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@inproceedings{baumgarten:hb2023-thbp34, author = {C. Baumgarten and H. Zhang}, title = {{PSI Injector II and the 72 MeV Transfer Line: MinT-Simulation vs. Measurements}}, % booktitle = {Proc. HB'23}, booktitle = {Proc. 68th Adv. Beam Dyn. Workshop High-Intensity High-Brightness Hadron Beams (HB'23)}, eventdate = {2023-10-09/2023-10-13}, pages = {547--550}, paper = {THBP34}, language = {english}, keywords = {cyclotron, emittance, space-charge, simulation, extraction}, venue = {Geneva, Switzerland}, series = {ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams}, number = {68}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {04}, year = {2024}, issn = {2673-5571}, isbn = {978-3-95450-253-0}, doi = {10.18429/JACoW-HB2023-THBP34}, url = {https://jacow.org/hb2023/papers/thbp34.pdf}, abstract = {{PSI’s Injector II cyclotron is the only cyclotron worldwide that makes use of the so-called "Vortex effect", in which strong space charge forces generate the counter-intuitive effect to "roll up" bunches thus keeping them longitudinally compact. The effect has been verified by bunch shape measurements and the PIC-code OPAL. However, PSI’s new fast matrix code MinT allows to reproduce the Vortex effect by a linear matrix model which is computational much cheaper than PIC simulations, and is suitable for "online use" in Control rooms. Furthermore it provides the second moments of matched distributions.}}, }