Zobrazeno 1 - 10
of 10
pro vyhledávání: '"V F Puchkarev"'
Autor:
M B Bochkarev, V F Puchkarev
Publikováno v:
Journal of Physics D: Applied Physics. 27:1214-1219
By using the procedure of current detection from individual cathodes 5-7 mu m distant from each other and by scanning electron microscopy, the initiation of new vacuum arc cathode spots has been studied. Ion current bursts of duration 10-50 ns with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f043b8ebf9645ef2e0329508704e9576
https://doi.org/10.1088/0022-3727/27/6/019
https://doi.org/10.1088/0022-3727/27/6/019
Autor:
V F Puchkarev, S M Chesnokov
Publikováno v:
Journal of Physics D: Applied Physics. 25:1760-1766
The influence of ambient gas pressure and emission current on the potential distribution in a diffuse arc has been studied. The conditions determining the formation of the potential 'hump' near the cathode have been determined. The erosion rate Upsil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11fb40e0d4c677cf894cca0f993b2268
https://doi.org/10.1088/0022-3727/25/12/011
https://doi.org/10.1088/0022-3727/25/12/011
Autor:
V F Puchkarev, A Z Nemirovskii
Publikováno v:
Journal of Physics D: Applied Physics. 25:798-802
Using a model of the continuous metal-to-plasma transition, a simple formula relating the arc voltage to the cathode thermophysical properties, such as the Lorentz constant, heat capacity and energy deposition into arc, has been derived. A formula fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47f25412553ebb93f0fb8446c6e2351f
https://doi.org/10.1088/0022-3727/25/5/008
https://doi.org/10.1088/0022-3727/25/5/008
Autor:
V F Puchkarev
Publikováno v:
Journal of Physics D: Applied Physics. 24:685-692
High frequency fluctuations (up to 50 MHz) in the ion current arc voltage and plasma floating potential have been studied, together with the influence of the surface history on these fluctuations for arc currents ranging from 2 to 50 A. In the proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72931650ad9c79b7400e2eb057871981
https://doi.org/10.1088/0022-3727/24/5/009
https://doi.org/10.1088/0022-3727/24/5/009
Publikováno v:
IEEE Transactions on Electrical Insulation. 25:351-354
Decreasing the temperature of a cathode changes its thermophysical properties. The transition to the superconducting state causes the cathode resistance to vanish and, hence, makes impossible any Joule heating of the cathode micropoints (CMs) by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c46f0914803af5114edebaf013e4f922
https://doi.org/10.1109/14.52382
https://doi.org/10.1109/14.52382
Autor:
V F Puchkarev, A M Murzakayev
Publikováno v:
Journal of Physics D: Applied Physics. 23:26-35
The autograph method was used to investigate the arc spot motion over a virgin tungsten cathode under a magnetic field of H=0.1-0.7 T in the current range 2-50 A. The cathode spot (CS) has been found to start dividing at a current of a few amperes. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f1b55f8a5a74493cbe7082992f12fe3
https://doi.org/10.1088/0022-3727/23/1/005
https://doi.org/10.1088/0022-3727/23/1/005
Autor:
V. F. Puchkarev, D. I. Proskurovskii
Publikováno v:
Soviet Physics Journal. 18:1687-1691
The near-cathode potential drop uK is studied in a high-voltage high-current (U=20–40 kV, i=100–500 A) vacuum diode with a cathode operating under explosive emission of electrons. The magnitude of UK is estimated from oscillograms of the probe cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dc455540e9fc7dd1d658f03e9ff58af
https://doi.org/10.1007/bf00892787
https://doi.org/10.1007/bf00892787
Autor:
V. F. Puchkarev, D. I. Proskourovsky
Publikováno v:
Le Journal de Physique Colloques. 40:C7-411
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::917655663951044ea249ef6a1112d6a7
https://doi.org/10.1051/jphyscol:19797201
https://doi.org/10.1051/jphyscol:19797201
Publikováno v:
Soviet Physics Journal. 16:293-297
The instants corresponding to the appearance of luminescence in three regions of the interelectrode gap (at the anode and cathode and in the center of the gap) were determined by means of a photomultiplier and compared with the onset of the rise in c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b54903df644a73ac1667875cc3ee6deb
https://doi.org/10.1007/bf00895413
https://doi.org/10.1007/bf00895413
Publikováno v:
Soviet Physics Journal. 17:1025-1026
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaa3a26c8096f43b4a7593ffba78b609
https://doi.org/10.1007/bf00891084
https://doi.org/10.1007/bf00891084