Düşük yayınımlı yüksek güçlü termiyonik DC elektron tabancası tasarımı ve uygulaması

In this thesis, a thermionic electron gun generating low emittance and the high power electron beam is designed. The thermionic cathode made of a LaB$_6$ single crystal is chosen as a thermionic emitter because of its properties ensuring high electron beam current in lower temperatures which provide lower emittance. The main goal of the gun design is to achieve a high DC beam current and low emittance. Computer Simulation Technology (CST) and MATLAB are used to design the gun and optimize electrode shapes and corresponding fields. In addition, control and regulation of electron beam current are carried out by a focusing and control electrode in an electron gun at CST. From no current to full current, this current control is provided in every voltage step without increasing the beam's emittance value. The electron gun is kept under a high voltage DC source which varies between -60kV to -100 kV and DC beam current up to 75 mA. The simulation and test results are presented.