Abstract
The energy distributions of protons emitted from the Coulomb explosion of hydrogen clusters by an intense femtosecond laser have been experimentally obtained. Ten thousand hydrogen clusters were exploded, emitting 8.1 keV protons under laser irradiation of intensity $6\ifmmode\times\else\texttimes\fi{}{10}^{16}{\mathrm{W}/\mathrm{c}\mathrm{m}}^{2}.$ The energy distributions are interpreted well by a spherical uniform cluster analytical model. The maximum energy of the emitted protons can be characterized by cluster size and laser intensity. The laser intensity scale for the maximum proton energy, given by a spherical cluster Coulomb-explosion model, is in fairly good agreement with the experimental results obtained at a laser intensity of ${10}^{16}--{10}^{17}{\mathrm{W}/\mathrm{c}\mathrm{m}}^{2}$ and also when extrapolated with the results of three-dimensional particle simulations at ${10}^{20}--{10}^{21}{\mathrm{W}/\mathrm{c}\mathrm{m}}^{2}.$
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
