Speaker
Description
The AWAKE facility utilises high-intensity single bunches to drive resonant wakes in plasma for the acceleration of electrons. Twice shorter bunches are required from the CERN Super Proton Synchrotron (SPS) for the next phase of the experimental programme. In addition, the reproducibility of the bunch distribution and intensity is essential. This contribution summarises the key improvements to approach the new target parameters. An enhanced bunch production scheme was developed in the Proton Synchrotron Booster (PSB). It allows the preservation of the small longitudinal emittance during acceleration in the Proton Synchrotron (PS) without triggering an instability during the transition crossing. In addition, a double-voltage jump bunch rotation scheme has been implemented in the SPS, with radio-frequency (RF) voltage functions synchronised to the variable extraction time. The measurement results confirm the feasibility of achieving the target beam parameters.
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter. |
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