High power radio frequency systems for LEHIPA

The Low Energy High Intensity Proton Accelerator (LEHIPA) has been indigenously built and proton beam has been accelerated to an energy of 20 MeV. This has been achieved by driving a cascade of three accelerator cavities; Radio frequency quadrupoles (RFQ) and two stages of Drift Tube Linacs (DTL) i.e. 10 MeV DTL and 20 MeV DTL by each of the three klystron based high power 1 MW at 352 MHz systems. The thoroughly tested radio frequency (RF) and DC components and/or sub systems, power supplies, measurement and diagnostics, interlock and protection systems were integrated, tested and commissioned as a consolidated high power RF (HPRF) system. The RF power from klystron RF system is transmitted through high power rectangular waveguide WR2300 systems towards accelerating cavity. A solid-state power amplifier of 10 kW has been developed and powers the buncher cavity. (author)