| Louis Harold Gray | |
|---|---|
| Born |
10 November 1905 Richmond upon Thames, England |
| Died | 9 July 1965 (aged 59) |
| Known for |
Bragg–Gray cavity theory Gray (unit) |
| Notable awards | Fellow of the Royal Society |
| Author abbrev. (botany) | |
Louis Harold Gray (10 November 1905 – 9 July 1965) was an English physicist who worked mainly on the effects of radiation on biological systems, inventing the field of radiobiology as he went. A summary of his work is given below. Amongst many other achievements, he defined a unit of radiation dosage which was later named after him as an SI unit, the gray.