High-intensity pulsed beam source with tunable operation mode

5th International Congress on Energy Fluxes and Radiation Effects 2016

Nashilevskiy, A.V.^1 ; Kanaev, G.G.^1 ; Ezhov, V.V.^1 ; Shamanin, V.I.^1

National Research Tomsk Polytechnic University, Lenina avenue 30, Tomsk

634050, Russia^1

关键词: Electrical breakdown;    High voltage pulse transformers;    High-voltage pulse generator;    Material modifications;    Output impedance;    Pulsed accelerator;    Technological process;    Tunable operations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012039/pdf
DOI  :  10.1088/1742-6596/830/1/012039

来源: IOP

【 摘 要 】

The report presents the design of an electron and an ion pulsed accelerator. The powerful high-voltage pulse generator of the accelerator and the vacuum bushing insulator is able to change the polarity of the output voltage. The low-inductance matching transformer provides an increase in the DFL output impedance by 4 times. The generator based on a high voltage pulse transformer and a pseudo spark switch is applied for DFL charging. The high-impedance magnetically insulated focusing diode with Br magnetic field and the "passive" anode was used to realize the ion beam generation mode. The plasma is formed on the surface of the anode caused by an electrical breakdown at the voltage edge pulse; as a result, the carbon ion and proton beam is generated. This beam has the following parameters: the current density is about 400 A/cm2 (in focus): the applied voltage is up to 450 kV. The accelerator is designed for the research on the interaction of the charged particle pulsed beams with materials and for the development of technological processes of a material modification.