Three turn secondary for the prototype SLAC solid state induction modulator

Author

Cassel, R.L. ; deLamare, J.E. ; Nguyen, M.N. ; Pappas, G.C. ; Cook, E. ; Sullivan, J. ; Brooksby, C.

fYear

2002

fDate

30 June-3 July 2002

Firstpage

118

Lastpage

120

Abstract

The Next Linear Collider accelerator proposal at SLAC requires a high efficiency, highly reliable, and low cost pulsed power modulator to drive the X band klystrons. The present NLC envisions a solid state induction modulator design to drive up to 8 klystrons to 500 kV for 3(S) at 120 PPS with one modulator (>1000 megawatt pulse, 500 kW average). A prototype modulator is under construction, which will power 4 each 5045 SLAC klystron to greater than 380 kV for 3(S) (>600 megawatt pulse, >300 kW ave.). The prototype induction modulator utilizes a three-turn secondary to produce the 500 kV pulse. The design, installation and testing of the three turn secondary and its effect on rise time and fault conditions is discussed. The design and implementation of a snubber to improve the arcing condition are covered.

Keywords

accelerator RF systems; insulated gate bipolar transistors; klystrons; linear accelerators; power bipolar transistors; pulse generators; pulse modulation; pulsed power supplies; testing; 500 kV; IGBT; Next Linear Collider accelerator; SLAC; X band klystrons; arc testing; arcing condition; fault conditions; high efficiency; low cost pulsed power modulator; rise time; snubber; solid state induction modulator; testing; three turn secondary; Costs; Klystrons; Linear accelerators; Modular construction; Proposals; Prototypes; Pulse modulation; Snubbers; Solid state circuits; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop. Conference Record of the Twenty-Fifth International

ISSN

1076-8467

Print_ISBN

0-7803-7540-8

Type

conf

DOI

10.1109/MODSYM.2002.1189430

Filename

1189430