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@ARTICLE{Anand:51647,
author = {Anand, M. and Kahaly, S. and Ravindra Kumar, G. and
Krishnamurthy, M. and Sandhu, A. S. and Gibbon, P.},
title = {{E}nhanced hard x-ray emission from microdroplet preplasma},
journal = {Applied physics letters},
volume = {88},
issn = {0003-6951},
address = {Melville, NY},
publisher = {American Institute of Physics},
reportid = {PreJuSER-51647},
pages = {181111},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {We perform a comparative study of hard x-ray emission from
femtosecond laser plasmas in 15 mu m methanol microdroplets
and Perspex target. The hard x-ray yield from droplet
plasmas is similar or equal to 68 times more than that
obtained from solid plasmas at 2x10(15) W cm(-2). A 10 ns
prepulse at about $5\%$ of the main pulse appears to be
essential for hard x-ray generation from droplets. Hot
electron temperature of 36 keV is measured from the droplets
at 8x10(14) W cm(-2), whereas a three times higher intensity
is needed to obtain similar hot electron temperatures from
Perspex plasmas. Particle-in-cell simulations with very long
scale-length density profiles support experimental
observations. (c) 2006 American Institute of Physics.},
keywords = {J (WoSType)},
cin = {ZAM},
ddc = {530},
cid = {I:(DE-Juel1)VDB62},
pnm = {Scientific Computing},
pid = {G:(DE-Juel1)FUEK411},
shelfmark = {Physics, Applied},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000237321600011},
doi = {10.1063/1.2200761},
url = {https://juser.fz-juelich.de/record/51647},
}