Röntgen equivalent physical

The Rep ( unit symbol: rep), of Engl. roentgen equivalent physical was prior to 1969 similar to the Rem proposed, not internationally accepted unit of measurement for absorbed dose, which is now also obsolete wheel was introduced instead.

1 rep = 83 and 93 ergs / g ≈ 1.2 and 1.075 rad ≈ 0.012 or 0.01075 Gray

• Outdated unit (Physics)
• Radiometric unit