Longitudinal dynamics of the Barrier Bucket Multi-Turn Extraction transfer from PS to SPS

Barrier buckets are now running in operation since 2022 to limit beam loss at PS extraction for the SFTPRO beam, which are sent to the SPS North Area. Together with the Multi-Turn Extraction (MTE) scheme, these manipulations lead to particular transverse and longitudinal dynamics during the transfer process which require studies to increase the beam intensity. In this context, several beam tests on a copy of the operational SFTPRO beam were done during the internship in order to optimize the transfer process for intensities beyond operational values. In this report, a study of the longitudinal transfer dynamics of the SFTPRO beam is presented, along with intensity-dependent effects.