| Paper | Title | Other Keywords | Page |
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| TUP007 | Vortex Penetration Field in the Multilayered Coating Model | vacuum, cavity, superconductivity | 430 |
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A multilayered structure with a single superconductor layer and a single insulator layer deposited on a bulk superconductor is studied. General formulae for the vortex penetration-field of the superconductor layer and the magnetic field on the bulk superconductor which is shielded by the superconductor and insulator layers are derived with a rigorous calculation of the magnetic field attenuation in the multilayered structure. The formulae depend not only on the material and the thickness of the superconductor layer but also on the thickness of the insulator layer. The results can be applied to superconducting accelerating cavities with the multilayered structure. Using the formulae, a combination of the thicknesses of superconductor and insulator layers to enhance the RF breakdown field limits can be found for any given materials. (Submitted on 25 Apr 2013)
T. Kubo, Y. Iwashita and T. Saeki, arXiv:1304.6876 [physics.acc-ph](Submitted on 25 Apr 2013); arXiv:1306.4823 [physics.acc-ph](Proc. of IPAC13); arXiv:1307.0583 [physics.acc-ph](Proc. of SRF2013) |
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| TUP090 | Thermal Simulations for the Multi-Layer Coating Model | simulation, feedback, superconducting-cavity, cavity | 674 |
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Thermal simulations for the multi-layer coating model has been developed based on previous work of a finite difference thermal feedback code.* RF field-attenuation formula for the multi-layer coating model has also been included.** The temperature distribution along different superconducting layers under applied magnetic fields has been calculated with various superconducting material parameters.
*Y. Xie et.al., "Relationship between defects pre-heating and defects size", SRF2009. **T. Kubo et.al.,"Rf field-attenuation formulae for the multilayer coating model", IPAC2013 |
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