Space charge in a vacuum diode: From macroscopic to microscopic gaps

2021 ◽  
Vol 130 (2) ◽  
pp. 024502
Author(s):  
Mohab O. Hassan ◽  
Kenichi Takahata ◽  
Alireza Nojeh
Keyword(s):  
Space Charge ◽  
Vacuum Diode

Magnetically insulated coaxial vacuum diode with partial space-charge-limited explosive emission from edge-type cathode

2016 ◽  
Vol 119 (2) ◽  
pp. 023304 ◽  
Author(s):  
S. Ya. Belomyttsev ◽  
V. V. Rostov ◽  
I. V. Romanchenko ◽  
S. A. Shunailov ◽  
M. D. Kolomiets ◽  
...  
Keyword(s):  
Space Charge ◽  
Vacuum Diode ◽  
Explosive Emission ◽  
Edge Type ◽  
Space Charge Limited

Nonuniform Space Charge Limited Current for 2-D Bipolar Flow in Vacuum Diode

2021 ◽  
Vol 68 (12) ◽  
pp. 6538-6545
Author(s):  
Ying Bin Zhu ◽  
Mei Yan Liao ◽  
Pan Zhao ◽  
Ruo He Yao
Keyword(s):  
Space Charge ◽  
Vacuum Diode ◽  
Space Charge Limited Current ◽  
Limited Current ◽  
Space Charge Limited

Electron holography of interfaces in electroceramics

1993 ◽  
Vol 51 ◽  
pp. 1088-1089
Author(s):  
Vinayak P. Dravid ◽  
V. Ravikumar ◽  
Richard Plass
Keyword(s):  
Space Charge ◽  
Direct Evidence ◽  
Materials Science ◽  
Theoretical Work ◽  
Electron Holography ◽  
Resolution Limit ◽  
Interference Phenomenon ◽  
X Ray ◽  
Electron Sources ◽  
Science Community

With the advent of coherent electron sources with cold field emission guns (cFEGs), it has become possible to utilize the coherent interference phenomenon and perform “practical” electron holography. Historically, holography was envisioned to extent the resolution limit by compensating coherent aberrations. Indeed such work has been done with reasonable success in a few laboratories around the world. However, it is the ability of electron holography to map electrical and magnetic fields which has caught considerable attention of materials science community.There has been considerable theoretical work on formation of space charge on surfaces and internal interfaces. In particular, formation and nature of space charge have important implications for the performance of numerous electroceramics which derive their useful properties from electrically active grain boundaries. Bonnell and coworkers, in their elegant STM experiments provided the direct evidence for GB space charge and its sign, while Chiang et al. used the indirect but powerful technique of x-ray microchemical profiling across GBs to infer the nature of space charge.

ELECTROLYTIC COLORATION IN ALKALI HALIDES. ROLE OF THE SPACE CHARGE ON THE COLOR PROPAGATION

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-86-C7-86
Author(s):  
M. T. MONTOJO ◽  
F. JAQUE ◽  
C. SÁNCHEZ
Keyword(s):  
Space Charge ◽  
Alkali Halides

EFFECTS OF SPACE CHARGE ON THE "EFFECTIVE CROSS SECTION"

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-755-C7-756
Author(s):  
N. S. Kopeika ◽  
T. Karcher ◽  
C.S. Ih.
Keyword(s):  
Space Charge ◽  
Cross Section ◽  
Effective Cross Section
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