Gas Fed Multichannel Hollow Cathode Arcs
Abstract
A new type of gas fed hollow cathode (multichannel cathode) has been studied. Such cathodes operate with a lower voltage drop and higher maximum current density than conventional one-channel cathodes and have a longer lifetime as well. Moreover, multichannel cathodes allow operation within a wide range of discharge currents and with extremely low gas flow rates. A theoretical analysis clarifies the principles of the operation of this type of cathode. The experimental results are explained and some general rules are presented for the cathode design.
- Publication:
-
Review of Scientific Instruments
- Pub Date:
- December 1969
- DOI:
- 10.1063/1.1683861
- Bibcode:
- 1969RScI...40.1555D