The AWAKE Run 2 Programme and Beyond

Gschwendtner, Edda; Lotov, K. V.; Muggli, P.; Wing, M.; Agnello, R.; Ahdida, C.; Goncalves, M. C. Amoedo; Andrèbe, Y.; Apsimon, O.; Apsimon, R.; Arnesano, Jordan Matias; Bachmann, A.-M.; Barrientos, D.; Batsch, F.; Bencini, Vittorio; Bergamaschi, M.; Blanchard, P.; Burrows, Philip; Buttenschön, B.; Caldwell, A.; Chappell, J.; Chevallay, E.; Chung, М.; Cooke, D.; Damerau, Heiko; Davut, C.; Demeter, G.; Dexter, A.; Doebert, S.; Elverson, Francesa Ann; Farmer, John; Fasoli, A.; Fedosseev, V. N.; Fonseca, Ricardo; Furno, I.; Gessner, Spencer; Gorn, A. A.; Granados, Eduardo; Granetzny, M.; Graubner, Tim; Grulke, O.; Guran, E.; Hafych, Vasyl; Hartin, A.; Henderson, J. R.; Hüther, M.; Kedves, M. Á.; Keeble, F.; Khudiakov, Vadim; Kim, Seong-Yeol; Kraus, Florian; Krupa, Michel; Lefèvre, T.; Liang, Linbo; Liu, Shengli; Lopes, Nelson; Martínez-Calderón, Miguel; Mazzoni, Stefano; Godoy, D. Medina; Moody, J. T.; Moon, K.; Guzmán, P. I. Morales; Moreira, M.; Nechaeva, Tatiana; Nowak, E.; Pakuza, C.; Panuganti, H.; Pardons, A.; Pépitone, K.; Perera, A.; Pucek, J.; Pukhov, Alexander; Ramjiawan, Rebecca; Rey, S.; Scaachi, Adam; Schmitz, O.; Senes, Eugenio; Silva, Fernando; Silva, Luis; Stollberg, Christine; Sublet, A.; Swain, C.P.; Topaloudis, Athanasios; Torrado, N.; Tuev, P. V.; Turner, M.; Velotti, Francesco; Verra, L.; Verzilov, V.; Vieira, Jorge; Vincke, Helmut; Weidl, Martin S.; Welsch, Carsten; Wendt, M.; Wiwattananon, Peerawan; Wolfenden, Joseph; Woolley, Benjamin; Wyler, Samuel; Xia, Guoxing; Vlada, Yarygova,; Zepp, M.; Porta, G. Zevi Della

doi:10.3390/sym14081680

Cited by 11 publications

(6 citation statements)

References 75 publications

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“…It is worth mentioning that the CNGS target area where the AWAKE is installed, is going to be dismantled. This allows tens of metres space for the future set-up including the diagnostic instruments (Gschwendtner et al 2022). Therefore, rather than the preliminary experimental proposal (Williamson et al 2020), a full collection of emitted photons might be possible in the future by slightly deflecting the proton beam away from the central axis where the photons propagate.…”

Section: Discussionmentioning

confidence: 99%

“…This allows tens of metres space for the future set-up including the diagnostic instruments (Gschwendtner et al. 2022). Therefore, rather than the preliminary experimental proposal (Williamson et al.…”

Section: Discussionmentioning

confidence: 99%

“…The AWAKE is installed upstream of the CNGS target area which is going to be dismantled. This allows a much longer (tens of metres) space for future set-up including the diagnostic instruments (Gschwendtner et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…This allows a much longer (tens of metres) space for future set-up including the diagnostic instruments (Gschwendtner et al. 2022).…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of betatron radiation in AWAKE Run 2 experiment

et al. 2023

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The oscillating relativistic electrons in the accelerating/focusing wakefields of plasma accelerators emit electromagnetic radiation known as betatron radiation (BR). The proton-driven plasma wakefield acceleration has been demonstrated in the Advanced Wakefield Experiment (AWAKE) at CERN; however, its accompanying radiation emission is less explored compared with those in the laser- and electron beam-driven plasma accelerators. In this paper, a detailed simulation study of BR in the AWAKE is presented. Considering the new set-up of the AWAKE Run 2 (2021–), the radiation emission from both the witness electron beam and the seeding electron beam is investigated using particle-in-cell simulations. The influence of radial size mismatch and misaligned off-axis injection on the witness beam dynamics, as well as the spectral features of the relevant BR are studied. These non-ideal electron injections are likely to occur in experiment. The proton self-modulation stage is also investigated with a close look at the seeding electron beam dynamics and its BR. As a footprint of the emitting particles, BR can provide valuable information about the beam dynamics. Some practical challenges to implement the betatron diagnostic in the AWAKE Run 2 experiment are also addressed.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…This allows a much longer (tens of metres) space for future set-up including the diagnostic instruments (Gschwendtner et al. 2022).…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of betatron radiation in AWAKE Run 2 experiment

et al. 2023

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“…Experiments were performed at the AWAKE site at CERN, with the 10-m-long rubidium vapor source of the wakefield accelerator device [6,11,12]. A schematic drawing of the experimental setup can be seen on Fig.…”

Section: Experiments a Laser Propagation Experiments Apparatusmentioning

confidence: 99%

Generation of 10-m-lengthscale plasma columns by resonant and off-resonant laser pulses

Demeter¹,

Moody²,

Kedves³

et al. 2023

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Creating extended, highly homogeneous plasma columns like that required by plasma wakefield accelerators can be a challenge. We study the propagation of ultra-short, TW power ionizing laser pulses in a 10-meter-long rubidium vapor and the plasma columns they create. We perform experiments and numerical simulations for pulses with 780 nm central wavelength, which is resonant with the D2 transition from the ground state of rubidium atoms, as well as for pulses with 810 nm central wavelength, some distance from resonances. We measure transmitted energy and transverse width of the pulse and use schlieren imaging to probe the plasma column in the vapor close to the end of the vapor source. We find, that resonant pulses are more confined in a transverse direction by the interaction than off-resonant pulses are and that the plasma channels they create are more sharply bounded. Off-resonant pulses leave a wider layer of partially ionized atoms and thus lose more energy per unit propagation distance. Using experimental data, we estimate the energy required to generate a 20-meter-long plasma column and conclude that resonant pulses are much more suitable for creating a long, homogeneous plasma.

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