Convert parker to tissue roentgen

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Parker

The parker (also called the rep) is a historical unit of radiation absorbed dose in tissue, approximately equal to 93 ergs per gram of tissue, historically used before the adoption of the rad and gray. 


Tissue Roentgen

The tissue roentgen is an older unit of radiation absorbed dose, approximately equivalent to the roentgen but defined in terms of energy absorption in tissue rather than air ionization. 


Parker to Tissue Roentgen conversion table
ParkerTissue Roentgen
11
22
55
1010
2525
5050
100100
500500
10001000

Most common radiation-exposure unit conversions