| Issue |
Europhys. Lett.
Volume 72, Number 2, October 2005
|
|
|---|---|---|
| Page(s) | 242 - 248 | |
| Section | Physics of gases, plasmas and electric discharges | |
| DOI | https://doi.org/10.1209/epl/i2005-10237-5 | |
| Published online | 21 September 2005 | |
Enhanced 
-
emission from “smoked” 
targets irradiated with 
, 
laser pulses
1
School of Mathematics and Physics, Queen's University of Belfast University Road, Belfast, BT7 1NN, UK
2
Central Laser Facility, CLRC Rutherford Appleton Laboratory Chilton, Didcot, Oxon, OX11 0QX, UK
3
Department of Physics, University of York - Heslington, York YO10 5DD, UK
Corresponding author: F.Khattak@qub.ac.uk
Received:
1
July
2005
Accepted:
31
August
2005
We present a study of -like 1s2-1s2p line emission from
solid and low-density targets under 
laser pulse irradiation with a frequency doubled :Sapphire
laser. By varying the beam spot, the intensity on target was varied
from 
to 
. At best focus,
low density “smoked”
targets yield 
times more -α than the foil
targets when irradiated at an angle of 
with s-polarized
pulses. The duration of -α emission from smoked
targets, measured with a fast streak camera, was similar to
that from foils.
PACS: 52.38.Ph – X-ray, γ-ray and particle generation / 52.25.Os – Emission, absorption, and scattering of electromagnetic radiation
© EDP Sciences, 2005
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