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U.S. Department of Energy
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ILC MARX MODULATOR DEVELOPMENT PROGRAM STATUS

Conference · · Conf.Proc.C100523:THOARA03,2010
OSTI ID:992971

A Marx-topology klystron modulator is under development for the International Linear Collider (ILC) project. It is envisioned as a lower cost, smaller footprint, and higher reliability alternative to the present, bouncer-topology, baseline design. The application requires 120 kV (+/-0.5%), 140 A, 1.6 ms pulses at a rate of 5 Hz. The Marx constructs the high voltage pulse by combining, in series, a number of lower voltage cells. The Marx employs solid state elements; IGBTs and diodes, to control the charge, discharge and disolation of the cells. Active compensation of the output is used to achieve the voltage regulation while minimizing the stored energy. The developmental testing of a first generation prototype, P1, has been completed. This modulator has been integrated into a test stand with a 10 MW L-band klystron, where each is undergoing life testing. Development of a second generation prototype, P2, is underway. The P2 is based on the P1 topology but incorporates an alternative cell configuration to increase redundancy and improve availability. Status updates for both prototypes are presented.

Research Organization:
SLAC National Accelerator Laboratory (SLAC)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
992971
Report Number(s):
SLAC-PUB-14147
Journal Information:
Conf.Proc.C100523:THOARA03,2010, Journal Name: Conf.Proc.C100523:THOARA03,2010
Country of Publication:
United States
Language:
English

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