title: Monoenergetic proton emission from nuclear reaction induced by high intensity laser-generated plasma.
abstract: A 10(16) W∕cm(2) Asterix laser pulse intensity, 1315 nm at the fundamental frequency, 300 ps pulse duration, was employed at PALS laboratory of Prague, to irradiate thick and thin primary CD(2) targets placed inside a high vacuum chamber. The laser irradiation produces non-equilibrium plasma with deutons and carbon ions emission with energy of up to about 4 MeV per charge state, as measured by time-of-flight (TOF) techniques by using ion collectors and silicon carbide detectors. Accelerated deutons may induce high D-D cross section for fusion processes generating 3 MeV protons and 2.5 MeV neutrons, as measured by TOF analyses. In order to increase the mono-energetic proton yield, secondary CD(2) targets can be employed to be irradiated by the plasma-accelerated deutons. Experiments demonstrated that high intensity laser pulses can be employed to promote nuclear reactions from which characteristic ion streams may be developed. Results open new scenario for applications of laser-generated plasma to the fields of ion sources and ion accelerators.
authors.affiliation: INFN-LNS Via S. Sofia 44, 95123 Catania, Italy. torrisi@lns.infn.it
authors.forename: L
authors.initials: L
authors.lastname: Torrisi
authors.forename: S
authors.initials: S
authors.lastname: Cavallaro
authors.forename: M
authors.initials: M
authors.lastname: Cutroneo
authors.forename: L
authors.initials: L
authors.lastname: Giuffrida
authors.forename: J
authors.initials: J
authors.lastname: Krasa
authors.forename: D
authors.initials: D
authors.lastname: Margarone
authors.forename: A
authors.initials: A
authors.lastname: Velyhan
authors.forename: J
authors.initials: J
authors.lastname: Kravarik
authors.forename: J
authors.initials: J
authors.lastname: Ullschmied
authors.forename: J
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authors.lastname: Wolowski
authors.forename: A
authors.initials: A
authors.lastname: Szydlowski
authors.forename: M
authors.initials: M
authors.lastname: Rosinski