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@inproceedings{jeong:linac2022-thpopa19, author = {H.S. Jeong and W.-H. Jung and D.-H. Kim and H.S. Kim and J.H. Kim and K.H. Kim and S.G. Kim and H.-J. Kwon and P. Lee and Y.G. Song}, % author = {H.S. Jeong and W.-H. Jung and D.-H. Kim and H.S. Kim and J.H. Kim and K.H. Kim and others}, % author = {H.S. Jeong and others}, title = {{Initial High Power RF Driving Test Using Digital LLRF for RF Conditioning of 1 MeV/n RFQ at KOMAC}}, booktitle = {Proc. LINAC'22}, % booktitle = {Proc. 31st International Linear Accelerator Conference (LINAC'22)}, pages = {781--784}, eid = {THPOPA19}, language = {english}, keywords = {rfq, LLRF, controls, cavity, experiment}, venue = {Liverpool, UK}, series = {International Linear Accelerator Conference}, number = {31}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {09}, year = {2022}, issn = {2226-0366}, isbn = {978-3-95450-215-8}, doi = {10.18429/JACoW-LINAC2022-THPOPA19}, url = {https://jacow.org/linac2022/papers/thpopa19.pdf}, abstract = {{As a part of R&D toward the RFQ based heavy ion irradiation system, the 1 MeV/n RFQ was designed, brazed, installed and commissioned by staff researchers and engineers at KOMAC of KAERI. This 1 MeV/n RFQ system includes the microwave ion source, EBIS, RFQ, quadrupole magnets, switching magnet and the target systems. The digital based Low-Level RF was developed to provide the stable accelerating field to the RFQ. This Low-Level RF has features such as direct RF detection/generation without mixer, non-IQ sampling, PI feedback control, iterative learning based feed-forward control, and the digital RF interlock. In this paper, the characteristics of Low-Level RF are described, as well as the processes and results of an initial RF driving test for the RFQ’s RF conditioning.}}, }