Title :
A solid state induction modulator for SLAC NLC
Author :
Cassel, R.L. ; Pappas, G.C. ; Nguyen, M.N. ; deLamare, J.E.
Author_Institution :
Linear Accel. Center, Stanford, CA, USA
Abstract :
The Next Linear Collider accelerator proposal at SLAC requires a high efficiency, highly reliable, and low cost pulsed-power modulator to drive the 500 KV, 260A X band klystrons. With a pulse width of less than 1.5 microseconds, it is difficult for the present SLAC type modulator with conventional pulse transformer to have a high efficiency due primarily to the inherently slow rise and fall time of the video pulse. The proposed induction modulator utilises a pulse transformer similar to an induction accelerator driven by solid state high voltage IGBTs. The performance of the IGBTs, induction cores and a low voltage model will be discussed as well as the design and construction of a prototype modulator capable of driving up to 8 of the X band klystrons
Keywords :
accelerator RF systems; electron accelerators; insulated gate bipolar transistors; klystrons; linear colliders; modulators; pulse modulation; 1.5 s; 260 A; 500 kV; IGBT; NLC; Next Linear Collider; X band klystrons; induction cores; low voltage; pulse transformer; pulse width; pulsed-power modulator; solid state induction modulator; video pulse; Costs; Insulated gate bipolar transistors; Klystrons; Linear accelerators; Proposals; Pulse modulation; Pulse transformers; Pulse width modulation; Solid state circuits; Space vector pulse width modulation;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794145
