Journal Article

PUBDB-2021-01303

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Optimal Beam Loading in a Laser-Plasma Accelerator

Kirchen, M. (Corresponding author)CFEL*Extern* ; Jalas, S.CFEL*Extern* ; Messner, P.CFEL*Extern*DESY* ; Winkler, P. V.DESY* ; Eichner, T.CFEL*Extern* ; Huebner, L.DESY* ; Hülsenbusch, T.DESY* ; Jeppe, L.Extern* ; Parikh, T.DESY* ; Schnepp, M.CFEL*Extern* ; Maier, A.CFEL*Extern*DESY*

2021
APS College Park, Md.

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Please use a persistent id in citations: doi:10.1103/PhysRevLett.126.174801  doi:10.3204/PUBDB-2021-01303

Abstract: Applications of laser-plasma accelerators demand low energy spread beams and high-efficiency operation. Achieving both requires flattening the accelerating fields by controlled beam loading of the plasma wave. Here, we optimize the generation of an electron bunch via localized ionization injection, such that the combination of injected current profile and averaged acceleration dynamics results in optimal beam loading conditions. This enables the reproducible production of 1.2% rms energy spread bunches with 282 MeV and 44 pC at an estimated energy-transfer efficiency of ∼19%. We correlate shot-to-shot variations to reveal the phase space dynamics and train a neural network that predicts the beam quality as a function of the drive laser.

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Contributing Institute(s):

1. UNI/EXP (CFEL-LUX)
2. Plasma Accelerators (MPA)
3. Supraleitende Beschleuniger Technologie (MSL)
4. Technol. zukünft. Teilchenph. Experim. (FTX)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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