Register for Updates About This Site Editorial Board Help/FAQ Comments

Browsing slide set:

Radiation Effects (NSBRI Series)   (Ann R. Kennedy, PhD)

 8     of 18


add slide

Perinent Radiation Terminology II

Radiation Effects (NSBRI Series) (Ann R. Kennedy, PhD)

Q   quality factor   RBE   cancer   radiation   relative biological effectiveness

Transcript:
The Relative Biological Effectiveness, the RBE, is a term used to compare biologic effects for different kinds of radiation. RBE is defined as the ratio of the dose required for a given biological effect with x-rays to the dose required for the same effect with the radiation in question. In general, RBE increases with increasing LET for a number of different biologic effects.

The Quality Factor (Q) is used for purposes of radiation protection and is another LET-dependent factor by which doses are multiplied to account for the varying effectiveness of different kinds of radiation. The major unit of radiation dose which accounts for the biological effectiveness of different kinds of radiation is the Sievert.

  1. NASA. (2000). Earth's magnetosphere. Retrieved 06-15-2008 from http://www.nas.nasa.gov/About/Education/SpaceSettlement/designer/magneto.gif

Baylor College of Medicine