Speaker
Dr
Alfio TORRISI
(Nuclear Physics Institute, AS CR)
Description
Graphene oxide foils implanted by copper ions at low energy and high dose, have been proposed as hybrid graphene based materials suitable to be laser irradiated in vacuum to produce hot plasmas. The special lattice structure of the graphene oxide foil can improve the propagation of the laser accelerated electrons inside the foil and enhance the electron density emerging from the rear foil surface. In such conditions increases the electric field developed in the non-equilibrium plasma and the consequent forward ion acceleration.
The foils have been optimized in thickness and they were irradiated with optimized laser parameters in order to produce high energy and quasi-monoenergetic proton beams by the femtosecond laser at the Institute of Plasma Physics and Laser Microfusion in Warsaw, Poland. Silicon carbide and ion collector detectors were used in time-of-flight configuration to monitor the plasma properties and to measure the velocity of the emitted protons and carbon ions from plasma.
Primary author
Co-authors
Dr
Alfio TORRISI
(Nuclear Physics Institute, AS CR)
Prof.
Anna Mackowa
(Nuclear Physics Institute, AS CR, 25068 Rez, Czech Republic)
Prof.
Jan Badziak
(Institute of Plasma Physics and Laser Microfusion, P.O. Box 49, 00-908 Warsaw, Poland)
Lorenzo Torrisi
(LNS)
Dr
Marcin Rosinski
(Institute of Plasma Physics and Laser Microfusion, P.O. Box 49, 00-908 Warsaw, Poland)
Dr
Petr Malinsky
(Nuclear Physics Institute, AS CR, 25068 Rez, Czech Republic)
Dr
Roman Böttger
(Institute of Ion Beam Physics and Materials Research, Helmholtz Zentrum Dresden-Rossendorf, 01328 Dresden, Germany)
Prof.
Zdenek Sofer
(Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic)
