Spectroscopic characterization of an ultrashort-pulse-laser-driven Ar cluster target incorporating both Boltzmann and particle-in-cell models

Sherrill, M. E.*; Abdallah, J. Jr.*; Csanak, G.*; Dodd, E. S.*; Fukuda, Yuji; Akahane, Yutaka; Aoyama, Makoto; Inoue, Norihiro*; Ueda, Hideki*; Yamakawa, Koichi; et al.

Physical Review E, 73(6), p.066404_1 - 066404_6, 2006/06

https://doi.org/10.1103/PhysRevE.73.066404

A model that solves simultaneously both the electron and atomic kinetics was used to generate synthetic He X-ray spectra to characterize a high intensity ultrashort laser driven Ar cluster target experiment. In particular, level populations were obtained from a detailed collisional-radiative model where collisional rates were computed from a time varying electron distribution function obtained from the solution of the zero dimensional Boltzmann equation. In addition, aparticle-in-cell simulation was used to model the laser interaction with the cluster target and provided the initial electron energy distribution function (EEDF) for the Boltzmann solver. This study suggests that the high density plasma contribution to the time-integrated He spectrum was in a highly non-equilibrium state in both the EEDF and the ion level populations and provides a prediction of 5.7 ps for the average cluster integrity time for this high density state.

Characteristics of X ray calibration fields for performance test of radiation measuring instruments

; Takahashi, Fumiaki; Sawahata, Tadahiro*; *; *; Murayama, Takashi

JAERI-Tech 99-004, 89 Pages, 1999/02

JAERI-Tech-99-004.pdf:2.56MB

no abstracts in English

Radiative electron capture in heavy ion and He collisions

Kawatsura, Kiyoshi; *; ; *; ; Ozawa, K.; ; *

Nuclear Instruments and Methods in Physics Research A, 262, p.33 - 36, 1987/00

https://doi.org/10.1016/0168-9002(87)90184-7

no abstracts in English

Dose Evaluation Method of High-power X-ray Generator for Inadiation

; ; ;

JAERI-M 7891, 50 Pages, 1978/11

JAERI-M-7891.pdf:1.0MB

no abstracts in English