Self-consistent simulation of an electron beam for a new autoresonant x-ray generator based on TE 102 rectangular mode

3rd International Meeting for Researchers in Materials and Plasma Technology; 1st Symposium on Nanoscience and Nanotechnology

物理学;材料科学

Dugar-Zhabon, V.D.^1 ; Orozco, E.A.^1 ; Herrera, A.M.^1,2

Universidad Industrial de Santander, Bucaramanga, Colombia^1

Heildelberg Institute for Theoretical Studies, Heildelberg, Germany^2

关键词: Axially symmetric;    Cyclotron autoresonance;    Electromagnetic particle;    Ferrite isolators;    Magnetic field profile;    Magnetron oscillators;    Rectangular cavity;    Self-consistent simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/687/1/012076/pdf
DOI  :  10.1088/1742-6596/687/1/012076

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The space cyclotron autoresonance interaction of an electron beam with microwaves of TE102rectangular mode is simulated. It is shown that in these conditions the beam electrons can achieve energies which are sufficient to generate hard x-rays. The physical model consists of a rectangular cavity fed by a magnetron oscillator through a waveguide with a ferrite isolator, an iris window and a system of dc current coils which generates an axially symmetric magnetic field. The 3D magnetic field profile is that which maintains the electron beam in the space autoresonance regime. To simulate the beam dynamics, a full self-consistent electromagnetic particle-in-cell code is developed. It is shown that the injected 12keV electron beam of 0.5A current is accelerated to energy of 225keV at a distance of an order of 17cm by 2.45GHz standing microwave field with amplitude of 14kV/cm.