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ABSTRACT THE fine structure of the more important lines of the arc spectrum of silver was examined by means of a reflecting echelon grating of high resolving power. This instrument and its

mounting have been pre viously described1. The light source was a tube of fused silica fitted with external electrodes similar to those used by me in the investigation of the structures of

the arc lines of indium1, thallium2, and gallium3, excited by means of a high frequency oscillator. The discharge tube was filled with neon at a pressure of about 0.5 mm. of mercury, and the

capillary portion of the tube contained a small quantity of silver chloride. The capillary was heated to a temperature of about 600° C. All the lines examined were found to be simple. The

half-value width of the lines was determined by obtaining two images of the line under investigation on the same plate, making two exposures at different pressures of the air surrounding the

echelon grating ; the separation of the images at the smallest pressure difference at which the two images could still be resolved was measured and taken to be the half-value width of the

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support SIMILAR CONTENT BEING VIEWED BY OTHERS ACTIVE AURORAL ARC POWERED BY ACCELERATED ELECTRONS FROM VERY HIGH ALTITUDES Article Open access 18 January 2021 INTERFEROMETRIC MEASUREMENTS

OF REFRACTIVE INDEX AND DISPERSION AT HIGH PRESSURE Article Open access 10 March 2021 PARADOXICAL PEELING PATTERNS Article Open access 04 September 2024 REFERENCES * D. A. Jackson, _Proc.

Roy. Soc._, A, 123, 508 ; 1930. Article  ADS  Google Scholar  * D. A. Jackson, _Z. Phys._, 75, 229 ; 1932. Article  CAS  ADS  Google Scholar  * D. A. Jackson, _Z. Phys._, 74, 291 ; 1932.

Article  CAS  ADS  Google Scholar  * W. Mohammad and P. N. Sharma, _Indian J. Phys._, 6, 75 ; 1931. CAS  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS *

Clarendon Laboratory, Oxford D. A. JACKSON Authors * D. A. JACKSON View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and

permissions ABOUT THIS ARTICLE CITE THIS ARTICLE JACKSON, D. Structure of the Lines of the Arc Spectrum of Silver. _Nature_ 131, 691–692 (1933). https://doi.org/10.1038/131691c0 Download

citation * Issue Date: 13 May 1933 * DOI: https://doi.org/10.1038/131691c0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link

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