Results 231 to 240 of about 6,836 (265)

Hollow Cathode Discharge Devices

1970
Many types of devices have been used as fine-line sources for spectroscopic investigation. Arcs, Geissler tubes, radio-frequency electrodeless discharge tubes, high pressure discharge devices, atomic beams and hollow cathode devices have all been used to study hyperfine line structure. However, no other source has been used as extensively as the hollow
J. C. Burger, W. Gillies, G. K. Yamasaki
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Hollow cathodes for arcjet thrusters

19th International Electric Propulsion Conference, 1987
In an attempt to prevent exterior spot emission, hollow cathode bodies and orifice plates were constructed from boron nitride which is an electrical insulator, but the orifice plates melted and/or eroded at high interelectrode pressures. The most suitable hollow cathodes tested included a refractory metal orifice plate in a boron nitride body, with the
CRAIG LUEBBEN, PAUL WILBUR
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Theory of the hollow cathode arc

Journal of Applied Physics, 1978
A theory of the hollow cathode arc is given which explains the physical mechanisms of operation of these discharges. The following basic phenomena are studied: the gas flow inside the cathode; the formation of the internal plasma column by ionization of the neutral gas by the primary electrons emitted by the cathode, which are accelerated in the ...
C. M. Ferreira, J. L. Delcroix
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Resonant Cavity Hollow Cathode

41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2005
The design and operation of a microwave plasma electron source in the form of a resonant cavity are described. Current-voltage characteristics recorded with a flat plate anode are presented and compared to those obtained with a thermionic hollow cathode.
openaire   +1 more source

Hollow cathode chemical modelling [PDF]

, 2008
In this paper the state of hollow cathode life time modelling at the University of Southampton will be reported. Two models have been developed: one for BaO depletion from the hollow cathode insert and another for low work function compounds deposition and desorption.
Coletti, M., Gabriel, S.B.
openaire  

Vacuum Plasmatrons with Hollow Cathode: Gas-Dynamic Plasma Processes in the Hollow Cathode

Journal of Engineering Thermophysics, 2023
P. V. Domarov, V. A. Serikov, A. E. Morev, O. S. Cherednichenko   +3 more
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The hollow cathode plume

Spectrochimica Acta Part B: Atomic Spectroscopy, 1985
R.Kenneth Marcus, W.W. Harrison
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SERT II - Durability of the hollow cathode and future applications of hollow cathodes

7th Electric Propulsion Conference, 1969
openaire   +1 more source

Micro hollow cathode excited dielectric barrier discharge (DBD) plasma bubble and the application in organic wastewater treatment

Separation and Purification Technology, 2020
Xiaoping Wang, Lecheng Lei
exaly  

Hollow structured cathode materials for rechargeable batteries

Science Bulletin, 2020
Hengming Huang, Xiaobo Zhu, Jiayong Tang   +2 more
exaly