| Literature DB >> 30822039 |
M Turner1, E Adli2, A Ahuja1, O Apsimon3,4, R Apsimon4,5, A-M Bachmann1,6,7, M Barros Marin1, D Barrientos1, F Batsch1,6,7, J Batkiewicz1, J Bauche1, V K Berglyd Olsen2, M Bernardini1, B Biskup1, A Boccardi1, T Bogey1, T Bohl1, C Bracco1, F Braunmüller6, S Burger1, G Burt4,5, S Bustamante1, B Buttenschön8, A Caldwell6, M Cascella9, J Chappell9, E Chevallay1, M Chung10, D Cooke9, H Damerau1, L Deacon9, L H Deubner11, A Dexter4,5, S Doebert1, J Farmer12, V N Fedosseev1, G Fior6, R Fiorito4,13, R A Fonseca14, F Friebel1, L Garolfi1, S Gessner1, I Gorgisyan1, A A Gorn15,16, E Granados1, O Grulke8,17, E Gschwendtner1, A Guerrero1, J Hansen1, A Helm18, J R Henderson4,5, C Hessler1, W Hofle1, M Hüther6, M Ibison4,13, L Jensen1, S Jolly9, F Keeble9, S-Y Kim10, F Kraus11, T Lefevre1, G LeGodec1, Y Li3,4, S Liu19, N Lopes18, K V Lotov15,16, L Maricalva Brun1, M Martyanov6, S Mazzoni1, D Medina Godoy1, V A Minakov15,16, J Mitchell4,5, J C Molendijk1, R Mompo1, J T Moody6, M Moreira1,18, P Muggli1,6, E Öz6, E Ozturk1, C Mutin1, C Pasquino1, A Pardons1, F Peña Asmus6,7, K Pepitone1, A Perera4,13, A Petrenko1,15, S Pitman4,5, G Plyushchev1,20, A Pukhov12, S Rey1, K Rieger6, H Ruhl21, J S Schmidt1, I A Shalimova16,22, E Shaposhnikova1, P Sherwood9, L O Silva18, L Soby1, A P Sosedkin15,16, R Speroni1, R I Spitsyn15,16, P V Tuev15,16, F Velotti1, L Verra1,23, V A Verzilov19, J Vieira18, H Vincke1, C P Welsch4,13, B Williamson3,4, M Wing9, B Woolley1, G Xia3,4.
Abstract
We measure the effects of transverse wakefields driven by a relativistic proton bunch in plasma with densities of 2.1×10^{14} and 7.7×10^{14} electrons/cm^{3}. We show that these wakefields periodically defocus the proton bunch itself, consistently with the development of the seeded self-modulation process. We show that the defocusing increases both along the bunch and along the plasma by using time resolved and time-integrated measurements of the proton bunch transverse distribution. We evaluate the transverse wakefield amplitudes and show that they exceed their seed value (<15 MV/m) and reach over 300 MV/m. All these results confirm the development of the seeded self-modulation process, a necessary condition for external injection of low energy and acceleration of electrons to multi-GeV energy levels.Year: 2019 PMID： 30822039 DOI： 10.1103/PhysRevLett.122.054801
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161