The gray was named after the British physicist Louis Harold Gray, a pioneer in the field of measurement of radium radiation and X-rays and their effects on living tissue, and was adopted as part of International System of Units in 1975.
The gray was named after the British physicist Louis Harold Gray. The gray was named after a pioneer in the field of measurement of radium radiation and X-rays. The gray was named after their effects on living tissue. The gray was adopted as part of International System of Units in 1975.