Accelerator and Klystron (Ⅲ) Klystron Failure Analysis, Emission Control, Phase Variation and Maintenance

Abstract

Klystron failure analysis, emission control, phase variation and maintenance are described in this last paper of three successive series. Four main failure causes extracted from SLAC data of SLAC 1965-1982, and KEK data are explained in detail. Regarding to Klystron life, KEKs dip test which is a quick way to examine the emission is explained. The phase variation should be small for accelerator and good stability on applied voltage and cooling water temperature are essential. Klystron maintenance which is important for the effective use is explained.