Interaction of annular-focused laser beams with solid targets. (9th July 2015)

• Record Type: Journal Article
• Authors: Andreev, N.E.; Povarnitsyn, M.E.; Veysman, M.E.; Faenov, A.YA.; Levashov, P.R.; Khishchenko, K. V.; Pikuz, T.A.; Magunov, A.I.; Rosmej, O.N.; Blazevic, A.; Pelka, A.; Schaumann, G.; Schollmeier, M.; Roth, M.
• Is Part Of: Laser and particle beams. Volume 33:Number 3(2015)
• Page Start: 541
• Page End: 550
• Publication Date: 2015-07-09
• Subjects: Laser beams -- Periodicals; Particle beams -- Periodicals; 535.5
• DOI: 10.1017/S0263034615000580
• Languages: English
• ISSNs: 0263-0346

Abstract

<abstract abstract-type="normal"> <title>Abstract</title> <p>The two-temperature, 2D hydrodynamic code Hydro–ELectro–IOnization–2–Dimensional (HELIO2D), which takes into account self-consistently the laser energy absorption in a target, ionization, heating, and expansion of the created plasma is elaborated. The wide-range two-temperature equation of state is developed and used to model the metal target dynamics from room temperature to the conditions of weakly coupled plasma. The simulation results are compared and demonstrated a good agreement with experimental data on the Mg target being heated by laser pulses of the nanosecond high-energy laser for heavy ion experiments (NHELIX) at Gesellschaft fur Schwerionenforschung. The importance of using realistic models of matter properties is demonstrated.</p> </abstract>