A Proposal for an Automatic Longitudinal Tomography Demonstration Project in the Proton Synchrotron Booster

Longitudinal phase space tomography is a vital tool for beam diagnostics in most of the CERN synchrotrons, it is used to reconstruct the longitudinal phase space, and to measure the longitudinal emittance and energy spread. At present, measurements are taken punctually to confirm that beam parameters meet specifications. However, because measurements are intermittent, any slow variations are difficult to identify, and transient ones may be missed, potentially delaying the identification of faults. This is particularly relevant after Long Shutdown 2, during which significant changes have been made to the LHC injector complex. In the PSB these changes include a new injector linac and injection system, higher injection and extraction energies, as well as new RF systems, amongst many others. This note proposes a demonstration system for automatic tomographic reconstruction in the PSB, and gives an overview of the expected requirements for its implementation, and a proposed solution for meeting them.