Title :
Special features of gas discharge characteristics of magnetron diode with metal-hydride cathode
Author :
Bitnaya, I.A. ; Borisko, V.N. ; Klochko, E.V.
Author_Institution :
Kharkov State Univ., Ukraine
Abstract :
Summary form only given, as follows. The characteristics of a gas discharge in planar magnetron was studied. The magnetron cathode was made of a metal-hydride based on getter Zr-V alloy. Hydrogen, desorbed from the cathode, was used as a worker gas. In the case, when gas pumping and the gas filling was turned off, the special stationary regime was found. In such a regime the control of the worker-gas pressure was carried out by a change of the discharge current magnitude only. The pressure dependence for a current range of 50-300 /spl mu/A was close to linear, and the worker-gas pressure was changed in the range 70-130 Pa. The presence of such a regime was conditioned by the existence of a dynamic balance between the competitive processes of hydrogen sorption and desorption by a metal-hydride cathode.
Keywords :
adsorbed layers; cathodes; diodes; discharges (electric); getters; magnetrons; plasma diagnostics; plasma properties; vanadium alloys; zirconium alloys; (Zr-V)H; 50 to 300 muA; 70 to 130 Pa; H; H desorption; H sorption; Zr-V alloy; desorbed H; discharge current; gas discharge characteristics; gas pumping; getter; magnetron cathode; magnetron diode; metal-hydride cathode; planar magnetron; pressure dependence; worker-gas pressure; Cathodes; Diodes; Discharges; Electron guns; Fault location; Gettering; Ion beams; Neutrons; Pulse circuits; Switches;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.605234
