3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite
Radiofrequency cavities based on superconducting technology are widely used in particle accelerators for various applications. The cavities usually have high quality factors and hence narrow bandwidths, so the field stability is sensitive to detuning from the Lorentz force and external loads, includ...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017-10-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.20.102001 |
| _version_ | 1828445850523664384 |
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| author | Oleksiy Kononenko Chris Adolphsen Zenghai Li Cho-Kuen Ng Claudio Rivetta |
| author_facet | Oleksiy Kononenko Chris Adolphsen Zenghai Li Cho-Kuen Ng Claudio Rivetta |
| author_sort | Oleksiy Kononenko |
| collection | DOAJ |
| description | Radiofrequency cavities based on superconducting technology are widely used in particle accelerators for various applications. The cavities usually have high quality factors and hence narrow bandwidths, so the field stability is sensitive to detuning from the Lorentz force and external loads, including vibrations and helium pressure variations. If not properly controlled, the detuning can result in a serious performance degradation of a superconducting accelerator, so an understanding of the underlying detuning mechanisms can be very helpful. Recent advances in the simulation suite ace3p have enabled realistic multiphysics characterization of such complex accelerator systems on supercomputers. In this paper, we present the new capabilities in ace3p for large-scale 3D multiphysics modeling of superconducting cavities, in particular, a parallel eigensolver for determining mechanical resonances, a parallel harmonic response solver to calculate the response of a cavity to external vibrations, and a numerical procedure to decompose mechanical loads, such as from the Lorentz force or piezoactuators, into the corresponding mechanical modes. These capabilities have been used to do an extensive rf-mechanical analysis of dressed TESLA-type superconducting cavities. The simulation results and their implications for the operational stability of the Linac Coherent Light Source-II are discussed. |
| first_indexed | 2024-12-10T22:03:44Z |
| format | Article |
| id | doaj.art-0156619cefd64d80b89b2f9f7fa7f6b5 |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-12-10T22:03:44Z |
| publishDate | 2017-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-0156619cefd64d80b89b2f9f7fa7f6b52022-12-22T01:31:49ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882017-10-01201010200110.1103/PhysRevAccelBeams.20.1020013D multiphysics modeling of superconducting cavities with a massively parallel simulation suiteOleksiy KononenkoChris AdolphsenZenghai LiCho-Kuen NgClaudio RivettaRadiofrequency cavities based on superconducting technology are widely used in particle accelerators for various applications. The cavities usually have high quality factors and hence narrow bandwidths, so the field stability is sensitive to detuning from the Lorentz force and external loads, including vibrations and helium pressure variations. If not properly controlled, the detuning can result in a serious performance degradation of a superconducting accelerator, so an understanding of the underlying detuning mechanisms can be very helpful. Recent advances in the simulation suite ace3p have enabled realistic multiphysics characterization of such complex accelerator systems on supercomputers. In this paper, we present the new capabilities in ace3p for large-scale 3D multiphysics modeling of superconducting cavities, in particular, a parallel eigensolver for determining mechanical resonances, a parallel harmonic response solver to calculate the response of a cavity to external vibrations, and a numerical procedure to decompose mechanical loads, such as from the Lorentz force or piezoactuators, into the corresponding mechanical modes. These capabilities have been used to do an extensive rf-mechanical analysis of dressed TESLA-type superconducting cavities. The simulation results and their implications for the operational stability of the Linac Coherent Light Source-II are discussed.http://doi.org/10.1103/PhysRevAccelBeams.20.102001 |
| spellingShingle | Oleksiy Kononenko Chris Adolphsen Zenghai Li Cho-Kuen Ng Claudio Rivetta 3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite Physical Review Accelerators and Beams |
| title | 3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite |
| title_full | 3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite |
| title_fullStr | 3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite |
| title_full_unstemmed | 3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite |
| title_short | 3D multiphysics modeling of superconducting cavities with a massively parallel simulation suite |
| title_sort | 3d multiphysics modeling of superconducting cavities with a massively parallel simulation suite |
| url | http://doi.org/10.1103/PhysRevAccelBeams.20.102001 |
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