JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{langston:icalepcs2021-mopv048, author = {M.H. Langston and R. Lethin and P.D. Letourneau and J. Wei}, title = {{Fast Multipole Method (FMM)-Based Particle Accelerator Simulations in the Context of Tune Depression Studies}}, booktitle = {Proc. ICALEPCS'21}, pages = {271--276}, eid = {MOPV048}, language = {english}, keywords = {simulation, multipole, space-charge, hadron, HOM}, venue = {Shanghai, China}, series = {International Conference on Accelerator and Large Experimental Physics Control Systems}, number = {18}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {03}, year = {2022}, issn = {2226-0358}, isbn = {978-3-95450-221-9}, doi = {10.18429/JACoW-ICALEPCS2021-MOPV048}, url = {https://jacow.org/icalepcs2021/papers/mopv048.pdf}, abstract = {{As part of the MACH-B (Multipole Accelerator Codes for Hadron Beams) project, we have developed a Fast Multipole Method (FMM**)-based tool for higher fidelity modeling of particle accelerators for high-energy physics within Fermilab’s Synergia* simulation package. We present results from our implementations with a focus on studying the difference between tune depression estimates obtained using PIC codes for computing the particle interactions and those obtained using FMM-based algorithms integrated within Synergia. In simulating the self-interactions and macroparticle actions necessary for accurate simulations, we present a newly-developed kernel inside of a kernel-independent FMM in which near-field kernels are modified to incorporate smoothing while still maintaining consistency at the boundary of the far-field regime. Each simulation relies on Synergia with one major difference: the way in which particles interactions were computed. Specifically, following our integration of the FMM into Synergia, changes between PIC-based computations and FMM-based computations are made by changing only the method for near-field (and self) particle interactions.}}, }