13 years’ operational experience of SPring-8 vacuum system

The first electron beam was stored in SPring-8 storage ring in March 1997. An overview of the 13 years’ operational experience concerning the vacuum system of the SPring-8 storage ring is presented. The evolution of the vacuum system and their performance are summarized. Moreover, the main vacuum failures and their impact on accelerator operation are described in detail. We analyze the relationship between the difference types of vacuum failure and downtime of user experiment.

► Storage ring with large vacuum system at synchrotron radiation facility.
► Evolution of the vacuum system, and its current status and performance.
► Vacuum failures and their impact on accelerator operation.
► Relationship between the different types of vacuum failure and downtime for users.