physics-2018-posters-abstracts

Page 41

Notes:

allied

academies

Journal of Applied Mathematics and Statistical Applications | Volume: 1

August 23-24, 2018 | London, UK

Applied Physics

International Conference on

Particles acceleration processes in the laser plasma

Victor Apollonov

High Power Lasers RAS, Russia

o date, as a result of a large series of experimental and

theoretical studies scientists managed to identify the role

and nature of the absorption of laser radiation in a plasma,

the mechanisms of energy transfer between different

components, the main properties of kinetics of the ionization

state and dynamics of expansion of the laser-plasma torch. A

significantcontributiontotheexperimentalresearchhasbeen

made, in particular, due to the development and application

of laser mass spectrometry, allowing one to determine the

charge composition of the plasma, the properties of the

processes of ionization, acceleration, and recombination in

laser plasma. Numerous studies have established that the

laser plasma is an intense emitter of charged and neutral

particles: the electrons, ions, and atoms. The mechanisms

of the energy spectra of ions and neutral particles have

been studied in detail, and laser sources of particles, which

have found application in accelerators, cyclotrons, and

mass spectrometers, have been developed and technically

implemented. A laser-plasma generator of multiply charged

ions produces a large number of heavy ions in the regime of

short periodic pulses, which is of interest for ion accelerators

operating in the pulse periodic regime. The source of this

type is also promising for research in the field of heavy-ion

fusion. The laser-plasma generator is based on the physical

phenomenon of generation of highly excited states of atoms

by a high-power laser pulse focused on the surface of a solid

target. With expanding a high-temperature laser plasma into

vacuum a high-power flux of charged particles is produced.