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TY - CONF AU - Som, S. AU - Bandyopadhyay, A. AU - Bandyopadhyay, S. AU - Bhattacharya, S. AU - Bhattacharyya, P. AU - Bhattacharyya, T. AU - Bhunia, U. AU - Chaddha, N. AU - Debnath, J. AU - Dey, M.K. AU - Dutta Gupta, A. AU - Ghosh, S. AU - Mandal, A. AU - Nabhiraj, P.Y. AU - Nandi, C. AU - Naser, Z.A. AU - Pal, S. AU - Panda, U. AU - Pradhan, J. AU - Roy, A. AU - Saha, S. AU - Seth, S. AU - Thakur, S.K. ED - Herfurth, Frank ED - Schaa, Volker RW TI - Development and Commissioning of the K500 Superconducting Heavy Ion Cyclotron J2 - Proc. of HIAT2022, Darmstadt, Germany, 27 June-01 July 2022 CY - Darmstadt, Germany T2 - International Conference on Heavy Ion Accelerator Technology T3 - 15 LA - english AB - The K500 Superconducting Cyclotron (SCC) has been developed indigenously and commissioned at VECC. The three-phase Radio-Frequency (RF) system of SCC, consists of three half-wave cavities placed vertically 120 deg. apart. Each half-wave cavity has two quarter-wave cylindrical cavities tied together at the centre and symmetrically placed about median plane of the cyclotron. Each quarter-wave cavity is made up of a short circuited non-uniform coaxial transmission line (called "dee-stem") terminated by accelerating electrode (called "Dee"). The SCC, operating in the range 9 to 27 MHz, has amplitude and phase stability within 100 ppm and 0.1 deg. respectively. The overview of all the subsystems of the cyclotron along with low-level RF (LLRF), high and low power RF amplifiers, cavity analysis, absolute Dee voltage measurement using X-ray method, amplitude and phase control loops will be presented in the talk. The commissioning of the cyclotron with first harmonic Nitrogen⁴⁺ beam extracted at 252 MeV, while operating at 14 MHz RF frequency, along with the correction of first harmonic magnetic field error by repositioning the cryostat within 120 micron accuracy, will be discussed briefly. PB - JACoW Publishing CP - Geneva, Switzerland SP - 46 EP - 51 KW - cyclotron KW - cavity KW - extraction KW - MMI KW - resonance DA - 2022/08 PY - 2022 SN - 2673-5547 SN - 978-3-95450-240-0 DO - doi:10.18429/JACoW-HIAT2022-TU2I2 UR - https://jacow.org/hiat2022/papers/tu2i2.pdf ER -