Artigo em revista científica
Proton beam defocusing in AWAKE: comparison of simulations and measurements
Alexander Gorn (Gorn, A.); Marlene Turner (Turner, M.); Erik Adli (Adli, E); R. Agnello (Agnello, R.); M. Aladi (Aladi, M. ); Y. Andrebe (Andrebe, Y. ); O Apsimon (Apsimon, O.); Robert Apsimon (Apsimon, R.); Anna-Maria Bachmann (Bachmann, A. -M.); M. A. Baistrukov (Baistrukov, M. A. ); Fabian Batsch (Batsch, F.); M. Bergamaschi (Bergamaschi, M. ); P. Blanchard (Blanchard, P. ); Philip N Burrows (Burrows, P. N.); Birger Buttenschön (Buttenschön, B.); Allen Caldwell (Caldwell, A.); J. Chappell (Chappell, J.); Eric Chevallay (Chevallay, E.); M Chung (Chung, M.); D. A. Cooke (Cooke, D. A. ); Heiko Damerau (Damerau, H.); C. Davut (Davut, C. ); G. Demeter (Demeter, G.); L. H. Deubner (Deubner, L. H. ); A Dexter (Dexter, A.); G. P. Djotyan (Djotyan, G. P. ); Steffen Doebert (Doebert, S.); John P Farmer (Farmer, J.); A. Fasoli (Fasoli, A.); V. N. Fedosseev (Fedosseev, V. N.); Ralph Fiorito (Fiorito, R.); Ricardo Fonseca (Fonseca, R. A.); Florence Friebel (Friebel, F.); I. Furno (Furno, I. ); L. Garolfi (Garolfi, L. ); S. Gessner (Gessner, S.); B Goddard (Goddard, B.); I Gorgisyan (Gorgisyan, I ); E. Granados (Granados, E. ); M. Granetzny (Granetzny, M. ); O Grulke (Grulke, O.); E. Gschwendtner (Gschwendtner, E..); V. Hafych (Hafych, V. ); A. Hartin (Hartin, A. ); Anton Helm (Helm, A.); J. R. Henderson (Henderson, J. R. ); A. Howling (Howling, A. ); M Hüther (Hüther, M.); R. Jacquier (Jacquier, R. ); I. Yu. Kargapolov (Kargapolov, I. Y.); M. Á. Kedves (Kedves, M. Á. ); F. Keeble (Keeble, F.); M. D. Kelisani (Kelisani, M. D. ); S-Y Kim (Kim, S. -Y ); F. Krausz (Krausz, F.); M. Krupa (Krupa, M. ); T Lefevre (Lefevre, T.); L. Liang (Liang, L.); Shengli Liu (Liu, S.); Nelson Carreira Lopes (Lopes, N. C.); K. V. Lotov (Lotov, K.); Mikhail Martyanov (Martyanov, M.); Stefano Mazzoni (Mazzoni, S.); D Medina Godoy (Medina Godoy, D.); V. A. Minakov (Minakov, V. A.); Joshua Timothy Moody (Moody, J. T.); P. I. Morales Guzmán (Morales Guzmán, P. I.); Mariana Moreira (Moreira, M.); T Nechaeva (Nechaeva, T.); H. Panuganti (Panuganti, H. ); A Pardons (Pardons, A.); F. Peña Asmus (Peña Asmus, F.); A. Perera (Perera, A. ); A. Petrenko (Petrenko, A.); J. Pucek (Pucek, J. ); Pukhov A (Pukhov, A.); B. Ráczkevi (Ráczkevi, B. ); R. L. Ramjiawan (Ramjiawan, R. L. ); S. Rey (Rey, S.); Hartmut Ruhl (Ruhl, H.); H. Saberi (Saberi, H. ); O. Schmitz (Schmitz, O.); E. Senes (Senes, E.); P. Sherwood (Sherwood, P.); L. O. Silva (Silva, L. O. ); R. I. Spitsyn (Spitsyn, R. I.); L. Verra (Verra, L. ); V. A. Verzilov (Verzilov, V. A.); Jorge Vieira (Vieira, J.); P. V. Tuev (Tuev, P. V.); F. Velotti (Velotti, F.); Carsten P. Welsch (Welsch, C. P.); B. Williamson (Williamson, B.); M. Wing (Wing, M.); J. Wolfenden (Wolfenden, J.); B. Woolley (Woolley, B.); Guoxing Xia (Xia, G.); M. Zepp (Zepp, M.); G. Zevi Della Porta (Della Porta, G. Z.); The AWAKE collaboration (The AWAKE collaboration); et al.
Título Revista
Plasma Physics and Controlled Fusion
Ano
2020
Língua
Inglês
País
Reino Unido
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Abstract/Resumo
In 2017, AWAKE demonstrated the seeded self-modulation (SSM) of a 400 GeV proton beam from the Super Proton Synchrotron at CERN. The angular distribution of the protons deflected due to SSM is a quantitative measure of the process, which agrees with simulations by the two-dimensional (axisymmetric) particle-in-cell code LCODE to about 5%. The agreement is achieved in beam population scans at two selected plasma densities and in the scan of longitudinal plasma density gradient. The agreement is reached only in the case of a wide enough simulation box (several plasma wavelengths) that is closer to experimental conditions, but requires more computational power. Therefore, particle-in-cell codes can be used to interpret the SSM physics underlying the experimental data.
Agradecimentos/Acknowledgements
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Registos de financiamentos
Referência de financiamento Entidade Financiadora
UID/FIS/50010/2013 Fundação para a Ciência e a Tecnologia
SFRH/IF/01635/2015 Fundação para a Ciência e a Tecnologia