Measurements of Electron Beam Intensity and Characteristic Line Radiation from Wire Array Z-pinches on the 1 MA COBRA Pulsed-Power Generator

Author(s):  
Kate S. Bell ◽  
Tatiana A. Shelkovenko ◽  
Sergey A. Pikuz ◽  
David A. Hammer ◽  
Jonathan D. Douglass ◽  
...  
Author(s):  
N.D. Ouart ◽  
A.S. Safronova ◽  
V.L. Kantsyrev ◽  
A.A. Esaulov ◽  
M.F. Yilmaz ◽  
...  

2005 ◽  
Vol 23 (4) ◽  
pp. 573-581 ◽  
Author(s):  
KIYOSHI YATSUI ◽  
KOUICHI SHIMIYA ◽  
KATSUMI MASUGATA ◽  
MASAO SHIGETA ◽  
KAZUHIKO SHIBATA

A pulsed power generator by inductive voltage adder, versatile inductive voltage adder (VIVA-I), which features a high average potential gradient (2.5 MV/m), was designed and is currently in operation,. It was designed to produce an output pulse of 4 MV/60 ns by adding 2 MV pulses in two-stages of induction cells, where amorphous cores are installed. As a pulse forming line, we used a Blumlein line with the switching reversed, where cores are automatically biased due to the presence of prepulse. Good reproducibility was obtained even in the absence of the reset pulse. Within ∼40% of full charge voltage, pulsed power characteristics of Marx generator, pulse forming line (PFL), transmission line (TL), and induction cells were tested for three types of loads; open-circuit, dummy load of liquid (CuSO4) resistor, and electron beam diode. In the open-circuit test, ∼2.0 MV of output voltage was obtained with good reproducibility. Dependences of output voltage on diode impedances were evaluated by using various dummy loads, and the results were found as expected. An electron-beam diode was operated successfully, and ∼18 kA of beam current was obtained at the diode voltage of ∼1 MV.


2015 ◽  
Vol 33 (2) ◽  
pp. 163-167 ◽  
Author(s):  
Ryota Hayashi ◽  
Tomoaki Ito ◽  
Fumihiro Tamura ◽  
Takahiro Kudo ◽  
Naoto Takakura ◽  
...  

AbstractTo control an input energy for a load, an impedance control with a gap distance of an electron beam diode was studied using an intense pulsed-power generator. The output current of the pulsed-power generator as a function of the gap distance of electron beam diode was measured. It indicated that the behaviors of the experimentally obtained peak current and the theoretically obtained space-charge limited current were found to decrease with an increase in the gap distance. The input energy for the load was estimated from the output current, which decreased with an increase in the gap distance. It also revealed the space-charge limited current suppresses the input energy for the load with a decade.


2009 ◽  
Author(s):  
B. Jones ◽  
M. E. Cuneo ◽  
D. J. Ampleford ◽  
C. A. Coverdale ◽  
E. M. Waisman ◽  
...  

2005 ◽  
Vol 12 (9) ◽  
pp. 092701 ◽  
Author(s):  
V. I. Sotnikov ◽  
J. N. Leboeuf ◽  
C. Deeney ◽  
C. A. Coverdale ◽  
P. Hellinger ◽  
...  

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