Plasma particle-in-cell simulations with QED reactions for pair production experiments using a high-Z solid target

Toseo Moritaka, Luca Baiotti, An Lin, Li Weiwu, Youichi Sakawa, Yasuhiro Kuramitsu, Taichi Morita, Hideaki Takabe

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

A new simulation scheme has been developed to investigate high-energy plasma phenomena including pair production and Bremsstrahlung in a high-Z nuclear field. The simulation scheme consists of (1) a Particle-in-Cell scheme for relativistic plasma dynamics, (2) a conservative semi-Lagrangian scheme for hard photon transport and (3) a Monte-Carlo scheme for the considered QED reactions. The developed scheme is applied to a test simulation relevant to recent experiments of positron production from a thin gold target irradiated by a high intensity laser. The simulation results successfully show a basic process leading to the positron ejection from the target. The process involves electron acceleration due to laser-plasma interaction at the target front, hard photon emission and pair production inside the target, and electrostatic positron acceleration at the target rear side.

Original languageEnglish
Article number012016
JournalJournal of Physics: Conference Series
Volume454
Issue number1
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event24th IUPAP Conference on Computational Physics, IUPAP-CCP 2012 - Kobe, Japan
Duration: Oct 14 2012Oct 18 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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