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Analysis of proton bunch parameters in the AWAKE experiment

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Resumo:A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages of the AWAKE Run 1 data-taking period. The transverse structure of the bunch is observed at multiple positions along the beamline using scintillating or optical transition radiation screens. The parameters of a model that describes the bunch transverse dimensions and divergence are fitted to represent the observed data using Bayesian inference. The analysis is tested on simulated data and then applied to the experimental data.
Autores principais:Hafych, V.
Outros Autores:Caldwell, A.; Agnello, R.; Ahdida, C. C.; Aladi, M.; Amoedo Goncalves, M. C.; Andrebe, Y.; Apsimon, O.; Apsimon, R.; Bachmann, A.-M.; Baistrukov, M. A.; Batsch, F.; Bergamaschi, M.; Blanchard, P.; Burrows, P. N.; Buttenschön, B.; Chappell, J.; Chevallay, E.; Chung, M.; Cooke, D. A.; Damerau, H.; Davut, C.; Demeter, G.; Dexter, A.; Doebert, S.; Farmer, J.; Fasoli, A.; Fedosseev, V. N.; Fiorito, R.; Fonseca, R. A.; Furno, I.; Gessner, S.; Gorn, A. A.; Granados, E.; Granetzny, M.; Graubner, T.; Grulke, O.; Gschwendtner, E.; Guran, E. D.; Henderson, J. R.; Hüther, M.; Kedves, M. Á.; Khudyakov, V.; Kim S.-Y.; Kraus, F.; Krupa, M.; Lefevre, T.; Liang, L.; Lopes, N.; Lotov, K. V.; Mazzoni, S.; Godoy, D.M.; Moody J. T.; Moon, K.; Morales Guzmán, P.  I.; Moreira, M.; Nechaeva, T.; Nowak, E.; Pakuza, C.; Panuganti, H.; Pardons, A.; Perera, A.; Pucek, J.; Pukhov, A.; Ráczkevi, B.; Ramjiawan, R. L.; Rey, S.; Schmitz, O.; Senes, E.; Silva, L. O.; Stollberg, C.; Sublet, A.; Topaloudis, A.; Torrado, N.; Tuev, P. V.; Turner, M.; Velotti, F.; Verra, L.; Vieira, J.; Vincke, H.; Welsch, C. P.; Wendt, M.; Wing, M.; Wolfenden, J.; Woolley, B.; Xia, G.; Zepp, M.; Della Porta, G. Z.
Assunto:Analysis and statistical methods Beam-line instrumentation (beam position and profile monitors beam intensity monitors bunch length monitors) Pattern recognition Cluster finding calibration Fitting methods
Ano:2021
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:ISCTE
Idioma:inglês
Origem:Repositório ISCTE
Descrição
Resumo:A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages of the AWAKE Run 1 data-taking period. The transverse structure of the bunch is observed at multiple positions along the beamline using scintillating or optical transition radiation screens. The parameters of a model that describes the bunch transverse dimensions and divergence are fitted to represent the observed data using Bayesian inference. The analysis is tested on simulated data and then applied to the experimental data.