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@inproceedings{som:hiat2022-tu2i2,
author = {S. Som and A. Bandyopadhyay and S. Bandyopadhyay and S. Bhattacharya and P. Bhattacharyya and T. Bhattacharyya and U. Bhunia and N. Chaddha and J. Debnath and M.K. Dey and A. Dutta Gupta and S. Ghosh and A. Mandal and P.Y. Nabhiraj and C. Nandi and Z.A. Naser and S. Pal and U. Panda and J. Pradhan and A. Roy and S. Saha and S. Seth and S.K. Thakur},
% author = {S. Som and A. Bandyopadhyay and S. Bandyopadhyay and S. Bhattacharya and P. Bhattacharyya and T. Bhattacharyya and others},
% author = {S. Som and others},
title = {{Development and Commissioning of the K500 Superconducting Heavy Ion Cyclotron}},
booktitle = {Proc. HIAT'22},
% booktitle = {Proc. 15th International Conference on Heavy Ion Accelerator Technology (HIAT'22)},
pages = {46--51},
eid = {TU2I2},
language = {english},
keywords = {cyclotron, cavity, extraction, MMI, resonance},
venue = {Darmstadt, Germany},
series = {International Conference on Heavy Ion Accelerator Technology},
number = {15},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2022},
issn = {2673-5547},
isbn = {978-3-95450-240-0},
doi = {10.18429/JACoW-HIAT2022-TU2I2},
url = {https://jacow.org/hiat2022/papers/tu2i2.pdf},
abstract = {{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.}},
}