Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration

Physics

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

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Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration. / Willingale, L.; Thomas, A. G. R.; Maksimchuk, A. et al.
In: Physics of Plasmas, Vol. 20, No. 12, 123112, 12.2013.

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

Harvard

Willingale, L , Thomas, AGR, Maksimchuk, A, Morace, A, Bartal, T, Kim, J, Stephens, RB, Wei, MS, Beg, FN & Krushelnick, K 2013, 'Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration', Physics of Plasmas, vol. 20, no. 12, 123112. https://doi.org/10.1063/1.4853575

APA

Willingale, L., Thomas, A. G. R., Maksimchuk, A., Morace, A., Bartal, T., Kim, J., Stephens, R. B., Wei, M. S., Beg, F. N., & Krushelnick, K. (2013). Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration. Physics of Plasmas, 20(12), Article 123112. https://doi.org/10.1063/1.4853575

Vancouver

Willingale L , Thomas AGR, Maksimchuk A, Morace A, Bartal T, Kim J et al. Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration. Physics of Plasmas. 2013 Dec;20(12):123112. doi: 10.1063/1.4853575

Author

Willingale, L. ; Thomas, A. G. R. ; Maksimchuk, A. et al. / Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration. In: Physics of Plasmas. 2013 ; Vol. 20, No. 12.

Bibtex

@article{d7211bfe95c14e5bb3e20c69b634c471,

title = "Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration",

abstract = "Simultaneous experimental measurements of copper K-alpha imaging and the maximum target normal sheath acceleration proton energies from the rear target surface are compared for various target thicknesses. For the T-cubed laser (approximate to 4 J, 400 fs) at an intensity of approximate to 2 x 10(19) W cm(-2), the hot electron divergence is determined to be theta(HW HM) approximate to 22 degrees using a K-alpha imaging diagnostic. The maximum proton energies are measured to follow the expected reduction with increasing target thickness. Numerical modeling produces copper K-alpha trends for both signal level and electron beam divergence that are in good agreement with the experiment. A geometric model describing the electron beam divergence reproduces the maximum proton energy trends observed from the experiment and the fast electron density and the peak electric field observed in the numerical modeling. (C) 2013 AIP Publishing LLC.",

keywords = "SOLID TARGETS, BEAMS, ABSORPTION, IGNITION, DRIVEN, PLASMA, TRANSPORT, PULSES",

author = "L. Willingale and Thomas, {A. G. R.} and A. Maksimchuk and A. Morace and T. Bartal and J. Kim and Stephens, {R. B.} and Wei, {M. S.} and Beg, {F. N.} and K. Krushelnick",

year = "2013",

month = dec,

doi = "10.1063/1.4853575",

language = "English",

volume = "20",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics Inc.",

number = "12",

}

RIS

TY - JOUR

T1 - Investigation of relativistic intensity laser generated hot electron dynamics via copper K-alpha imaging and proton acceleration

AU - Willingale, L.

AU - Thomas, A. G. R.

AU - Maksimchuk, A.

AU - Morace, A.

AU - Bartal, T.

AU - Kim, J.

AU - Stephens, R. B.

AU - Wei, M. S.

AU - Beg, F. N.

AU - Krushelnick, K.

PY - 2013/12

Y1 - 2013/12

N2 - Simultaneous experimental measurements of copper K-alpha imaging and the maximum target normal sheath acceleration proton energies from the rear target surface are compared for various target thicknesses. For the T-cubed laser (approximate to 4 J, 400 fs) at an intensity of approximate to 2 x 10(19) W cm(-2), the hot electron divergence is determined to be theta(HW HM) approximate to 22 degrees using a K-alpha imaging diagnostic. The maximum proton energies are measured to follow the expected reduction with increasing target thickness. Numerical modeling produces copper K-alpha trends for both signal level and electron beam divergence that are in good agreement with the experiment. A geometric model describing the electron beam divergence reproduces the maximum proton energy trends observed from the experiment and the fast electron density and the peak electric field observed in the numerical modeling. (C) 2013 AIP Publishing LLC.

AB - Simultaneous experimental measurements of copper K-alpha imaging and the maximum target normal sheath acceleration proton energies from the rear target surface are compared for various target thicknesses. For the T-cubed laser (approximate to 4 J, 400 fs) at an intensity of approximate to 2 x 10(19) W cm(-2), the hot electron divergence is determined to be theta(HW HM) approximate to 22 degrees using a K-alpha imaging diagnostic. The maximum proton energies are measured to follow the expected reduction with increasing target thickness. Numerical modeling produces copper K-alpha trends for both signal level and electron beam divergence that are in good agreement with the experiment. A geometric model describing the electron beam divergence reproduces the maximum proton energy trends observed from the experiment and the fast electron density and the peak electric field observed in the numerical modeling. (C) 2013 AIP Publishing LLC.

KW - SOLID TARGETS

KW - BEAMS

KW - ABSORPTION

KW - IGNITION

KW - DRIVEN

KW - PLASMA

KW - TRANSPORT

KW - PULSES

U2 - 10.1063/1.4853575

DO - 10.1063/1.4853575

M3 - Journal article

VL - 20

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 12

M1 - 123112

ER -

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