THE IASA COOLING SYSTEM FOR THE 10 MeV LINAC

A de-ionized water cooling system for the IASA room temperature 10 MeV CW Linac has been constructed and successfully installed. Commissioning is undergoing achieving resistivity larger to 5MΩcm with a temperature accuracy of C o 1 . 0 ± for all three linacs. Three ways mixing valves with a stepping capability of one thousand different mixing steps fulfil independently for each linac the required temperature stability and the appropriate resonance frequency to our cavities. The RF requirements for the three linacs is ~200kW provided by a single high power klystron tube capable to deliver up to 500 kW CW at 2380 MHz. The klystron is been cooled with a parallel similar cooling system and a third system cools our aluminium waveguide complex. In this paper we will present the design, specifications and results of our preliminary tests. A sophisticated control and interlock system based on EPICS guarantees the proper functioning of the system.