Proton beam self-modulation seeded by electron bunch in plasma with density ramp

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Proton beam self-modulation seeded by electron bunch in plasma with density ramp. / Lotov, K. V.; Minakov, V. A.

In: Plasma Physics and Controlled Fusion, Vol. 62, No. 11, 115025, 11.2020.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4bd6df635dd84ec39e5f264c80c4a68e,

title = "Proton beam self-modulation seeded by electron bunch in plasma with density ramp",

abstract = "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.",

keywords = "Plasma wakefield acceleration, Proton beam, Seeded self-modulation, AWAKE EXPERIMENT, plasma wakefield acceleration, proton beam, seeded self-modulation",

author = "Lotov, {K. V.} and Minakov, {V. A.}",

year = "2020",

month = nov,

doi = "10.1088/1361-6587/abba42",

language = "English",

volume = "62",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing Ltd.",

number = "11",

}

RIS

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