Experimental observations of transport of picosecond laser generated electrons in a nail-like target

J. Pasley; M. Wei; E. Shipton; S. Chen; T. Ma; F. N. Beg; N. Alexander; R. Stephens; A. G. MacPhee; D. Hey; S. Le Pape; P. Patel; A. MacKinnon; M. Key; D. Offermann; A. Link; E. Chowdhury; L. Van-Woerkom; R. R. Freeman

doi:10.1063/1.2815790

Experimental observations of transport of picosecond laser generated electrons in a nail-like target

J. Pasley
, M. Wei
, E. Shipton
, S. Chen
, T. Ma
, F. N. Beg
, N. Alexander
, R. Stephens
, A. G. MacPhee
, D. Hey
, S. Le Pape
, P. Patel
, A. MacKinnon
, M. Key
, D. Offermann
, A. Link
, E. Chowdhury
, L. Van-Woerkom
, R. R. Freeman

University of California, San Diego
General Atomics
Lawrence Livermore National Laboratory
University of California, Davis
The Ohio State University

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

Abstract

The transport of relativistic electrons, generated by the interaction of a high intensity (2× 1020 W cm2) laser, has been studied in a nail-like target comprised of a 20 μm diameter solid copper wire, coated with ∼2 μm of titanium, with an 80 μm diameter hemispherical termination. A ∼500 fs, ∼200 J pulse of 1.053 μm laser light produced by the Titan Laser at Lawrence Livermore National Laboratory was focused to a ∼20 μm diameter spot centered on the flat face of the hemisphere. Kα fluorescence from the Cu and Ti regions was imaged together with extreme ultraviolet (XUV) emission at 68 and 256 eV. Results showed a quasiexponential decline in Kα emission along the wire over a distance of a few hundred microns from the laser focus, consistent with bulk Ohmic inhibition of the relativistic electron transport. Weaker Kα and XUV emission on a longer scale length showed limb brightening suggesting a transition to enhanced transport at the surface of the wire.

Original language	English
Article number	120701
Journal	Physics of Plasmas
Volume	14
Issue number	12
DOIs	https://doi.org/10.1063/1.2815790
Publication status	Published - 1 Dec 2007
Externally published	Yes

Access to Document

10.1063/1.2815790

Cite this

Pasley, J., Wei, M., Shipton, E., Chen, S., Ma, T., Beg, F. N., Alexander, N., Stephens, R., MacPhee, A. G., Hey, D., Le Pape, S., Patel, P., MacKinnon, A., Key, M., Offermann, D., Link, A., Chowdhury, E., Van-Woerkom, L., & Freeman, R. R. (2007). Experimental observations of transport of picosecond laser generated electrons in a nail-like target. Physics of Plasmas, 14(12), Article 120701. https://doi.org/10.1063/1.2815790

@article{cafe45608acf40a09623f173661fb5a1,

title = "Experimental observations of transport of picosecond laser generated electrons in a nail-like target",

abstract = "The transport of relativistic electrons, generated by the interaction of a high intensity (2× 1020 W cm2) laser, has been studied in a nail-like target comprised of a 20 μm diameter solid copper wire, coated with ∼2 μm of titanium, with an 80 μm diameter hemispherical termination. A ∼500 fs, ∼200 J pulse of 1.053 μm laser light produced by the Titan Laser at Lawrence Livermore National Laboratory was focused to a ∼20 μm diameter spot centered on the flat face of the hemisphere. Kα fluorescence from the Cu and Ti regions was imaged together with extreme ultraviolet (XUV) emission at 68 and 256 eV. Results showed a quasiexponential decline in Kα emission along the wire over a distance of a few hundred microns from the laser focus, consistent with bulk Ohmic inhibition of the relativistic electron transport. Weaker Kα and XUV emission on a longer scale length showed limb brightening suggesting a transition to enhanced transport at the surface of the wire.",

