Simulation of quench dynamics in SRF cavities under pulsed operation

Research output: Contribution to conferencePaperpeer-review

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Abstract

As has been well verified both theoretically and experimentally in steady state, the thermal stability of SRF (superconducting radio-frequency) cavities strongly depends on the material properties of niobium such as RRR (residual resistivity ratio) and the presence of material defects on the surface. Recently, SRF technology has been chosen for pulsed machines such as the Tesla Test Facility (TTF), the Spallation Neutron Source (SNS), and the European Spallation Source (ESS). In order to guide the selection of operational limits and materials, an understanding of dynamics of quenching in pulsed operation is important. For this purpose, a universal thermal stability analysis algorithm is set up. With the help of 3D FEM codes, a series of transient, non-linear and self-correlated analyses are carried out. This scheme may be used for any stability analysis in SRF cavities with arbitrary conditions such as 3D structure, varying material properties, transient behavior, non-linear material properties, etc.

Original languageEnglish
Pages1365-1367
Number of pages3
StatePublished - 2003
Externally publishedYes
EventPAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference - Portland, OR, United States
Duration: May 12 2003May 16 2003

Conference

ConferencePAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference
Country/TerritoryUnited States
CityPortland, OR
Period05/12/0305/16/03

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