Title :
A 700 MHz, 1 mW CW RF System for a FEL 100 mA RF Photoinjector
Author :
Roybal, W.T. ; Reass, W.A. ; Nguyen, D.C. ; Rees, D.E. ; Torrez, P.A. ; Tallerico, P.J.
Author_Institution :
Los Alamos National Laboratory, Los Alamos, NM, U.S.A.
Abstract :
This paper describes a 700 MHz, 1 Megawatt continuous wave (CW), high efficiency klystron RF system utilized for a Free Electron Laser (FEL) high-brightness electron photoinjector (PI) [1,2]. The E2V klystron is a mod-anode tube that operates with a beam voltage of 95 kV. This klystron, operating with a 66% efficiency, requires ∼ 96 watts of input power to produce 1007 kW output. This output drives the 3rd cell of a 2 cell, π-mode cavity. Coupling is via a ridge-loaded tapered waveguide section and “dog-bone” iris. This paper will present the design of the RF, RF transport, coupling, and monitoring/protection systems that are required to support CW operations of the 100 mA cesiated, semi-porous SiC photoinjector.
Keywords :
Electrons; Insulated gate bipolar transistors; Klystrons; Laboratories; Life estimation; Power supplies; Radio frequency; System testing; Thyristors; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1591129
