rad

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Unit of absorbed radiation dose, now replaced in the SI system by the gray (one rad equals 0.01 gray). It is defined as the dose when one kilogram of matter absorbs 0.01 joule of radiation energy.

The George Cross was awarded by King George VI and originally appeared in a small blue canton. The present design dates from 1964 when the islands gained independence. Effective date: 21 September 1964. >>