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Numerical study of picosecond soft x-ray enhancement from porous targets irradiated by double laser pulses

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JournalPhysics Letters A
DatePublished - 28 Jun 2010
Issue number29
Volume374
Number of pages6
Pages (from-to)2936-2941
Original languageEnglish

Abstract

Simulations show enhanced free-free and free-bound x-ray emission from laser-produced plasmas for both porous and solid targets irradiated by picosecond laser pulses under different prepulse conditions. The porous targets are modeled as a thick solid substrate over-coated with a thin porous layer. Using porous targets and prepulses shows that x-ray yields can be enhanced significantly over single pulses on solid density targets. The optimum conditions of prepulse and porous layer density are investigated by simulations with a fluid and atomic physics code. (C) 2010 Elsevier B.V. All rights reserved.

    Research areas

  • Laser plasmas, X-ray sources, Porous target, Laser prepulse, COLLISIONALLY-PUMPED LASER, ND-YAG LASER, FEMTOSECOND-LASER, PHOTOELECTRON-SPECTROSCOPY, GENERATION ENHANCEMENT, SUBPICOSECOND LASER, AQUEOUS-SOLUTIONS, ALUMINUM PLASMA, SILICON TARGET, HIGH-INTENSITY

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