A Symmetrical Cylindrical Rotating Step Sector

  • H. G. Yuster


The controlled reduction of light intensity illuminating a height of spectrographic slit to give a graded exposure for plate calibration and quantitative implementation may be accomplished by several methods. Numerous literature references are listed by Meggers and Scribner 1 and include step slits, step filters, step wedges, rotating log sectors, and rotating step sectors. Harrison 2,3 gives a detailed critical discussion of the methods and a convenient summary has been made by Ahrens and Taylor.4


Step Filter Disk Type Step Sector Plate Calibration Spectrochemical Analysis 
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  1. 1.
    W. F. Meggers and B. F. Scribner, Index to the Literature on Spectrochemical Analysis, Pts. I—IV (1920–1955).Google Scholar
  2. 2.
    G. R. Harrison, J. Opt. Soc. Amer. 24, 60 (1934).Google Scholar
  3. 3.
    G. R. Harrison, R. C. Lord, and J. R. Loofbourow, Practical Spectroscopy (Prentice—Hall, Inc., New York, 1948 ), Chap. 13, pp. 331–342.Google Scholar
  4. 4.
    L. H. Ahrens and S. R. Taylor, Spectrochemical Analysis (Addison—Wesley Publishing Co., Inc., Reading, Mass., 1961), 2nd ed., Chap. 11, pp. 150–151.Google Scholar
  5. 5.
    J. R. Churchill, Anal. Chem. 16, 653 (1944).Google Scholar
  6. 6.
    M. Honerjager-Sahn and H. Kaiser, Spectroehim. Acta 2, 396 (1944).CrossRefGoogle Scholar
  7. 7.
    H. Kaiser, Spectrochim. Ada 2, 1 (1941).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • H. G. Yuster
    • 1
  1. 1.New Brunswick LaboratoryUnited States Atomic Energy CommissionNew BrunswickUSA

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