Abstract
A CONCAVE grating spectrograph, designed by Prof. M. Siegbahn and constructed in the workshop of this laboratory, has recently been focused and tested. The grating, ruled at this institute with 576 lines/mm, on a glass mirror of 5 m. radius, is used at a grazing angle of 4°, and the plate-holder covers the range from 0 to 200 A. A vacuum spark was used as a light source. In connecting the condensers (total capacity 0·4F.) with the electrodes, care was taken to reduce resistance and self-inductance so far as possible in order to increase the ionising power of the spark.
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EDLÉN, B. Na I - like Spectra of the Elements Titanium to Copper (Ti XII-Cu XIX). Nature 137, 531–532 (1936). https://doi.org/10.1038/137531b0
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DOI: https://doi.org/10.1038/137531b0
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