Beam studies using a Cherenkov diffraction based beam position monitor for AWAKE

Conference item

A beam position monitor based on Cherenkov diffraction radiation (ChDR) is being investigated as a way to disentangle the signals generated by the electromagnetic fields of a short-pulse electron bunch from a long proton bunch co-propagating in the AWAKE plasma acceleration experiment at CERN. These ChDR BPMs have undergone renewed testing under a variety of beam conditions with proton and electron bunches in the AWAKE common beamline, at 3 different frequency ranges between 20-110 GHz to quantify the effectiveness of discriminating the electron beam position with and without proton bunches present. These results indicate an increased sensitivity to the electron beam position in the highest frequency bands. Furthermore, high frequency studies investigating the proton bunch spectrum show that a much higher frequency regime is needed to exclude the proton signal than previously expected.

Authors: Spear, B; Burrows, PN; Pakuza, C; Senes, E; Mazzoni, S

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: JACoW Publishing
• Host title: Proceedings of the 15th International Particle Accelerator Conference
• Pages: 2327-2330
• Article number: WEPG49
• Publication date: 2024-07-01
• Acceptance date: 2024-05-23
• Event title: 15th International Particle Accelerator Conference (IPAC24)
• Event location: Nashville, Tennessee, USA
• Event website: https://accelconf.web.cern.ch/ipac2024/index.html
• Event start date: 2024-05-19
• Event end date: 2024-05-24
• DOI: 10.18429/JACoW-IPAC2024-WEPG49
• EISSN: 2673-5490
• EISBN: 9783954502479
• Language: English