Upgrade of the Two-Screen Measurement Setup in the AWAKE Experiment

M. Turner; V. Clerc; I. Gorgisyan; E. Gschwendtner; S. Mazzoni; A. Petrenko

doi:10.1088/1742-6596/874/1/012031

paper

Upgrade of the Two-Screen Measurement Setup in the AWAKE Experiment

arXiv:1810.01929 · doi:10.1088/1742-6596/874/1/012031

Abstract

The AWAKE project at CERN uses a self-modulated \SI{400}{GeV/c} proton bunch to drive GV/m wakefields in a \SI{10}{m} long plasma with an electron density of $n_{p e} = 7 \times 1 0^{14} electrons/cm^{3}$ . We present the upgrade of a proton beam diagnostic to indirectly prove that the bunch self-modulated by imaging defocused protons with two screens downstream the end of the plasma. The two-screen diagnostic has been installed, commissioned and tested in autumn 2016 and limitations were identified. We plan to install an upgraded diagnostics to overcome these limitations.

3 pages, 4 figure