Accession Number : ADA225329


Title :   Physical Processes in Hollow Cathode Discharge


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Han, Hwang-Jin


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a225329.pdf


Report Date : Dec 1989


Pagination or Media Count : 61


Abstract : The hollow cathode is an effective source of dense, low energy plasma. Hollow cathodes find use in ion beam sources for laboratory and space applications. They can also be used independently for satellite charge control, and ion beam neutralization. A heaterless hollow cathode design was tested with argon gas used as a propellant. This thesis work investigated the device properties, that is, the emission currents as a function of discharge current, propellant flow rate and other physical parameters. Starting behavior was a main point of the investigation. The results of these experiments were compared with studies of the conventional hollow cathode. Keywords: Cathodes, Plasmas(Physics) , Ion beams, Theses.


Descriptors :   *PLASMA DEVICES , *CATHODES , PLASMAS(PHYSICS) , NEUTRALIZATION , THESES , ION BEAMS , GASES , PROPELLANTS , FLOW RATE , LOW ENERGY , ARTIFICIAL SATELLITES , ELECTRIC DISCHARGES , SPACECRAFT COMPONENTS , ELECTRIC CURRENT , STARTING , ARGON , ION SOURCES , EMISSION , SPACE TECHNOLOGY


Subject Categories : Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE