Modulator R&D for a next generation linear collider

Author

Koontz, R.F.

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

fYear

2000

fDate

26-29 June 2000

Firstpage

149

Lastpage

152

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Modulator Symposium, 2000. Conference Record of the 2000 Twenty-Fourth International

Conference_Location

Norfolk, VA, USA

ISSN

1076-8467

Print_ISBN

0-7803-5826-0

Type

conf

DOI

10.1109/MODSYM.2000.896187

Filename

896187