Abstract
The well-known phenomenon of generating very energetic ions (MeV and more) from laser produced plasmas is analysed for the use of alternative accelerators. One mechanism is an ion acceleration to MeV energies by the electrostatic double layer of the surface of a plasma of keV temperature, however the number of ions in the Debye sheath is small and cannot account for the observed number of ions which is 103 and more higher than that for which the Debye sheath can account. Another mechanism is the nonlinear force (ponderomotive) acceleration. This resulted in a transfer of 50% of the laser energy at uniform irradiation of a spherical pellet into 60 keV ions. This acceleration is increased geometrically by self-focussing. The nonlinear force and the relativistic properties of the optical constants cause two types of self-focussing where the high energy densities in the focus can lead to MeV ion emission of large quantities in full agreement with experiments. In order to extend these models by a sophisticated numerical treatment by 1 to 2 orders of magnitude, rather safe predictions were possible of how to produce 1010 eV heavy high Z ions with 100 MeV/nucleon. Bursts of 103 Ampere and 10-11 sec duration will provide special new techniques in nuclear and high energy physics. Combination with the nonlinear force driven electrostatic double layer method should result in small numbers of TeV ions with 1010 to 1011 eV/nucleon.
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Jones, D.A., Kane, E.L., Lalousis, P., Hora, H. (1984). GeV IONS from Laser Produced Plasmas. In: Hora, H., Miley, G.H. (eds) Laser Interaction and Related Plasma Phenomena. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7332-6_67
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DOI: https://doi.org/10.1007/978-1-4615-7332-6_67
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