Abstract

We report 138 U i odd levels in the region 32 260–34 900 cm−1 and 16 even levels in the region 49500–49900 cm−1. These levels are reached by two- or three-step selective dye laser excitation, respectively, and detected by fluorescence to lower levels. J values are assigned by identifying decays to known lower levels. Unique J values are presented for 64 levels and partial assignment (two possibilities) for 42 levels. A transition array is given indicating 427 fluorescence lines observed in the blue-green region. The exponential time decay of the fluorescence intensity provides direct determination of excited state lifetimes. Radiative lifetimes of 135 levels are presented.

© 1979 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Radiative lifetimes, absorption cross sections, and the observation of new high-lying odd levels of 238U using multistep laser photoionization*

L. R. Carlson, J. A. Paisner, E. F. Worden, S. A. Johnson, C. A. May, and R. W. Solarz
J. Opt. Soc. Am. 66(8) 846-853 (1976)

Characteristics of an opto-galvanic effect in cesium and other gas discharge plasmas*

William B. Bridges
J. Opt. Soc. Am. 68(3) 352-360 (1978)

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 (4)

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

Tables (4)

You do not have subscription access to this journal. Article tables 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