Emission current from a single micropoint of explosive emission cathode

2016 ◽  
Vol 23 (1) ◽  
pp. 013111 ◽  
Author(s):  
Ping Wu ◽  
Jun Sun
Keyword(s):  
Emission Current ◽  
Explosive Emission ◽  
Explosive Emission Cathode ◽  
Emission Cathode

Activation of the explosive-emission cathode under various conditions of preinitiation

Vacuum ◽  
2017 ◽  
Vol 143 ◽  
pp. 473-478 ◽  
Author(s):  
S.A. Shunailov ◽  
M.I. Yalandin ◽  
K.A. Sharypov ◽  
M.D. Kolomiets ◽  
M.R. Ulmasculov ◽  
...  
Keyword(s):  
Explosive Emission ◽  
Explosive Emission Cathode ◽  
Emission Cathode

Research on an improved explosive emission cathode

2009 ◽  
Vol 42 (12) ◽  
pp. 125204 ◽  
Author(s):  
Guozhi Liu ◽  
Jun Sun ◽  
Hao Shao ◽  
Changhua Chen ◽  
Xiaowei Zhang
Keyword(s):  
Explosive Emission ◽  
Explosive Emission Cathode ◽  
Emission Cathode

scholarly journals Influence of Cathode Diameter on the Operation of a Planar Diode with an Explosive Emission Cathode

2011 ◽  
Vol 2011 ◽  
pp. 1-14 ◽  
Author(s):  
Yulia I. Isakova ◽  
Galina E. Kholodnaya ◽  
Alexander I. Pushkarev
Keyword(s):  
Experimental Investigations ◽  
Electron Current ◽  
Explosive Emission ◽  
Total Electron ◽  
Planar Diode ◽  
Graphite Cathode ◽  
Nanosecond Pulses ◽  
Ion Accelerator ◽  
Explosive Emission Cathode ◽  
Emission Cathode

This paper presents the results of experimental investigations into the current-voltage characteristics of a planar diode with an explosive emission cathode made from graphite. Studies were performed using a TEU-500 pulsed electron accelerator (350–500 keV, 100 ns, 250 J per pulse). Duration of diode operation, in a mode when electron current is limited by the emissive ability of the graphite cathode, is 15–20 ns. The contribution of the cathode periphery to total electron current appears only as an increase in the emissive surface area due to an expansion of explosive plasma. Investigations of an ion diode with a graphite cathode (plane and focusing geometry) were also carried out. Experiments were performed using a TEMP-4M ion accelerator, which forms two nanosecond pulses: the first negative pulse (150–200 kV, 300–600 ns) followed by the second positive (250–300 kV, 150 ns). Total diode current in the first pulse is well described by the Child-Langmuir law for electron current at a constant rate of plasma expansion, equal to 1.3 cm/μs. It is shown that for an area of flat cathode over 25 cm2, the influence of edge contribution does not exceed measurement error of total diode electron current (10%).

A resonance switch employing an explosive-emission cathode for high-power rf pulse compressors

2010 ◽  
Vol 97 (3) ◽  
pp. 031501 ◽  
Author(s):  
O. A. Ivanov ◽  
V. A. Isaev ◽  
M. A. Lobaev ◽  
A. L. Vikharev ◽  
J. L. Hirshfield
Keyword(s):  
High Power ◽  
Explosive Emission ◽  
Explosive Emission Cathode ◽  
Rf Pulse ◽  
Emission Cathode
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