Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Parametric study of high-energy ring-shaped electron beams from a laser wakefield accelerator
AU - Maitrallain, A
AU - Brunetti, E
AU - Streeter, M J V
AU - Kettle, B
AU - Spesyvtsev, R
AU - Vieux, G
AU - Shahzad, M
AU - Ersfeld, B
AU - Yoffe, S R
AU - Kornaszewski, A
AU - Finlay, O
AU - Ma, Y
AU - Albert, F
AU - Bourgeois, N
AU - Dann, S J D
AU - Lemos, N
AU - Cipiccia, S
AU - Cole, J M
AU - González, I G
AU - Willingale, L
AU - Higginbotham, A
AU - Hussein, A E
AU - Šmid, M
AU - Falk, K
AU - Krushelnick, K
AU - Lopes, N C
AU - Gerstmayr, E
AU - Lumsdon, C
AU - Lundh, O
AU - Mangles, S P D
AU - Najmudin, Z
AU - Rajeev, P P
AU - Symes, D R
AU - Thomas, A G R
AU - Jaroszynski, D A
PY - 2022/2/3
Y1 - 2022/2/3
N2 - Abstract: Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on the production of low-energy-spread, ultra-relativistic electron ring beams in a two-stage gas cell. Ring-shaped beams with energies higher than 750 MeV are observed simultaneously with on axis, continuously injected electrons. Often multiple ring shaped beams with different energies are produced and parametric studies to control the generation and properties of these structures were conducted. Particle tracking and particle-in-cell simulations are used to determine properties of these beams and investigate how they are formed and trapped outside the bubble by the wake produced by on-axis injected electrons. These unusual femtosecond duration, high-charge, high-energy, ring electron beams may find use in beam driven plasma wakefield accelerators and radiation sources.
AB - Abstract: Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on the production of low-energy-spread, ultra-relativistic electron ring beams in a two-stage gas cell. Ring-shaped beams with energies higher than 750 MeV are observed simultaneously with on axis, continuously injected electrons. Often multiple ring shaped beams with different energies are produced and parametric studies to control the generation and properties of these structures were conducted. Particle tracking and particle-in-cell simulations are used to determine properties of these beams and investigate how they are formed and trapped outside the bubble by the wake produced by on-axis injected electrons. These unusual femtosecond duration, high-charge, high-energy, ring electron beams may find use in beam driven plasma wakefield accelerators and radiation sources.
KW - Paper
KW - laser–plasma wakefield accelerators
KW - parametric study
KW - annular electron beams
U2 - 10.1088/1367-2630/ac3efd
DO - 10.1088/1367-2630/ac3efd
M3 - Journal article
VL - 24
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
IS - 1
M1 - 013017
ER -