Speaker
Prof.
wenjun ma
(Peking university)
Description
It is demonstrated in experiments and simulations that radiation pressure acceleration (RPA) and sheath acceleration of ions can be automatically cascaded in sequence when a single n ultraintense femtosecond laser pulse is focused on a double-layer target composed of well controlled, slightly underdense plasma and ultrathin foil. We reveal that such cascaded acceleration is especially suited for heavy ion acceleration with femtosecond lasers by combining the merits of RPA and sheath acceleration. At optimal condition, carbon ions with energy per nucleon up to 48 MeV/u were generated with pulse energy of 9.2 J on targets. With the spreading of petawatt laser systems all over the world, laser-based heavy ion sources employing this scheme may trigger significant advances in nuclear physics, high energy density physics, and medical physics.
Primary author
Prof.
wenjun ma
(Peking university)
Co-authors
Prof.
Chang Hee Nam
(Center for Relativistic Laser Science, Institute for Basic Science, Gwangju 61005, Korea)
Dr
I Jong kim
(Center for Relativistic Laser Science, Institute for Basic Science, Gwangju 61005, Korea)
Prof.
Jörg Schreiber
(LMU Munich)
Prof.
Matt zepf
(Department of Physics and Astronomy, Centre for Plasma Physics, Queens University, Belfast BT7 1NN, United Kingdom)
Dr
jinqing yu
(Peking university)
Prof.
xueqing yan
(Peking University)
