Heat Transfer, Thermal Stress Analysis and the Dynamic Behaviour of High Power RF Structures
| Autor: | Joseph Mckeown, J.-P. Labrie |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Nuclear and High Energy Physics
Engineering Steady state Shunt impedance business.industry Mechanical engineering Mechanics Finite element method Linear particle accelerator Nuclear Energy and Engineering Heat transfer Physics::Accelerator Physics Radio frequency Transient (oscillation) Electrical and Electronic Engineering Coaxial business |
| Zdroj: | IEEE Transactions on Nuclear Science. 30:3593-3595 |
| ISSN: | 0018-9499 |
| DOI: | 10.1109/tns.1983.4336736 |
| Popis: | A general purpose finite element computer code called MARC is used to calculate the temperature distribution and dimensional changes in linear accelerator rf structures. Both steady state and transient behaviour are examined with the computer model. Combining results from MARC with the cavity evaluation computer code SUPERFISH, the static and dynamic behaviour of a structure under power is investigated. Structure cooling is studied to minimize loss in shunt impedance and frequency shifts during high power operation. Results are compared with an experimental test carried out on a cw 805 MHz on-axis coupled structure at an energy gradient of 1.8 MeV/m. The model has also been used to compare the performance of on-axis and coaxial structures and has guided the mechanical design of structures suitable for average gradients in excess of 2.0 MeV/m at 2.45 GHz. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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