{"title":"A 0.1 TW gas-breakdown plasma-anode ion diode","authors":"A. Dunning, J. Greenly, G. Rondeau","doi":"10.1109/PLASMA.1989.166043","DOIUrl":null,"url":null,"abstract":"A magnetically insulated extraction-geometry ion diode using inductive breakdown of a gas layer to produce a magnetically confined anode plasma has been successfully operated on the LONGSHOT pulser. The pulse parameters were 120 kV, 30 kA, and <or approximately=1 mu s duration. LONGSHOT produced double the total ion output compared to a standard dielectric anode, allowed constant impedance for >500 ns, and improved on all other characteristics except beam divergence. The plasma anode has now been integrated into a similar diode to operate on the Neptune pulser, to produce pulses of 700 kV, 3 Omega , 100 ns, and >0.1 TW. The goal is to investigate the scaling of this diode to the higher voltage and to current density above 0.5 kA/cm/sup 2/. The major scaling issue is whether good control of the anode surface shape and position, and the resulting ion canonical momentum and divergence, can be maintained. The beam from this diode will be used to form diamagnetic ion rings, and will allow good diagnosis of beam quality.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1989 International Conference on Plasma Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PLASMA.1989.166043","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A magnetically insulated extraction-geometry ion diode using inductive breakdown of a gas layer to produce a magnetically confined anode plasma has been successfully operated on the LONGSHOT pulser. The pulse parameters were 120 kV, 30 kA, and 500 ns, and improved on all other characteristics except beam divergence. The plasma anode has now been integrated into a similar diode to operate on the Neptune pulser, to produce pulses of 700 kV, 3 Omega , 100 ns, and >0.1 TW. The goal is to investigate the scaling of this diode to the higher voltage and to current density above 0.5 kA/cm/sup 2/. The major scaling issue is whether good control of the anode surface shape and position, and the resulting ion canonical momentum and divergence, can be maintained. The beam from this diode will be used to form diamagnetic ion rings, and will allow good diagnosis of beam quality.<>
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