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Multiplicity in the spectra of cadmium I, II, and III Argyle, Sidney Charles
Abstract
A grating spectrograph has been constructed using a concave grating with a radius of curvature of 21.07 feet, and ruled at 600 lines/mm. on an aluminum surface. The plate holder, which is loaded in sections with 2 x 18 inch plates, is 13 feet long, and adequately covers the wave-length range from 2000 A to 15,000 A. A water cooled Schüler tube, a helium purifying system and a vacuum arc have also been built and put into operation. The above equipment has been used to investigate the spectra of cadmium, and 51 lines in Cd I and Cd II have been confirmed. Several promising lines , namely λ 4415.62, λ 3533.71 and λ 3250.11, due respectively to the transitions 5p ²P₁⁰[subscript ½] – 4d⁹ 5s² ²D₂[subscript ½], 5p ²P₁⁰[subscript ½] – 4d⁹ 5s² ²D₁[subscript ½], 5p ²P⁰[subscript ½] – 4d⁹ 5s² ²D₁[subscript ½] in Cd II have been carefully studied for isotope shift. The 21 foot grating used in this study had not sufficient resolving power to resolve any structure. A comprehensive table of wave-lengths has been compiled for Cadmium I, II and III.
Item Metadata
Title |
Multiplicity in the spectra of cadmium I, II, and III
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1950
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Description |
A grating spectrograph has been constructed using a concave grating with a radius of curvature of 21.07 feet, and ruled at 600 lines/mm. on an aluminum surface.
The plate holder, which is loaded in sections with 2 x 18 inch plates, is 13 feet long, and adequately covers the wave-length range from 2000 A to 15,000 A.
A water cooled Schüler tube, a helium purifying system and a vacuum arc have also been built and put into operation.
The above equipment has been used to investigate the spectra of cadmium, and 51 lines in Cd I and Cd II have been confirmed.
Several promising lines , namely λ 4415.62, λ 3533.71 and λ 3250.11, due respectively to the transitions 5p ²P₁⁰[subscript ½] – 4d⁹ 5s² ²D₂[subscript ½], 5p ²P₁⁰[subscript ½] – 4d⁹ 5s² ²D₁[subscript ½], 5p ²P⁰[subscript ½] – 4d⁹ 5s² ²D₁[subscript ½]
in Cd II have been carefully studied for isotope shift. The 21 foot grating used in this study had not sufficient resolving power to resolve any structure.
A comprehensive table of wave-lengths has been compiled for Cadmium I, II and III.
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Genre | |
Type | |
Language |
eng
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Date Available |
2012-03-05
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0085830
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.