percentage depth dose
Also found in: Dictionary, Thesaurus, Medical, Acronyms.
percentage depth dose[pər¦sen·tij ¦depth ′dōs]
The percentage of the absorbed dose from ionizing radiation at a given depth within a body to the absorbed dose at a reference point, usually the position of the peak absorbed dose.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.