TY - JOUR
T1 - Evolution of energy spectrum from laser-accelerated protons with a 100 fs intense prepulse
AU - Glinec, Y.
AU - Genoud, G.
AU - Lundh, O.
AU - Persson, A.
AU - Wahlström, C. G.
PY - 2008/11/1
Y1 - 2008/11/1
N2 - A parametric study is reported where a femtosecond prepulse is used to change the target properties before the interaction with a multi-terawatt laser pulse which accelerates protons from a foil target. The proton spectrum as function of the prepulse delay and intensity, up to 1.5 ns and up to 3×1016 W/cm2, respectively, shows a global decrease of the maximum proton energy with delay and intensity. However, under appropriate conditions, it is found that the maximum proton energy increases by more than 10% and that the spectral shape changes.
AB - A parametric study is reported where a femtosecond prepulse is used to change the target properties before the interaction with a multi-terawatt laser pulse which accelerates protons from a foil target. The proton spectrum as function of the prepulse delay and intensity, up to 1.5 ns and up to 3×1016 W/cm2, respectively, shows a global decrease of the maximum proton energy with delay and intensity. However, under appropriate conditions, it is found that the maximum proton energy increases by more than 10% and that the spectral shape changes.
UR - http://www.scopus.com/inward/record.url?scp=55349110613&partnerID=8YFLogxK
U2 - 10.1007/s00340-008-3172-6
DO - 10.1007/s00340-008-3172-6
M3 - Article
AN - SCOPUS:55349110613
SN - 0946-2171
VL - 93
SP - 317
EP - 321
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
IS - 2-3
ER -