Research output: Contribution to journal › Article › peer-review
Laser proton acceleration in a water spray target. / Ter-Avetisyan, S.; Schnürer, M.; Nickles, P. V.; Smirnov, M. B.; Sandner, W.; Andreev, A.; Platonov, K.; Psikal, J.; Tikhonchuk, V.
In: Physics of Plasmas, Vol. 15, No. 8, 083106, 2008.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Laser proton acceleration in a water spray target
AU - Ter-Avetisyan, S.
AU - Schnürer, M.
AU - Nickles, P. V.
AU - Smirnov, M. B.
AU - Sandner, W.
AU - Andreev, A.
AU - Platonov, K.
AU - Psikal, J.
AU - Tikhonchuk, V.
N1 - Funding Information: This research was partly supported by the Deutsche Forschungsgemeinschaft (DFG), Sonderforschungsbereich Transregio TR18 and Engineering and Physical Sciences Research Council (EPSRC) grant EP/E035728/1. We thank the laser team at Max-Born-Institute for laser system guidance. S.T-A. thanks M. P. Kalashnikov for important discussions.
PY - 2008
Y1 - 2008
N2 - Studies of interaction of a cloud of submicrometer water droplets with ultrashort (40 fs) and intense (∼2× 1019 W cm2) laser pulses demonstrate an efficient acceleration of protons and oxygen ions. Due to a high ratio of the volume to the enveloping surface of a single droplet and a large number of droplets in a focal volume, efficient laser pulse absorption is enabled, which provides high electron temperatures and ion acceleration to high energies. The generation of ions with energies more than 1 MeV per nucleon is demonstrated. The observed quasi-monoenergetic feature in the proton spectrum is discussed with the thermal expansion-Coulomb explosion model and numerical simulations.
AB - Studies of interaction of a cloud of submicrometer water droplets with ultrashort (40 fs) and intense (∼2× 1019 W cm2) laser pulses demonstrate an efficient acceleration of protons and oxygen ions. Due to a high ratio of the volume to the enveloping surface of a single droplet and a large number of droplets in a focal volume, efficient laser pulse absorption is enabled, which provides high electron temperatures and ion acceleration to high energies. The generation of ions with energies more than 1 MeV per nucleon is demonstrated. The observed quasi-monoenergetic feature in the proton spectrum is discussed with the thermal expansion-Coulomb explosion model and numerical simulations.
UR - http://www.scopus.com/inward/record.url?scp=50849116733&partnerID=8YFLogxK
U2 - 10.1063/1.2968456
DO - 10.1063/1.2968456
M3 - Article
AN - SCOPUS:50849116733
VL - 15
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 8
M1 - 083106
ER -
ID: 85664861