Simulation and measurement of beam-induced heating of ceramic vacuum chambers
In this article, we summarize recent theoretical and experimental studies of the impedance and beam-induced heating of titanium-coated ceramic vacuum chambers used in the NSLS-II injection kickers. The impedance was calculated using the field matching theory assuming planar approximation and compare...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2024-08-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.27.084501 |
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| _version_ | 1850276418385084416 |
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| author | Aamna Khan Gabriele Bassi Bernard Kosciuk Robert Todd Victor Smaluk Belkacem Bacha Paul Palecek Charles Hetzel |
| author_facet | Aamna Khan Gabriele Bassi Bernard Kosciuk Robert Todd Victor Smaluk Belkacem Bacha Paul Palecek Charles Hetzel |
| author_sort | Aamna Khan |
| collection | DOAJ |
| description | In this article, we summarize recent theoretical and experimental studies of the impedance and beam-induced heating of titanium-coated ceramic vacuum chambers used in the NSLS-II injection kickers. The impedance was calculated using the field matching theory assuming planar approximation and compared with the impedancewake2d code. For the coating thickness of a few microns, we demonstrated that the beam-induced power is dissipated in the titanium coating and that the longitudinally averaged two-dimensional power density is approximated by an analytical expression, thus allowing the use of a simplified model of the power density as input for the ansys code to simulate the temperature distribution with realistic nonuniform thickness of the Ti coating. For a few values of the NSLS-II beam current, we measured the beam-induced heating of two ceramic chambers using thermal sensors installed along the chamber and compared the measurement results with the simulations. |
| format | Article |
| id | doaj-art-d772daf276b749a993e1dfd334ec0810 |
| institution | OA Journals |
| issn | 2469-9888 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj-art-d772daf276b749a993e1dfd334ec08102025-08-20T01:50:18ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882024-08-0127808450110.1103/PhysRevAccelBeams.27.084501Simulation and measurement of beam-induced heating of ceramic vacuum chambersAamna KhanGabriele BassiBernard KosciukRobert ToddVictor SmalukBelkacem BachaPaul PalecekCharles HetzelIn this article, we summarize recent theoretical and experimental studies of the impedance and beam-induced heating of titanium-coated ceramic vacuum chambers used in the NSLS-II injection kickers. The impedance was calculated using the field matching theory assuming planar approximation and compared with the impedancewake2d code. For the coating thickness of a few microns, we demonstrated that the beam-induced power is dissipated in the titanium coating and that the longitudinally averaged two-dimensional power density is approximated by an analytical expression, thus allowing the use of a simplified model of the power density as input for the ansys code to simulate the temperature distribution with realistic nonuniform thickness of the Ti coating. For a few values of the NSLS-II beam current, we measured the beam-induced heating of two ceramic chambers using thermal sensors installed along the chamber and compared the measurement results with the simulations.http://doi.org/10.1103/PhysRevAccelBeams.27.084501 |
| spellingShingle | Aamna Khan Gabriele Bassi Bernard Kosciuk Robert Todd Victor Smaluk Belkacem Bacha Paul Palecek Charles Hetzel Simulation and measurement of beam-induced heating of ceramic vacuum chambers Physical Review Accelerators and Beams |
| title | Simulation and measurement of beam-induced heating of ceramic vacuum chambers |
| title_full | Simulation and measurement of beam-induced heating of ceramic vacuum chambers |
| title_fullStr | Simulation and measurement of beam-induced heating of ceramic vacuum chambers |
| title_full_unstemmed | Simulation and measurement of beam-induced heating of ceramic vacuum chambers |
| title_short | Simulation and measurement of beam-induced heating of ceramic vacuum chambers |
| title_sort | simulation and measurement of beam induced heating of ceramic vacuum chambers |
| url | http://doi.org/10.1103/PhysRevAccelBeams.27.084501 |
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