Generation and focusing of an intense long pulse proton beam
- Forschungszentrum Karlsruhe GmbH (Germany)
Results of an experimental study aiming at the creation of a long pulse proton beam facility with a pulse duration longer than 10 {micro}s and a power density of 10 MW/cm{sup 2} on the target are presented. The experiments were carried out at the intermediate stage facility PROFA consisting of a vacuum diode as proton beam source and a two stage focusing channel combining ballistic focusing and magnetic compression. In the diode a new type of a large area proton source--a multi spark anode--was employed. This anode produces a surface plasma layer by igniting a discharge along 750 polyethylene units, which are homogeneously placed over the anode surface. As a cathode unit a multipoint explosive emission cathode or a metal grid was used. The diode operation under different conditions and the efficiency of the ion beam transportation and focusing with different methods for space charge neutralization are discussed.
- OSTI ID:
- 178225
- Report Number(s):
- CONF-950612-; ISBN 0-7803-2669-5; TRN: 96:006714
- Resource Relation:
- Conference: 22. international conference on plasma science, Madison, WI (United States), 5-8 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of IEEE conference record -- abstracts: 1995 IEEE international conference on plasma science; PB: 312 p.
- Country of Publication:
- United States
- Language:
- English
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