Spark spectra of various elements in helium in the extreme ultra-violet.
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Spark spectra of various elements in helium in the extreme ultra-violet.

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Published .
Written in English


Book details:

Edition Notes

Thesis (M.A.) -- University of Toronto, 1920.

The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL17376471M

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  Spark Spectra of Various Elements in Helium in the Extreme Ultra-Violet McLennan, J. C.; Lewis, A. C. Abstract. Publication: Proceedings of the Royal Society of London Series A. Pub Date: October DOI: /rspa Bibcode: RSPSAM Cited by: 2. In studying spark spectra it was decided, since a supply of helium was available, to use that gas as the atmosphere surr-ouniding the spark. Its transparency to ultra-violet light is well' kniown as a result of Lyman's work, and the fact that its spectrum in the regrioni X A.U. to. adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: 6. Lang, la by employing a vacuum grating spectroscope of the kind designed at Toronto, has made measurements on the spark spectra of twenty elements down to the extreme limit of the optical region. Ireton, TM Shaver ~a and \Veinberg ~ have also studied metallic spectra in the extreme ultra-violet.

McLennan (J. C.) and Lewis (A. C.) Spark Spectra of Various Elements in Helium in the Extreme Ultra-Violet, McLennan (J. C.), Young (J. F. T.) and Ireton (H. J. C.) Arc Spectra int vacuo and Spark Spectra in Helium of Various Elements, Magnetic declination changes at British Observatories (Chree), An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Software An illustration of two photographs. Full text of "The spectroscopy of the extreme ultra-violet".   Index to the Literature on Spectrochemical Analysis, Part II, American Society for Testing Materials, Philadelphia, Pa (–). Extreme UV spectra of the gadolinium and terbium ions excited in the laser-produced plasma and vacuum spark sources were recorded in the 40– Å region and investigated on the basis of the.

  If the emission spectrum from the sample contains lines of light that correspond to helium's emission spectrum, then the sample contains helium. Second, and perhaps more importantly, the existence of atomic spectra and the fact that atomic spectra are discontinuous, can tell us a lot about how the atoms of each element are constructed. LONDON. Royal Society, December 4.—A. Fowler: The structure of the spectrum of ionised nitrogen. New observations of the second line spectrum of nitrogen (N II or N+) have been made in the. Arc Spectra in Vacuo and Spark Spectra in Helium of Various Elements. Arc Spectra in Vacuo and Spark Spectra in Helium of Various / Read Online Download PDF Cite this Item xml. Spark Spectra of Various Elements in Helium in the Extreme Ultra-Violet. Spark Spectra of Various Elements in Helium in the Extreme Ultra -Violet (pp.   The key difference between hydrogen and helium emission spectra is that the helium emission spectrum (plu. spectra) has more lines than that of the hydrogen emission spectrum (plu. spectra).. The emission spectrum of a chemical element or compound is the series of lines that represent the wavelengths of electromagnetic radiation emitted by that chemical element while the .