Investigation of laser-produced high-Z plasma soft X-ray sources

Author

Otsuka, Takayuki ; Duune, Padraig ; O´Sullivan, Gerry ; Higashiguchi, Takeshi ; Yugami, Noboru

Author_Institution

Sch. of Phys., Univ. Coll. Dublin, Dublin, Ireland

fYear

2013

fDate

16-21 June 2013

Firstpage

1

Lastpage

4

Abstract

We have investigated laser-produced plasmas (LPP) from high-Z elements as sources of soft X-rays. Emission spectra from several high Z LPPs are observed and the dependence of peak wavelength of unresolved transition array (UTA) emission on atomic number is reviewed. We observed that bismuth (Bi) has strong UTA emission centered at 4 nm, inside of the water window. The effect of laser power density and viewing angle on the spectral emission of Bi LPPs is studied. We also report results on the effect of dual pulse irradiation experiment and emission spectra from a low density Bi foam target.

Keywords

Z pinch; bismuth; foams; plasma X-ray sources; plasma density; plasma diagnostics; plasma production by laser; Bi; UTA emission; atomic number; dual pulse irradiation; emission spectra; high-Z elements; laser power density; laser-produced high-Z plasma soft X-ray sources; low density bismuth foam target; unresolved transition array emission; viewing angle; water window; Bismuth; Density measurement; Plasmas; Radiation effects; Ultraviolet sources; X-ray lasers; extreme ultraviolet (EUV); laser-produced plasma (LPP); soft X-ray (SXR); unresolved transition array (UTA); water window;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference (PPC), 2013 19th IEEE

Conference_Location

San Francisco, CA

ISSN

2158-4915

Type

conf

DOI

10.1109/PPC.2013.6627536

Filename

6627536