Dr. Benjamin Tsai is a physical scientist in the Sensor Science Division at the National Institute of Standards and Technology. Since his career at NIST began in 1993, his research interests have included radiation thermometry, heat flux, rapid thermal processing, and spectrophotometry. From 2006 to 2007, he served as the NIST Quality System Coordinator. Now, he serves as the division Property Custodian, a computer security representative, and a PML SHIP Director. Currently, his research has focused on solid state lighting and its Measurement Assurance Program.
Dr. Tsai co-edited a two-volume authoritative reference on radiation thermometry, entitled "Radiometric Temperature Measurements: I. Fundamentals" and "Radiometric Temperature Measurements: II. Applications." The two volumes are Volume 42 and Volume 43 of the series, "Experimental Methods in the Physical Sciences," edited by the treatise editors, Albert C. Parr and Thomas Lucatorto. He has also co-edited Volume 46, entitled "Spectrophotometry: Accurate Measurement of Optical Properties of Materials" for the same series. He is a co-organizer and lecturer for the Spectroradiometry, Spectrophotometry, and Photometry Short Courses, which run every two years.
2018 NIST Bronze Award "for the establishment of an accurate database of human skin reflectance measurements for wavelengths ranging from the shortwave infrared to the ultraviolet spectral region."