PDP of Hydrogen Isotopes in a Low Temperature Plasma
- 1 September 1988
- journal article
- research article
- Published by Taylor & Francis in Fusion Technology
- Vol. 14 (2P2A) , 689-694
- https://doi.org/10.13182/fst88-a25214
Abstract
An ECR plasma discharge device has been designed and operated to study plasma driven permeation initiated by a scrape-off plasma. The observed plasma parameters are ne: 1010/cm3 and Te: <5eV in the pressure (Po) range of 0.5 − 5 Pa. Protium and deuterium permeation through a SS 304 foil of 10 µm has been measured as functions of the pressure, bias voltage and the temperature of the sample foil. Even such a low temperature plasma, a typical plasma driven permeation was observed with a very sharp“spike” at the start point of the permeation. An evident mass effect was also observed in the permeation of hydrogen isotopes. At a low pressure, around 2 Pa, the permeation showed to depend on bias voltages applied to the tested sample foil.Keywords
This publication has 5 references indexed in Scilit:
- Recent progress in the tokamak edge modelingJournal of Nuclear Materials, 1984
- Plasma driven permeation of tritium in fusion reactorsJournal of Nuclear Materials, 1984
- Permeation and reemission of deuterium, implanted in first wall materialsJournal of Nuclear Materials, 1981
- Hydrogen solubilisation into and permeation through wall materialsJournal of Nuclear Materials, 1979
- Deuterium transport through 304 and 304L stainless steel at low driving pressures and 15 KeV deuteron bombardmentJournal of Nuclear Materials, 1978