Zobrazeno 1 - 10
of 15
pro vyhledávání: '"J. P. Brainard"'
Autor:
S. B. Wilde, Ka-Ngo Leung, J. P. Brainard, C. H. Draper, L. T. Perkins, R. H. Ney, M. D. Williams, E. J. T. Burns
Publikováno v:
Review of Scientific Instruments. 67:1657-1661
We have developed a new magnetic monocusp ion source for single aperture applications such as neutron generators. Coupling solenoidal magnetic fields on both sides of a monocusp magnetic field has generated over 70% atomic deuterium ions at pressures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67d4108f89e4f8b38ba42a4253394cc1
https://doi.org/10.1063/1.1146911
https://doi.org/10.1063/1.1146911
Autor:
Ka-Ngo Leung, J. P. Brainard, R. H. Ney, S. B. Wilde, C. H. Draper, E. J. T. Burns, M. D. Williams, L. T. Perkins
Publikováno v:
Review of Scientific Instruments. 67:1317-1317
We have developed a new magnetic monocusp ion source for single aperture applications such as neutron generators. Coupling solenoidal magnetic fields on both sides of a monocusp magnetic field has generated over 70% atomic deuterium ions at pressures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a16e92d0606f8c35fda27089ef479f52
https://doi.org/10.1063/1.1147242
https://doi.org/10.1063/1.1147242
Autor:
R. A. Anderson, J. P. Brainard
Publikováno v:
Journal of Applied Physics. 51:1414-1421
A simple model is proposed to explain how a breakdown avalanche of secondary emission electrons can lead to surface flashover when an insulator in vacuum breaks down a few nanoseconds after high voltage is applied. The case of a plane insulator–vac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4f32fe8c2c57471afadee671f18dbd3
https://doi.org/10.1063/1.327839
https://doi.org/10.1063/1.327839
Autor:
Dal Jensen, J. P. Brainard
Publikováno v:
Journal of Applied Physics. 45:3260-3265
This paper describes a model for insulator surface charging in high‐voltage ceramic vacuum diodes. The model involves electron emission from the insulator‐cathode‐vacuum junction followed by electron avalanches on the insulator surface which le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bf931be850461b3351ba90560a2c7b2
https://doi.org/10.1063/1.1663770
https://doi.org/10.1063/1.1663770
Autor:
J. P. Brainard, J. B. O’Hagan
Publikováno v:
Review of Scientific Instruments. 54:1497-1505
The single‐ring cusp ion source discussed in this paper was developed to provide a dc ion beam in a nonpumped D–T neutron generator. The source operates at 0.25 Pa and produces a uniform‐density beam through an aperture of 1.3‐cm diameter. At
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f96ea888d6a558625691f23a612e3a5
https://doi.org/10.1063/1.1137275
https://doi.org/10.1063/1.1137275
Autor:
A. A. Riedel, J. P. Brainard
Publikováno v:
Journal of Applied Physics. 47:2911-2914
Ion bombardment of the cathode in a vacuum diode can induce high‐voltage breakdown. The breakdown damage at the cathode consists of a central initiation site caused during the high‐voltage collapse and a surrounding dendritic etching caused after
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80befb817c816b30ba81db52da0b88b4
https://doi.org/10.1063/1.323071
https://doi.org/10.1063/1.323071
Autor:
L. A. Andrews, J. P. Brainard
Sympathetic breakdown is observed between adjacent gaps in ambient air up to 0.4 m apart, and is found to be due to ultraviolet light. The ultraviolet light generated by the first gap breakdown initiates a breakdown in the second gap. The initiation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95feba66f4fdc598ec5907f3139814a7
https://doi.org/10.2172/7211622
https://doi.org/10.2172/7211622
Autor:
D. H. Jensen, J. P. Brainard
Publikováno v:
Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1974.
High voltage applied to insulators in vacuum can result in a positive surface charge remaining after the voltage is removed. This is believed to be caused by an electron avalanche, i.e., a cascade of electrons multiplying on the surface by secondary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f685914718a07694d39eddadb97afead
https://doi.org/10.1109/ceidp.1974.7735937
https://doi.org/10.1109/ceidp.1974.7735937
Autor:
J. P. Brainard
Publikováno v:
Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1975.
High-voltage holdoff of solid insulators bewteen electrodes in vacuum depends strongly on insulator shape. The angle between the applied field and the insulator interface is believed to be the fundamental dependence. A detailed calculation of the ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::152323005c9a828e591ca3c50de69b3f
https://doi.org/10.1109/ceidp.1975.7736688
https://doi.org/10.1109/ceidp.1975.7736688