Operation of the LNLS storage ring RF system

The LNLS storage ring RF system operates at 476 MHz and delivers up to 60 kW CW into a single RF cavity. Injection and accumulation in the storage ring are done at low energy after which the beam energy is ramped up to 1.37 GeV. Correspondingly the RF power changes from a very low initial value up to a high power determined by the amount of stored current. Several temperature and mechanical tuning control systems operate during ramping and steady state to keep the cavity tuned and away from instabilities. In this paper we discuss the results and experience obtained after more than one year of operation of the system.