Polarizability measurements of exploding wire vapor using optical interferometry and X-pinch backlighting

Author

Min Hu ; Sinars, D.B. ; Pikuz, S.A. ; Chandler, K.M. ; Greenly, J.B. ; Hammer, D.A. ; Kusse, B.R. ; Shelkovenko, T.A.

Author_Institution

Lab. of Plasma Studies, Cornell Univ., Ithaca, NY, USA

fYear

2000

fDate

4-7 June 2000

Firstpage

140

Abstract

Summary form only given. Most of the data for the atomic polarizability of neutral metal vapor is theoretically calculated as opposed to experimentally measurements. In this paper we present experimentally measured values for the polarizability of neutral vapor generated by exploding wires. The polarizability P, index of refraction /spl eta/ and the neutral vapor density n can be related by the expression /spl eta/=1+2/spl pi/nP. X-pinch backlighting results give the line-integrated neutral vapor density and, assuming azimuthal symmetry, yield the neutral density as a function of radius. Again assuming azimuthal symmetry, the line-integrated interferometry measurements are inverted to give /spl eta/ as a function of position.

Keywords

exploding wires; light interferometry; pinch effect; plasma diagnostics; polarisability; X-pinch backlighting; atomic polarizability; azimuthal symmetry; exploding wire vapor; index of refraction; line-integrated interferometry; line-integrated neutral vapor density; neutral density; neutral metal vapor; optical interferometry; polarizability measurements; Laser modes; Optical imaging; Optical interferometry; Optical polarization; Plasma chemistry; Plasma density; Plasma measurements; US Department of Energy; Wire; X-ray lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2000. ICOPS 2000. IEEE Conference Record - Abstracts. The 27th IEEE International Conference on

Conference_Location

New Orleans, LA, USA

ISSN

0730-9244

Print_ISBN

0-7803-5982-8

Type

conf

DOI

10.1109/PLASMA.2000.854797

Filename

854797