 93-650 torr and for 39·6 <or= E/p<sub>0</sub> <or= 50·3 v cm<sup>-1</sup> torr<sup>-1</sup> (where E is the electric field and p<sub>0</sub> the pressure corrected to 0°C). The values of the Townsend generalized secondary ionization coefficient ω/α determined from the measurements decreased rapidly as E/p<sub>0</sub> increased from 39·6 to about 46 v cm<sup>-1</sup> torr<sup>-1</sup> and then became relatively constant as E/p<sub>0</sub> increased further. Values of the apparent primary ionization coefficient α/p<sub>0</sub>, which were also determined as part of this investigation, increased with decreasing pressure at a constant value of E/p<sub>0</sub> for E/p<sub>0</sub> < 43 v cm<sup>-1</sup> torr<sup>-1</sup>; the significance of this variation of α/p<sub>0</sub> with p<sub>0</sub> in the determinations of ω/α from measurements of sparking potentials is discussed. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Secondary ionization coefficients in oxygen at pressures up to atmospheric |
Тип |
paper |
DOI |
10.1088/0508-3443/18/9/310 |
Print ISSN |
0508-3443 |
Журнал |
British Journal of Applied Physics |
Том |
18 |
Первая страница |
1287 |
Последняя страница |
1293 |
Аффилиация |
J Dutton; Department of Physics, University College of Swansea |
Аффилиация |
N B Evans; Department of Physics, University College of Swansea |
Аффилиация |
G B Morgan; Department of Physics, University College of Swansea |
Выпуск |
9 |