Generation of high-quality mega-electron volt proton beams with intense-laser-driven nanotube accelerator
Author(s) -
M. Murakami,
Motohiko Tanaka
Publication year - 2013
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.4798594
Subject(s) - electron , coulomb explosion , proton , carbon nanotube , atomic physics , nanotube , laser , ion , collimated light , electric field , materials science , nanotechnology , physics , nuclear physics , ionization , optics , quantum mechanics
An ion acceleration scheme using carbon nanotubes (CNTs) is proposed, in which embedded fragments of low-Z materials are irradiated by an ultrashort intense laser to eject substantial numbers of electrons. Due to the resultant characteristic electrostatic field, the nanotube and embedded materials play the roles of the barrel and bullets of a gun, respectively, to produce highly collimated and quasimonoenergetic ion beams. Three-dimensional particle simulations, that take all the two-body Coulomb interactions into account, demonstrate generation of quasimonoenergetic MeV-order proton beams using nanometer-size CNT under a super-intense electrostatic field ∼1014 V m−1.
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