Absorption Cross-Sections of Sodium Diatomic Molecules

Date of Award

Fall 12-1985

Document Type


Degree Name

Master of Science (MS)



Committee Director

Wynford L. Harries

Committee Member

James L. Cox, Jr.

Committee Member

G. E. Copeland

Committee Member

Mark D. Havey

Committee Member

G. R. Hoy

Call Number for Print

Special Collections LD4331.P48F66


The absorption cross sections of sodium dimers were studied using a heat pipe over operating in the non-heat-pipe mode. Three wavelength regions were observed. They are in the red, the green-blue, and the near ultraviolet regions. The absorption cross section depends on the wavelength of the incident light. Representative peak values for the v"=0 progression in the red and green-blue regions are 2.59 A sup 2 (average value) and 11.77 A sup 2 (Tave=624 K). The value for the C greater than X transitions is several tenths A sup 2. The cross sections were measured from absorption spectra taken as a function of temperature.


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