SLAC LINAC Sub-booster Modulator Upgrading with Solid State Switch

Abstract

The LINAC sub-booster modulator was designed in last 60s decade and has serviced SLAC LINAC about 60 years without primary switching upgrade. The primary switch for high power pulse is vacuum tetrode switch. Recently the vacuum switch price has surged, probably because more and more customers have shifted to the solid-state switch from the vacuum switch. With the foresight of the vacuum switch will finally become obsolete in market, the solid-state switch has been tested in SLAC LINAC sub-booster modulator and the performance is evaluated. In this paper, the design and performance will be reported.