Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch

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ID: 270936
2021
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Abstract
Plasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection of witness electrons that sample the fields. In simulation, resonant excitation of the wakefield causes plasma electron trajectory crossing, resulting in the development of a potential outside the plasma boundary as electrons are transversely ejected. Trends consistent with the presence of this potential are experimentally measured and their dependence on wakefield amplitude are studied via seed laser timing scans and electron injection delay scans.
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Authors J. Chappell,E. Adli,R. Agnello,M. Aladi,Y. Andrebe,O. Apsimon,A.-M. Bachmann,M. A. Baistrukov,F. Batsch,M. Bergamaschi,P. Blanchard,P. N. Burrows,B. Buttenschön,A. Caldwell,E. Chevallay,M. Chung,D. A. Cooke,H. Damerau,C. Davut,G. Demeter,L. H. Deubner,A. Dexter,G. P. Djotyan,S. Doebert,J. Farmer,A. Fasoli,V. N. Fedosseev,R. Fiorito,R. A. Fonseca,F. Friebel,I. Furno,L. Garolfi,S. Gessner,B. Goddard,I. Gorgisyan,A. A. Gorn,E. Granados,M. Granetzny,O. Grulke,E. Gschwendtner,V. Hafych,A. Hartin,A. Helm,J. R. Henderson,A. Howling,M. Hüther,R. Jacquier,S. Jolly,I. Yu. Kargapolov,M. Á. Kedves,F. Keeble,M. D. Kelisani,S.-Y. Kim,F. Kraus,M. Krupa,T. Lefevre,Y. Li,L. Liang,S. Liu,N. Lopes,K. V. Lotov,M. Martyanov,S. Mazzoni,D. Medina Godoy,V. A. Minakov,J. T. Moody,P. I. Morales Guzmán,M. Moreira,H. Panuganti,A. Pardons,F. Peña Asmus,A. Perera,A. Petrenko,J. Pucek,A. Pukhov,B. Ráczkevi,R. L. Ramjiawan,S. Rey,H. Ruhl,H. Saberi,O. Schmitz,E. Senes,P. Sherwood,L. O. Silva,R. I. Spitsyn,P. V. Tuev,F. Velotti,L. Verra,V. A. Verzilov,J. Vieira,C. P. Welsch,B. Williamson,M. Wing,J. Wolfenden,B. Woolley,G. Xia,M. Zepp,G. Zevi Della Porta,AWAKE Collaboration;J. Chappell;E. Adli;R. Agnello;M. Aladi;Y. Andrebe;O. Apsimon;A.-M. Bachmann;M. A. Baistrukov;F. Batsch;M. Bergamaschi;P. Blanchard;P. N. Burrows;B. Buttenschön;A. Caldwell;E. Chevallay;M. Chung;D. A. Cooke;H. Damerau;C. Davut;G. Demeter;L. H. Deubner;A. Dexter;G. P. Djotyan;S. Doebert;J. Farmer;A. Fasoli;V. N. Fedosseev;R. Fiorito;R. A. Fonseca;F. Friebel;I. Furno;L. Garolfi;S. Gessner;B. Goddard;I. Gorgisyan;A. A. Gorn;E. Granados;M. Granetzny;O. Grulke;E. Gschwendtner;V. Hafych;A. Hartin;A. Helm;J. R. Henderson;A. Howling;M. Hüther;R. Jacquier;S. Jolly;I. Yu. Kargapolov;M. Á. Kedves;F. Keeble;M. D. Kelisani;S.-Y. Kim;F. Kraus;M. Krupa;T. Lefevre;Y. Li;L. Liang;S. Liu;N. Lopes;K. V. Lotov;M. Martyanov;S. Mazzoni;D. Medina Godoy;V. A. Minakov;J. T. Moody;P. I. Morales Guzmán;M. Moreira;H. Panuganti;A. Pardons;F. Peña Asmus;A. Perera;A. Petrenko;J. Pucek;A. Pukhov;B. Ráczkevi;R. L. Ramjiawan;S. Rey;H. Ruhl;H. Saberi;O. Schmitz;E. Senes;P. Sherwood;L. O. Silva;R. I. Spitsyn;P. V. Tuev;F. Velotti;L. Verra;V. A. Verzilov;J. Vieira;C. P. Welsch;B. Williamson;M. Wing;J. Wolfenden;B. Woolley;G. Xia;M. Zepp;G. Zevi Della Porta;AWAKE Collaboration;
Journal physical review accelerators and beams
Year 2021
DOI
10.1103/physrevaccelbeams.24.011301
URL
https://sciprofiles.com/publication/view/9787eb92e61cd1b574f1bc058d98c2ae
Keywords
electron experimentally amplitude timescales bunch plasma wakefield modulated proton

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