Development Of Pulsed Pinch Plasmas For The Application As Fair Plasma Stripper*

Abstract

The Facility for Antiproton and Ion Research (FAIR) is a new international accelerator laboratory at the GSI in Darmstadt, Germany. The main topic at this facility is aimed to heavy ion research. The FAIR project in comparison to the existing facility GSI extends the research area by raising the energy of heavy ion beams. The demand for acceleration of the beam to the highest possible energy is a highly ionized charge state of the Ion beam. For beam stripping to get higher charge state, the traditional tools are foil stripper and gas stripper. Hence pulsed Plasma is suggested to be a stripper medium. In Frankfurt are different kinds of Pinch Plasmas under investigation for this application. One is a Spherical Theta Pinch and the other a hollow cathode Screw Pinch 1. The screw pinch plasma consists of a superposition of a linear Zpinch and a Theta pinch. The constricting effect on the plasma or conductor is produced by the magnetic field pressure resulting from the magnetic field of the linear current and magnetic field of the coil. The device operates at a frequency of approximate 14 kHz and with a capacity of $34 \mu \mathrm {F}$. This contribution gives the first results of the transfer efficiency and optical investigations of pulsed the screw pinch compared to a theta pinch 2. In addition first measurements of beam time experiments at GSI will be presented.