Abstract

New observations of the einsteinium emission spectrum have increased the number of observed lines from 53 to 290 in the wavelength range 2600–6900 Å. Ten lines have been assigned as transitions to the 5f11 7s2 4I15/2° ground state of Es i on the basis of reversal and hyperfine structure. The next odd level is 4I13/2° at 8759.25 cm−1. The lowest even level is 6I15/2 of the 5f11 7s7p configuration at 17 802.89 cm−1. The lowest level of the 5f106d7s2 configuration is 6I17/2 at 19 367.93 cm−1. Fifteen lines are classified as The lowest level transitions between Es i levels. Twenty-three lines are assigned as transitions to the two known lowest of Es ii. The hyperfine constants a5f = 0.033±0.001 cm−1 and bf = 0.48±0.06 cm−1 have been derived by an analysis of the hyperfine structure of assigned Es ii lines. From these constants for 253Es, we obtained a nuclear magnetic dipole moment of +3.6±0.4μN and a quadrupole moment of +6.0±0.8 b.

© 1974 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Hyperfine Structure in the 253Es Emission Spectrum. II. Nuclear Spin, Nuclear Magnetic Dipole Moment, and Energy Levels of Es ii*

Earl F. Worden, Ralph G. Gutmacher, Ronald W. Lougheed, John G. Conway, and Rolf J. Mehlhorn
J. Opt. Soc. Am. 60(10) 1297-1302 (1970)

One-Electron Spectrum of Doubly Ionized Lutetium (Lu iii) and Nuclear Magnetic Dipole Moment of 175Lu

Victor Kaufman and Jack Sugar
J. Opt. Soc. Am. 61(12) 1693-1698 (1971)

Energy levels of neutral californium (249Cf i) and singly ionized californium (249Cf ii)

John G. Conway, Earl F. Worden, and Jean Blaise
J. Opt. Soc. Am. B 12(7) 1186-1202 (1995)

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 (1)

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 (9)

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

Equations (6)

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