Abstract

Interferometric wavelengths, suitable for use as secondary standards of class “B”, are given for 68 thorium lines in the range 2650 to 3400 A, as emitted by a thorium-iodide electrodeless discharge tube without carrier gas. The rms deviation from the mean is 3×10−4 A. The method of preparation of a reliable and very intense thorium electrodeless tube is described.

© 1962 Optical Society of America

Full Article  |  PDF Article
Related Articles
Interferometric Wavelength Measurements of Germanium Lines of a Hollow Cathode Discharge*

Robert D. VanVeld and K. W. Meissner
J. Opt. Soc. Am. 46(8) 598-604 (1956)

Characteristics of Mercury Vapor–Metallic Iodide Arc Lamps

Gilbert H. Reiling
J. Opt. Soc. Am. 54(4) 532-540 (1964)

Interferometric Wavelengths of Thorium Lines between 9050 and 2566 Å

T. A. Littlefield and Anne Wood
J. Opt. Soc. Am. 55(11) 1509-1516 (1965)

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 (2)

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 (2)

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