| Published Articles | |
| Title | Commissioning of the electron injector for the AWAKE experiment |
| Author(s) | Kim, S -Y (UNIST, Ulsan) ; Doebert, S (CERN) ; Apsimon, O (Manchester U.) ; Apsimon, R (Lancaster U.) ; Burt, G (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Dayyani, M (IPM, Tehran) ; Gessner, S (CERN) ; Gorgisyan, I (CERN) ; Granados, E (CERN) ; Mazzoni, S (CERN) ; Moody, J T (Munich, Max Planck Inst.) ; Turner, M (CERN) ; Williamson, B (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Chung, M (UNIST, Ulsan) |
| Publication | 2020 |
| Number of pages | 7 |
| In: | Nucl. Instrum. Methods Phys. Res., A 953 (2020) 163194 |
| DOI | 10.1016/j.nima.2019.163194 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN AWAKE |
| Abstract | The advanced wakefield experiment (AWAKE) at CERN is the first proton beam-driven plasma wakefield acceleration experiment. The main goal of AWAKE RUN 1 was to demonstrate seeded self-modulation (SSM) of the proton beam and electron witness beam acceleration in the plasma wakefield. For the AWAKE experiment, a 10-meter-long Rubidium-vapor cell together with a high-power laser for ionization was used to generate the plasma. The plasma wakefield is driven by a 400 GeV/c proton beam extracted from the super proton synchrotron (SPS), which undergoes a seeded self-modulation process in the plasma. The electron witness beam used to probe the wakefields is generated from an S-band RF photo-cathode gun and then accelerated by a booster structure up to energies between 16 and 20 MeV. The first run of the AWAKE experiment revealed that the maximum energy gain after the plasma cell is 2 GeV, and the SSM mechanism of the proton beam was verified. In this paper, we will present the details of the AWAKE electron injector. A comparison of the measured electron beam parameters, such as beam size, energy, and normalized emittance, with the simulation results was performed. |
| Copyright/License | publication: © 2019-2024 Crown Copyright (License: CC-BY-4.0) |
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Registre creat el 2020-01-10, darrera modificació el 2022-08-10