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. April Newsletter
. April Journal
Upcoming Events
. 2010 Summer Professional Development School
Internal Dosimetry
23 - 26 June 2010
Idaho State University, Pocatello, Idaho
. International Conference on Radiation Protection in Medicine
1-3 September 2010
Varna, Bulgaria
. 2010 Meeting of the Air Monitoring Users Group
4-7 May 2010
Las Vegas, NV
21 March 2010

Gray (Gy)

The international system (SI) unit of radiation dose expressed in terms of absorbed energy per unit mass of tissue. The gray is the unit of absorbed dose and has replaced the rad. 1 gray = 1 Joule/kilogram and also equals 100 rad.
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