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TY - CONF AU - Lee, J.C. AU - Chai, J.-S. AU - Gad, Kh.M. AU - Ghergherehchi, M. AU - Ha, D.H. AU - Kim, H.S. AU - Namgoong, H. ED - Conradie, Lowry ED - De Villiers, John Garrett ED - Schaa, Volker RW TI - RF measurement of SKKUCY-10 RF Cavity for Impedance Matching J2 - Proc. of Cyclotrons2019, Cape Town, South Africa, 23-27 September 2019 CY - Cape Town, South Africa T2 - International Conference on Cyclotrons and their Applications T3 - 22 LA - english AB - The 10 MeV cyclotron was designed for next version in Sungkyunkwan University, after the SKKUCY-9 had developed for medical application for PET. The RF cavity, which generates the electric field in cyclotron, was designed based on a half-wavelength resonator and optimized to improve the unloaded quality factor (Q₀). The design specifications of RF cavity were resonance frequency 83.2 MHz, Q₀ 5830 and Dee voltage 40 kV with geometrical values resonator length 560 mm, Dee angle 35° and Stem radius 16 mm. The RF cavity of the SKKUCY-10 was fabricated and installed inside the electromagnet, and RF characteristics were measured with a network analyzer. The RF coupling coefficient and characteristic impedance for desired condition were selected at 1.08 and 52 ’, respectively. The RF coupling coefficient and characteristic impedance were measured 0.8-1.2, 52-49 ’ according to temperature as 15-21°C. The power coupler was checked for optimization of RF coupling coefficient and characteristic impedance, and the results show good agreement with simulated and measured data. PB - JACoW Publishing CP - Geneva, Switzerland SP - 100 EP - 102 KW - cavity KW - coupling KW - impedance KW - cyclotron KW - beam-loading DA - 2020/06 PY - 2020 SN - 978-3-95450-205-9 DO - doi:10.18429/JACoW-Cyclotrons2019-MOP030 UR - http://jacow.org/cyclotrons2019/papers/mop030.pdf ER -