Cryogenic thermo-acoustic oscillations highlight and study in the SPIRAL2 superconducting LINAC

Cryogenic thermoacoustic oscillations is an area of interest of several studies. For superconducting accelerators, it is an unwanted phenomena that we usually want to get rid off. The SPIRAL2 superconducting accelerator had distributed Taconis all over its cryostats. This paper spans the different steps from their first detection to their damping with a highlight on the methods and the instrumentation that has been used. The presented study also sets the ground for a real life experimental investigation of thermo-ascoustics in complex geometries such as superconducting LINACs. With modern Big data analysis and simulation tools, it also sets the ground for the developments of new data linked codes that fit these complex situations

Cryogenic thermo-acoustic oscillations highlight and study in the SPIRAL2 superconducting LINAC

Cryogenic thermoacoustic oscillations is an area of interest of several studies. For superconducting accelerators, it is an unwanted phenomena that we usually want to get rid off. The SPIRAL2 superconducting accelerator had distributed Taconis all over its cryostats. This paper spans the different steps from their first detection to their damping with a highlight on the methods and the instrumentation that has been used. The presented study also sets the ground for a real life experimental investigation of thermo-ascoustics in complex geometries such as superconducting LINACs. With modern Big data analysis and simulation tools, it also sets the ground for the developments of new data linked codes that fit these complex situations

First full cool down of the SPIRAL 2 superconducting LINAC

International audience• First full cool down of the SPIRAL 2 superconducting linear accelerator. • Cool down requirements methods and procedures as well as actual data. • Preparing the operation mode through experimental run. • New multidisciplinary challenges between cryogenic and RF for superconducting accelerator