Dr. Pavel Sasorov Profile

Dr. Pavel Sasorov

Lead Scientist at MV Keldysh Institute of Applied Mathematics

SPIE Involvement:

Author

Publications (3)

Proceedings Article | 14 May 2019 Presentation

Eight GeV electrons from a laser-heated capillary discharge plasma (Conference Presentation)

Anthony Gonsalves, Kei Nakamura, Joost Daniels, Carlo Benedetti, Christopher Pieronek, Tim de Raadt, Sven Steinke, Carl Schroeder, Stepan Bulanov, Eric Esarey, Kelly Swanson, Liona Fan-Chiang, Gennadiy Bagdasarov, Nadezhda Bobrova, Vladimir Gasilov, Pavel Sasorov, Wim Leemans

Proceedings Volume 11037, 110370R (2019) https://doi.org/10.1117/12.2521074

KEYWORDS: Capillaries, Plasma, Electrons, Electron beams, Waveguides

Read Abstract +

Proceedings Article | 14 May 2019 Presentation

Modeling of subchannel formation in laser-assisted capillary discharges (Conference Presentation)

Gennadiy Bagdasarov, Pavel Sasorov, Stepan Bulanov, Carlo Benedetti, Anthony Gonsalves, Daniele Margarone, Georg Korn

Proceedings Volume 11037, 110370S (2019) https://doi.org/10.1117/12.2520573

KEYWORDS: Plasma, Capillaries, Waveguides, Pulsed laser operation, Electrons, Wave propagation, Particles, Numerical modeling, Optical simulations, Basic research

Read Abstract +

Capillary discharges are widely used in many experiments devoted to laser-plasma interaction as a simple tool to create plasma with required parameters. One of the application of these experiments is laser-plasma accelerators (LPA) of charged particles. Such LPAs are able to accelerate electrons bunch to more that a GeV on the centimeters distances [1]. Essential part of these experiments is capillary discharge. It is used to create plasma waveguide in order to channel an accelerating laser pulse. The long (several decimetres) and thin (several microns) capillary is needed to achieve maximum acceleration but its fabrication is laborious and unreasonably expensive for the LPA experiments. Also capillary can be damaged by electric current pulse that is used to create plasma waveguide. Additional heating of the plasma channel by a nanosecond laser pulse is used in order to avoid these limitations [2]. Propagation of a heater laser through the plasma waveguide deepens it further in the vicinity of the capillary axis. Recent experiments show positive effect of such heating on the final acceleration of the electrons. This leads to a problem of choosing optimal parameters to achieve maximal acceleration. Consistent numerical modeling of plasmadynamics and laser pulse propagation in plasma channel is required to maintenance and optimise the future experiments. The magnetohydrodynamic (MHD) code MARPLE [3] previously used for discharge simulations [3-5] was improved by taken into account additional heating due to laser radiation. Results of simulations that were done for the BELLA experimental facility will be presented at the conference. The work was supported in part by the Competitiveness Program of MEPhI No.02.A03.21.0005, basic research program of the Project 3-OMN RAS, U.S. DOE under Contract No.DE-AC02-05CH11231, EU Reg.Dev.Fund Ns.CZ.02.1.01/0.0/0.0/15 008/0000162 and CZ.02.1.01/0.0/0.0/15_003/0000449 and by the MoEYaS of the Czech Republic No.LQ1606. [1] W.Leemans et al. Phys. Rev. Lett. 113, 245002 (2014) [2] N.Bobrova et al. Phys. Plasmas 20, 020703 (2013) [3] G.Bagdasarov et al. Phys. Plasmas 24, 053111 (2017) [4] G.Bagdasarov et al. Phys. Plasmas 24, 083109 (2017) [5] G.Bagdasarov et al. Phys. Plasmas 24, 123120 (2017)

Proceedings Article | 29 June 2017 Presentation

Plasma formation in noncircular capillary discharges (Conference Presentation)

Gennadiy Bagdasarov, Pavel Sasorov, Alexey Boldarev, Olga Olkhovskaya, Vladimir Gasilov, Danila Khikhlukha, Daniele Margarone, Georg Korn, Sergey Bulanov, Stepan Bulanov, Carlo Benedetti, Anthony Gonsalves, Wim Leemans

Proceedings Volume 10241, 102411F (2017) https://doi.org/10.1117/12.2266150

KEYWORDS: Capillaries, Plasma, Laser applications, X-ray lasers, Plasma diagnostics, Device simulation, Optical simulations, Waveguide lasers, Waveguides, Applied mathematics

Read Abstract +

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years