IPAC2013 - List of Authors (Li, C.)

Paper	Title	Page
WEPWA024	Study of an Electron Gun for Terahertz Radiation Source	2184
	J. Li, C. Li, Y.J. Pei, L. Shang USTC/NSRL, Hefei, Anhui, People's Republic of China Q.S. Chen, T. Hu HUST, Wuhan, People's Republic of China G. Feng DESY, Hamburg, Germany
	With the aim to obtain short-pulse bunches with high peak current for a terahertz radiation source, an RF gun with independently tunable cells (ITC) was employed. As the electron source of the ITC RF gun, a grid-control DC gun plays a key role, the performance of which determines the beam quality in the injector and transport line. In order to make the beam well compressed in the ITC RF gun, the energy of the electrons acquired from the grid-control DC gun should be 15 KeV at most. A proper structure of the grid-gun is shown to overcome the strong space charge force on the cathode, which is able to generate 1us beam with 4.5A current successfully. Simulations considering the grid net are also introduced.

Paper

Title

Page

Study of an Electron Gun for Terahertz Radiation Source

2184

J. Li, C. Li, Y.J. Pei, L. Shang
USTC/NSRL, Hefei, Anhui, People's Republic of China
Q.S. Chen, T. Hu
HUST, Wuhan, People's Republic of China
G. Feng
DESY, Hamburg, Germany

With the aim to obtain short-pulse bunches with high peak current for a terahertz radiation source, an RF gun with independently tunable cells (ITC) was employed. As the electron source of the ITC RF gun, a grid-control DC gun plays a key role, the performance of which determines the beam quality in the injector and transport line. In order to make the beam well compressed in the ITC RF gun, the energy of the electrons acquired from the grid-control DC gun should be 15 KeV at most. A proper structure of the grid-gun is shown to overcome the strong space charge force on the cathode, which is able to generate 1us beam with 4.5A current successfully. Simulations considering the grid net are also introduced.