Albert C. Parr

Dr. Parr received an M.S and Ph.D (1970) from the University of Chicago and has been involved in synchrotron radiation research and development, spectroscopy, and ion chemistry prior to joining the Optical Technology Division in 1986. Since then he has been active in developing new calibration and measurement strategies based upon the high accuracy cryogenic radiometer. This includes redefinition of the U.S. National SI units of the candela and lumen based upon measurements directly traceable to the cryogenic radiometer. Dr. Parr served as Division Chief of the Optical Technology Division from 1991 until 2007. He retired from NIST in 2007, and now consults with Utah State University on problems that assist some of the Division's remote sensing programs.

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