DocumentCode
2147138
Title
Investigation of H- ions formation in the reflective discharge with metal-hydride cathode
Author
Borisko, V.N. ; Sereda, I.N. ; Ryabchikov, D.L. ; Klochko, Ye.V.
Author_Institution
V.N.Karazin Kharkov Nat. Univ., Ukraine
fYear
2002
fDate
2002
Firstpage
614
Lastpage
617
Abstract
The paper presents the results of experimental investigations of elementary processes in cathode layer of H- ions plasma source based on Penning discharge with metal hydride cathode. The getter alloy Zr55V40Fe5+3%B2O3 hydride was used as the cathode material. It is shown that the use of such hydride forming compositions leads to enhancing of H- ions generation efficiency in the pre-cathode zone of reflective discharge. The critical role of ion stimulated desorption of hydrogen from metal hydride surface at intensification of negative hydrogen ions production in the reflective discharge with metal hydride cathode was found out.
Keywords
Penning discharges; boron compounds; cathodes; getters; hydrogen; iron alloys; negative ions; plasma sources; vanadium alloys; zirconium alloys; 3%B2O3 hydride; H-; H- ions formation; H- ions generation efficiency; Penning discharge; Zr55V40Fe5+3%B2O3; Zr55V40Fe5-B2O3; cathode material; getter alloy Zr55V40Fe5; hydride forming compositions; ion stimulated desorption; metal hydride cathode; plasma sources; pre-cathode zone; reflective discharge; Anodes; Cathodes; Electrodes; Electron beams; Fault location; Gettering; Hydrogen; Inorganic materials; Ion sources; Thermal decomposition;
fLanguage
English
Publisher
ieee
Conference_Titel
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN
0-7803-7394-4
Type
conf
DOI
10.1109/ISDEIV.2002.1027449
Filename
1027449
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