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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/37003
Record Status
Checked
Record Id
37003
Title
Fast-electron transport and heating of solid targets in high-intensity laser interactions measured by K alpha fluorescence
Contributors
E Martinolli
,
M Koenig
,
SD Baton
,
JJ Santos
,
F Amiranoff
,
D Batani
,
E Perelli-Cippo
,
F Scianitti
,
L Gremillet
,
R Melizzi
,
A Decoster
,
C Rousseaux
,
TA Hall
,
MH Key
,
R Snavely
,
AJ MacKinnon
,
RR Freeman
,
JA King
,
R Stephens
,
D Neely (CCLRC Rutheford Appleton Lab.)
,
RJ Clarke (CCLRC Rutherford Appleton Lab.)
Abstract
We present experimental results on fast-electron energy deposition into solid targets in ultrahigh intensity laser-matter interaction. X-ray K alpha emission spectroscopy with absolute photon counting served to diagnose fast-electron propagation in multilayered targets. Target heating was measured from ionization-shifted K alpha emission. Data show a 200 mu m fast-electron range in solid Al. The relative intensities of spectrally shifted Al K alpha lines imply a mean temperature of a few tens of eV up to a 100 mu m depth. Experimental results suggest refluxing of the electron beam at target rear side. They were compared with the predictions of both a collisional Monte Carlo and a collisional-electromagnetic, particle-fluid transport code. The validity of the code modeling of heating in such highly transient conditions is discussed.
Organisation
CCLRC
,
CLF
,
CLF-HPL
,
CLF-VULCAN
Keywords
CLF 2006-2007
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev E
73, no. 4 (2006): 046402.
doi:10.1103/PhysRevE.73.046402
2006
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