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Proton beam self-modulation seeded by electron bunch in plasma with density ramp. / Lotov, K. V.; Minakov, V. A.
в: Plasma Physics and Controlled Fusion, Том 62, № 11, 115025, 11.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Proton beam self-modulation seeded by electron bunch in plasma with density ramp
AU - Lotov, K. V.
AU - Minakov, V. A.
PY - 2020/11
Y1 - 2020/11
N2 - Seeded self-modulation in a plasma can transform a long proton beam into a train of micro-bunches that can excite a strong wakefield over long distances, but this needs the plasma to have a certain density profile with a short-scale ramp up. For the parameters of the AWAKE experiment at CERN we numerically study which density profiles are optimal if the self-modulation is seeded by a short electron bunch. With the optimal profiles, it is possible to 'freeze' the wakefield at approximately half the wavebreaking level. High-energy electron bunches (160 MeV) are less efficient seeds than low-energy ones (18 MeV), because the wakefield of the former lasts longer than necessary for efficient seeding.
AB - Seeded self-modulation in a plasma can transform a long proton beam into a train of micro-bunches that can excite a strong wakefield over long distances, but this needs the plasma to have a certain density profile with a short-scale ramp up. For the parameters of the AWAKE experiment at CERN we numerically study which density profiles are optimal if the self-modulation is seeded by a short electron bunch. With the optimal profiles, it is possible to 'freeze' the wakefield at approximately half the wavebreaking level. High-energy electron bunches (160 MeV) are less efficient seeds than low-energy ones (18 MeV), because the wakefield of the former lasts longer than necessary for efficient seeding.
KW - Plasma wakefield acceleration
KW - Proton beam
KW - Seeded self-modulation
KW - AWAKE EXPERIMENT
KW - plasma wakefield acceleration
KW - proton beam
KW - seeded self-modulation
UR - http://www.scopus.com/inward/record.url?scp=85094867837&partnerID=8YFLogxK
U2 - 10.1088/1361-6587/abba42
DO - 10.1088/1361-6587/abba42
M3 - Article
AN - SCOPUS:85094867837
VL - 62
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
SN - 0741-3335
IS - 11
M1 - 115025
ER -
ID: 25863119