Abstract

A system for the calibration of spectrum records produced by recording spectrographs is described. The method employs as a fiducial scale the recorded interference peaks produced in dispersed white light by a Fabry-Perot etalon and is consequently free of usual systematic calibration errors. Practical details of the method as used for measurements in the infrared with a grating instrument of high resolving power are outlined. Calibration equations are developed for this case and a discussion of factors determining the accuracy of measurement is presented.

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  1. For a review article on recording spectrographs of this class see a report from the U. S. Naval Ordnance Laboratory by C. J. Humphreys, NOL-CORONA, Report 146 (1954).
  2. R. C. Nelson, J. Opt. Soc. Am. 39, 69 (1949).
  3. P. J. Treanor, Monthly Notices, Roy. Astron. Soc. 109, 389 (1949).

Humphreys, C. J.

For a review article on recording spectrographs of this class see a report from the U. S. Naval Ordnance Laboratory by C. J. Humphreys, NOL-CORONA, Report 146 (1954).

Nelson, R. C.

R. C. Nelson, J. Opt. Soc. Am. 39, 69 (1949).

Treanor, P. J.

P. J. Treanor, Monthly Notices, Roy. Astron. Soc. 109, 389 (1949).

Other (3)

For a review article on recording spectrographs of this class see a report from the U. S. Naval Ordnance Laboratory by C. J. Humphreys, NOL-CORONA, Report 146 (1954).

R. C. Nelson, J. Opt. Soc. Am. 39, 69 (1949).

P. J. Treanor, Monthly Notices, Roy. Astron. Soc. 109, 389 (1949).

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