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Light Source for Producing Self-Reversed Spectral Lines
A new light source has been developed which produces numerous self-reversed lines in both the first and second spectra of rare-earth elements. It consists of a pulsed arc discharge with a peak current of 75 amperes and an on-time of one millisecond per cycle. Resonance lines are nearly completely ab...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
1962
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312815/ http://dx.doi.org/10.6028/jres.066A.032 |
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author | Sugar, Jack |
author_facet | Sugar, Jack |
author_sort | Sugar, Jack |
collection | PubMed |
description | A new light source has been developed which produces numerous self-reversed lines in both the first and second spectra of rare-earth elements. It consists of a pulsed arc discharge with a peak current of 75 amperes and an on-time of one millisecond per cycle. Resonance lines are nearly completely absorbed, and can be distinguished by this character. From spectrograms obtained with this light source, the ground states of Tb I and U II were determined, and those reported for Yb I, Yb II, Tm I, Tm II, and U I were confirmed. |
format | Online Article Text |
id | pubmed-5312815 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1962 |
publisher | [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology |
record_format | MEDLINE/PubMed |
spelling | pubmed-53128152023-06-15 Light Source for Producing Self-Reversed Spectral Lines Sugar, Jack J Res Natl Bur Stand A Phys Chem Article A new light source has been developed which produces numerous self-reversed lines in both the first and second spectra of rare-earth elements. It consists of a pulsed arc discharge with a peak current of 75 amperes and an on-time of one millisecond per cycle. Resonance lines are nearly completely absorbed, and can be distinguished by this character. From spectrograms obtained with this light source, the ground states of Tb I and U II were determined, and those reported for Yb I, Yb II, Tm I, Tm II, and U I were confirmed. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 1962 1962-08-01 /pmc/articles/PMC5312815/ http://dx.doi.org/10.6028/jres.066A.032 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Bureau of Standards Section A is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright. |
spellingShingle | Article Sugar, Jack Light Source for Producing Self-Reversed Spectral Lines |
title | Light Source for Producing Self-Reversed Spectral Lines |
title_full | Light Source for Producing Self-Reversed Spectral Lines |
title_fullStr | Light Source for Producing Self-Reversed Spectral Lines |
title_full_unstemmed | Light Source for Producing Self-Reversed Spectral Lines |
title_short | Light Source for Producing Self-Reversed Spectral Lines |
title_sort | light source for producing self-reversed spectral lines |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312815/ http://dx.doi.org/10.6028/jres.066A.032 |
work_keys_str_mv | AT sugarjack lightsourceforproducingselfreversedspectrallines |