SPACE CHARGE MEASUREMENTS AT THE PSB

The PS Booster (PSB) is an accelerator working under very high space charge during the first part of its cycle. After the change of tune, it was necessary to revisit the space charge effects to try to understand and possibly improve the situation. In addition, the Linac2 will be replaced by the Linac4 providing an H - injection in the PSB at 160 MeV. This energy is chosen to reduce by a factor 2 the space charge effect with the same beam characteristics. It was then needed to make some measurements at this energy, not only to find the limits but also to benchmark some simulation with available programs [1].