author = "J. Pasley and M. Wei and E. Shipton and S. Chen and T. Ma and Beg, \{F. N.\} and N. Alexander and R. Stephens and MacPhee, \{A. G.\} and D. Hey and \{Le Pape\}, S. and P. Patel and A. MacKinnon and M. Key and D. Offermann and A. Link and E. Chowdhury and L. Van-Woerkom and Freeman, \{R. R.\}",

year = "2007",

month = dec,

day = "1",

doi = "10.1063/1.2815790",

language = "English",

volume = "14",

journal = "Physics of Plasmas",

issn = "1070-664X",

number = "12",

}

Pasley, J, Wei, M, Shipton, E, Chen, S, Ma, T, Beg, FN, Alexander, N, Stephens, R, MacPhee, AG, Hey, D, Le Pape, S, Patel, P, MacKinnon, A, Key, M, Offermann, D, Link, A, Chowdhury, E, Van-Woerkom, L & Freeman, RR 2007, 'Experimental observations of transport of picosecond laser generated electrons in a nail-like target', Physics of Plasmas, vol. 14, no. 12, 120701. https://doi.org/10.1063/1.2815790

TY - JOUR

T1 - Experimental observations of transport of picosecond laser generated electrons in a nail-like target

AU - Pasley, J.

AU - Wei, M.

AU - Shipton, E.

AU - Chen, S.

AU - Ma, T.

AU - Beg, F. N.

AU - Alexander, N.

AU - Stephens, R.

AU - MacPhee, A. G.

AU - Hey, D.

AU - Le Pape, S.

AU - Patel, P.

AU - MacKinnon, A.

AU - Key, M.

AU - Offermann, D.

AU - Link, A.

AU - Chowdhury, E.

AU - Van-Woerkom, L.

AU - Freeman, R. R.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - The transport of relativistic electrons, generated by the interaction of a high intensity (2× 1020 W cm2) laser, has been studied in a nail-like target comprised of a 20 μm diameter solid copper wire, coated with ∼2 μm of titanium, with an 80 μm diameter hemispherical termination. A ∼500 fs, ∼200 J pulse of 1.053 μm laser light produced by the Titan Laser at Lawrence Livermore National Laboratory was focused to a ∼20 μm diameter spot centered on the flat face of the hemisphere. Kα fluorescence from the Cu and Ti regions was imaged together with extreme ultraviolet (XUV) emission at 68 and 256 eV. Results showed a quasiexponential decline in Kα emission along the wire over a distance of a few hundred microns from the laser focus, consistent with bulk Ohmic inhibition of the relativistic electron transport. Weaker Kα and XUV emission on a longer scale length showed limb brightening suggesting a transition to enhanced transport at the surface of the wire.

AB - The transport of relativistic electrons, generated by the interaction of a high intensity (2× 1020 W cm2) laser, has been studied in a nail-like target comprised of a 20 μm diameter solid copper wire, coated with ∼2 μm of titanium, with an 80 μm diameter hemispherical termination. A ∼500 fs, ∼200 J pulse of 1.053 μm laser light produced by the Titan Laser at Lawrence Livermore National Laboratory was focused to a ∼20 μm diameter spot centered on the flat face of the hemisphere. Kα fluorescence from the Cu and Ti regions was imaged together with extreme ultraviolet (XUV) emission at 68 and 256 eV. Results showed a quasiexponential decline in Kα emission along the wire over a distance of a few hundred microns from the laser focus, consistent with bulk Ohmic inhibition of the relativistic electron transport. Weaker Kα and XUV emission on a longer scale length showed limb brightening suggesting a transition to enhanced transport at the surface of the wire.

UR - https://www.scopus.com/pages/publications/37549039763

U2 - 10.1063/1.2815790

DO - 10.1063/1.2815790

M3 - Article

AN - SCOPUS:37549039763

SN - 1070-664X

VL - 14

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 12

M1 - 120701

ER -

Experimental observations of transport of picosecond laser generated electrons in a nail-like target

Abstract

Access to Document

Other files and links

Fingerprint

Cite this