"The rad is defined as the dose represented by 100 ergs of energy being absorbed by one gramme of matter. The erg is the unit of energy in the cgs system, where one erg = 1 x 10-7 joules. Practically-speaking, especially for the contemporary user, one rad = 0.01 Gy = 0.01 Jkg-1 or alternatively one gray = 100 rads."
"The rad is defined as the dose represented by 100 ergs of energy being absorbed by one gramme of matter. The erg is the unit of energy in the cgs system, where one erg = 1 x 10-7 joules. Practically-speaking, especially for the contemporary user, one rad = 0.01 Gy = 0.01 Jkg-1 or alternatively one gray = 100 rads."
"The rad (symbol rad) is a legacy unit in the cgs system for the absorbed dose of ionising radiation, although it remains in widespread use in the United States. Rad superseded the rep and in turn was replaced by the gray."
"The rad is defined as the dose represented by 100 ergs of energy being absorbed by one gramme of matter. The erg is the unit of energy in the cgs system, where one erg = 1 x 10-7 joules. Practically-speaking, especially for the contemporary user, one rad = 0.01 Gy = 0.01 Jkg-1 or alternatively one gray = 100 rads."