12th Informal Conference on Photochemistry: Proceedings of the 12th Informal Conference on Photochemistry, Held at the National Bureau of Standards ... June 28-July 1, 1976 (Classic Reprint) - Softcover

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Excerpt from 12th Informal Conference on Photochemistry<br/><br/>The three primary source standards being used at nbs are the gold point blackbody cavity for which the spectral radiance is given by Planck's law, the wall-stabilized hy arc for which the spectral radiance is given by accurately known quantum mechani cal absorption coefficients for atomic hy, and the electron storage ring facility for which the spectral radiance is given by the theory of electron synchrotron radiation. The selection of one of these standards for a calibration application is influenced mostly by the specified wavelength region.

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