Initial optimization of fine tuner’s position on the cyclotron DECY-13’s rf dee system

Abstract

Initial optimization of fine tuner’s position on the cyclotron DECY-13’s rf dee system. Initial optimization of fine tuner’s position has been carried out on the cyclotron DECY-13’s RF dee system. The initial optimization was carried out to obtain the resonance frequency 77,76 MHz between RF generator and RF dee system in accordance with the specification of cyclotron DECY-13. The optimization was performed by measuring cyclotron DECY-13’s frequency using the Network Analyzer tool while shifting the fine tuner’s position. The shifting of fine tuner’s position started from the farthest to the closest gap between fine tuner and dee component with an increment of 5 mm continued with an increment of 1 mm from the nearest measured frequency. We obtain cyclotron DECY-13’s frequency for position 0 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm respectively 77,925 MHz, 77,875 MHz, 77,775 MHz, 77,625 MHz, 77,325 MHz, 76,075 MHz and the nearest frequency is 77,75 MHz, obtained in the position of 11 mm from the farthest gap. These results could be used as a reference point in the future experiment mainly in cyclotron’s hot test and fine tuner’s control system.