Experimental study of wakefields driven by a self-modulating proton bunch in plasma

Experimental study of wakefields driven by a self-modulating proton bunch in plasma

We study experimentally the longitudinal and transverse wakefields driven by a highly relativistic proton bunch during self-modulation in plasma. We show that the wakefields’ growth and amplitude increase with increasing seed amplitude as well as with the proton bunch charge in the plasma. We study...

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Chi tiết về thư mục
Những tác giả chính: Turner, M, Muggli, P, Adli, E, Agnello, R, Aladi, M, Andrebe, Y, Apsimon, O, Apsimon, R, Bachmann, A-M, Baistrukov, MA, Batsch, F, Bergamaschi, M, Blanchard, P, Burrows, PN, Buttenschoen, B, Caldwell, A, Chappell, J, Chevallay, E, Chung, M, Cooke, DA, Damerau, H, Davut, C, Demeter, G, Deubner, LH, Dexter, A, Djotyan, GP, Doebert, S, Farmer, J, Fasoli, A, Fedosseev, VN, Fiorito, R, Fonseca, RA, Friebel, F, Furno, I, Garolfi, L, Gessner, S, Goddard, B, Gorgisyan, I, Gorn, AA, Granados, E, Granetzny, M, Grulke, O, Gschwendtner, E, Hafych, V, Hartin, A, Helm, A, Henderson, JR, Howling, A, Huether, M, Jacquier, R
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: American Physical Society 2020
Miêu tả
Tóm tắt:We study experimentally the longitudinal and transverse wakefields driven by a highly relativistic proton bunch during self-modulation in plasma. We show that the wakefields’ growth and amplitude increase with increasing seed amplitude as well as with the proton bunch charge in the plasma. We study transverse wakefields using the maximum radius of the proton bunch distribution measured on a screen downstream from the plasma. We study longitudinal wakefields by externally injecting electrons and measuring their final energy. Measurements agree with trends predicted by theory and numerical simulations and validate our understanding of the development of self-modulation. Experiments were performed in the context of the Advanced Wakefield Experiment (AWAKE).

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