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Measurements of electron beam ring structures from laser wakefield accelerators

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Measurements of electron beam ring structures from laser wakefield accelerators. / Behm, K.; Hussein, A.; Zhao, T.Z. et al.
In: Plasma Physics and Controlled Fusion, Vol. 61, No. 6, 065012, 09.05.2019.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Behm, K, Hussein, A, Zhao, TZ, Dann, S, Hou, BX, Yanovsky, V, Nees, J, Maksimchuk, A, Schumaker, W, Thomas, AGR & Krushelnick, K 2019, 'Measurements of electron beam ring structures from laser wakefield accelerators', Plasma Physics and Controlled Fusion, vol. 61, no. 6, 065012. https://doi.org/10.1088/1361-6587/ab0622

APA

Behm, K., Hussein, A., Zhao, T. Z., Dann, S., Hou, B. X., Yanovsky, V., Nees, J., Maksimchuk, A., Schumaker, W., Thomas, A. G. R., & Krushelnick, K. (2019). Measurements of electron beam ring structures from laser wakefield accelerators. Plasma Physics and Controlled Fusion, 61(6), Article 065012. https://doi.org/10.1088/1361-6587/ab0622

Vancouver

Behm K, Hussein A, Zhao TZ, Dann S, Hou BX, Yanovsky V et al. Measurements of electron beam ring structures from laser wakefield accelerators. Plasma Physics and Controlled Fusion. 2019 May 9;61(6):065012. Epub 2019 Feb 11. doi: 10.1088/1361-6587/ab0622

Author

Behm, K. ; Hussein, A. ; Zhao, T.Z. et al. / Measurements of electron beam ring structures from laser wakefield accelerators. In: Plasma Physics and Controlled Fusion. 2019 ; Vol. 61, No. 6.

Bibtex

@article{d9afab158b1f4ba4b902bb4d2db2cda5,
title = "Measurements of electron beam ring structures from laser wakefield accelerators",
abstract = "Laser-plasma interaction experiments using a 70 TW short-pulse laser were conducted to investigate the properties of electron beams produced from laser wakefield acceleration. In addition to narrow divergence electron beams in excess of 200 MeV, lower energy components of the electron beam were observed to have an annular emission pattern with much larger divergence. This ring-shaped component of the beam is up to several MeV in energy and gives rise to a corresponding increase in the divergence of bremsstrahlung x-rays while producing more background radiation. Scaling measurements of the emission angle of the beam with respect to plasma density were also made. From 3D numerical simulations of the interaction, it is shown that this phenomenon results from energetic electrons in the laser-driven wakefield which are not trapped by the plasma wave, but which can still obtain some longitudinal momentum from the interaction.",
keywords = "accelerators, lasers, particle sources",
author = "K. Behm and A. Hussein and T.Z. Zhao and S. Dann and B.X. Hou and V. Yanovsky and J. Nees and A. Maksimchuk and W. Schumaker and A.G.R. Thomas and K. Krushelnick",
year = "2019",
month = may,
day = "9",
doi = "10.1088/1361-6587/ab0622",
language = "English",
volume = "61",
journal = "Plasma Physics and Controlled Fusion",
issn = "0741-3335",
publisher = "IOP Publishing Ltd",
number = "6",

}

RIS

TY - JOUR

T1 - Measurements of electron beam ring structures from laser wakefield accelerators

AU - Behm, K.

AU - Hussein, A.

AU - Zhao, T.Z.

AU - Dann, S.

AU - Hou, B.X.

AU - Yanovsky, V.

AU - Nees, J.

AU - Maksimchuk, A.

AU - Schumaker, W.

AU - Thomas, A.G.R.

AU - Krushelnick, K.

PY - 2019/5/9

Y1 - 2019/5/9

N2 - Laser-plasma interaction experiments using a 70 TW short-pulse laser were conducted to investigate the properties of electron beams produced from laser wakefield acceleration. In addition to narrow divergence electron beams in excess of 200 MeV, lower energy components of the electron beam were observed to have an annular emission pattern with much larger divergence. This ring-shaped component of the beam is up to several MeV in energy and gives rise to a corresponding increase in the divergence of bremsstrahlung x-rays while producing more background radiation. Scaling measurements of the emission angle of the beam with respect to plasma density were also made. From 3D numerical simulations of the interaction, it is shown that this phenomenon results from energetic electrons in the laser-driven wakefield which are not trapped by the plasma wave, but which can still obtain some longitudinal momentum from the interaction.

AB - Laser-plasma interaction experiments using a 70 TW short-pulse laser were conducted to investigate the properties of electron beams produced from laser wakefield acceleration. In addition to narrow divergence electron beams in excess of 200 MeV, lower energy components of the electron beam were observed to have an annular emission pattern with much larger divergence. This ring-shaped component of the beam is up to several MeV in energy and gives rise to a corresponding increase in the divergence of bremsstrahlung x-rays while producing more background radiation. Scaling measurements of the emission angle of the beam with respect to plasma density were also made. From 3D numerical simulations of the interaction, it is shown that this phenomenon results from energetic electrons in the laser-driven wakefield which are not trapped by the plasma wave, but which can still obtain some longitudinal momentum from the interaction.

KW - accelerators

KW - lasers

KW - particle sources

U2 - 10.1088/1361-6587/ab0622

DO - 10.1088/1361-6587/ab0622

M3 - Journal article

VL - 61

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 6

M1 - 065012

ER -