| IAEA-CN-115-68 · Use Of Plasma Window For Enhanced Ion Beam Transmission From Vacuum To Air
K. Govender, C.B. Franklyn
Radiation Utilisation Department, Nuclear Technology Group, Necsa, South Africa
Abstract: Vacuum-high pressure (>1 Bar) interfaces have conventionally been implemented on accelerator systems by means of a thin foil barrier through which the ion beam passes or by spinning disc differential gas target technology. Both these techniques are relatively inefficient (energy loss and limited beam current in the foil system and the requirement for a pulsed beam and low duty cycle in the spinning disc system). The idea of using a plasma arc discharge as a barrier (plasma window), though not new, has been further developed through introduction of a venturi type gas flow system such that its potential for application in research and industry are vast.
|
Full Paper (pdf)