Abstract

An intense vacuum uv atomic line source excited in a 2450-MHz microwave discharge cavity is described and analyzed. Additional features are a clean spectrum, very little window deterioration, little or no self-absorption, and easily interchangeable parts. (For the O-atom source only the 1300-Å triplet shows up over the 1200-Å to 1650-Å region.) This source is suitable for the detection of various species by absorption measurement in fast occurring events such as those in ballistic ranges and shock tubes. Atomic line shape theory is used to analyze an O-atom line source with intensity ratios I1306Å:I1305Å:I1302Å:1:2.9:4.5. This source is described by a 2700 ± 200 K temperature and certain self-absorption parameters as deduced from the measurement of their intensity ratios and their transmission characteristics through known concentrations of O-atoms. A good theoretical fit to the measured transmission validates the assumed uniform source temperature and excitation for the analysis. An f value (f = 0.052 ± 0.005) for the O-atom 1300-Å triplet absorption and a collision diameter of 5.5 ± 1.0 Å between the O-atom and the nitrogen molecule were determined in the course of this study.

© 1971 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Intense Vacuum Ultraviolet Atomic Line Sources

Douglas Davis and Walter Braun
Appl. Opt. 7(10) 2071-2074 (1968)

Continuous Discharge Line Source for the Extreme Ultraviolet

F. Paresce, S. Kumar, and C. S. Bowyer
Appl. Opt. 10(8) 1904-1908 (1971)

Calibration of Vacuum-Ultraviolet Monochromators by the Molecular Branching-Ratio Technique*

M. J. Mumma and E. C. Zipf
J. Opt. Soc. Am. 61(1) 83-88 (1971)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription