Title :
Modulator R&D for a next generation linear collider
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
Planning for the Next Linear Collider (NLC) continues at SLAC, Fermilab, and Lawrence Livermore Lab with help from many other members of the high energy physics community. The frequency of the proposed accelerator is X-band. An X-band klystron developed at SLAC has produced 75 MW peak power capable of driving the NLC. Modulator development to drive this klystron is proceeding on two interconnected paths, one using IGBT (insulated gate bipolar transistors) switched induction cores to drive multiple (8) klystrons, and the second path supported by SBIR grants looking at direct IGBT switching or IGBT switches in conjunction with optimized conventional pulse transformers. Conventional thyratron modulators are not yet out of the picture as the long term reliability of IGBTs in pulse service must still be proved. This paper reviews some of the modulator designs in development.
Keywords :
accelerator RF systems; insulated gate bipolar transistors; klystrons; linear colliders; power semiconductor switches; pulse transformers; pulsed power supplies; 75 MW; Fermilab; IGBT switched induction cores; IGBT switches; Lawrence Livermore Lab; Next Linear Collider; SLAC; X-band; X-band klystron; direct IGBT switching; insulated gate bipolar transistors; long term reliability; pulse transformers; thyratron modulators; Electrons; Insulated gate bipolar transistors; Klystrons; Large Hadron Collider; Linear accelerators; Pulse modulation; Pulse transformers; Pulsed power supplies; Research and development; Synchrotron radiation;
Conference_Titel :
Power Modulator Symposium, 2000. Conference Record of the 2000 Twenty-Fourth International
Conference_Location :
Norfolk, VA, USA
Print_ISBN :
0-7803-5826-0
DOI :
10.1109/MODSYM.2000.896187
