Characterization of an Intense Electron Beam Driven by Cesar a 600 kV 300 kA Pulsed Power Generator

2007 ◽  
Author(s):  
L. Voisin ◽  
D. Hebert ◽  
T. Desanlis ◽  
A. Galtie
Keyword(s):  
Electron Beam ◽  
Pulsed Power ◽  
Power Generator ◽  
Intense Electron Beam ◽  
Pulsed Power Generator ◽  
Intense Electron

scholarly journals Characteristics of pulsed power generator by versatile inductive voltage adder

2005 ◽  
Vol 23 (4) ◽  
pp. 573-581 ◽  
Author(s):  
KIYOSHI YATSUI ◽  
KOUICHI SHIMIYA ◽  
KATSUMI MASUGATA ◽  
MASAO SHIGETA ◽  
KAZUHIKO SHIBATA
Keyword(s):  
Electron Beam ◽  
Output Voltage ◽  
Potential Gradient ◽  
Open Circuit ◽  
Pulsed Power ◽  
Marx Generator ◽  
Good Reproducibility ◽  
Charge Voltage ◽  
Power Generator ◽  
Pulsed Power Generator

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.

scholarly journals Impedance control using electron beam diode in intense pulsed-power generator

2015 ◽  
Vol 33 (2) ◽  
pp. 163-167 ◽  
Author(s):  
Ryota Hayashi ◽  
Tomoaki Ito ◽  
Fumihiro Tamura ◽  
Takahiro Kudo ◽  
Naoto Takakura ◽  
...  
Keyword(s):  
Electron Beam ◽  
Space Charge ◽  
Impedance Control ◽  
Pulsed Power ◽  
Space Charge Limited Current ◽  
Input Energy ◽  
Output Current ◽  
Power Generator ◽  
Limited Current ◽  
Pulsed Power Generator

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.

scholarly journals A high repetitive rate intense electron beam accelerator based on high coupling Tesla transformer

2011 ◽  
Vol 29 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Jian-Chang Peng ◽  
Guo-Zhi Liu ◽  
Xiao-Xin Song ◽  
Jian-Cang Su
Keyword(s):  
Electron Beam ◽  
Short Pulse ◽  
High Voltage Pulse ◽  
Coupling Factor ◽  
Magnetic Core ◽  
Pulsed Power ◽  
Power Generators ◽  
Tesla Transformer ◽  
Intense Electron Beam ◽  
Intense Electron

AbstractTesla transformers are widely used in short pulse, repetition pulsed power generators. In this paper, a high repetitive rate intense electron beam accelerator (IEBA) based on high coupling (~1) Tesla transformer, which consists of a primary charging system, coaxial pulse forming line (PFL) charged by Tesla transformer and gas spark switch is described, especially stressed on the high coupling Tesla transformer. By introducing magnetic core to enhance the coupling factor between the primary and secondary windings, the transformer is capable of producing high voltage pulse up to 1.4 MV in approximately 45 µs. A coaxial pulse forming line is closely attached to the transformer that the outer and inner magnetic cores are parts of the PFL's outer and inner conductors respectively. In addition, the parameters of the Tesla transformer and PFL are calculated, including the dimension of the PFL and Tesla transformer. Some experiment results showed that the IEBA is capable of producing electron beams of 300–700 kV/7–13 kA at repetitive rate 100 Hz, with the pulse width 35 ns. The maximal energy efficiency of the Tesla transformer is 83%.

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