Gray (SI unit)
Citation, DOI & article data
One gray is a large unit and is usually used with a prefix, e.g. milligray (mGy), microgray (μGy).
As per all other eponymous SI units when the unit is written out in full it is not capitalized, but when shortened to its symbol it is capitalized.
History and etymology
In July 1974, the International Commission on Radiation Units and Measurements (ICRU) recommended that a specific name, the gray, be adopted for the SI unit 'joule per kilogram' when used for absorbed radiation dose. This recommendation was expedited and passed by the International Committee of Weights and Measures (CIPM) at the 15th General Conference of Weights and Measures (CPGM) in May-June 1975 2.
- 1. Sekiya M, Yamasaki M. Louis Harold Gray (November 10, 1905-July 9, 1965): a pioneer in radiobiology. (2017) Radiological physics and technology. 10 (1): 2-7. doi:10.1007/s12194-016-0379-9 - Pubmed
- 2. Wyckoff HO, Allisy A, Lidén K. The new special names of SI units in the field of ionizing radiations. (1976) Radiology. 118 (1): 233-4. doi:10.1148/118.1.233 - Pubmed
- 3. Sinclair Wynchank. Louis Harold Gray. (2016) ISBN: 9783319433967