ICRP Publication 92 : Relative Biological Effectiveness (RBE), Quality Factor (Q), and Radiation Weighting Factor (wR)

ICRP Publication 92 : Relative Biological Effectiveness (RBE), Quality Factor (Q), and Radiation Weighting Factor (wR)

Description

The effect of ionising radiation is influenced by the dose, the dose rate, and the quality of the radiation. Before 1990, dose-equivalent quantities were defined in terms of a quality factor, Q(L), that was applied to the absorbed dose at a point in order to take into account the differences in the effects of different types of radiation. In its 1990 recommendations, the ICRP introduced a modified concept. For radiological protection purposes, the absorbed dose is averaged over an organ or tissue, T, and this absorbed dose average is weighted for the radiation quality in terms of the radiation weighting factor, wR, for the type and energy of radiation incident on the body. The resulting weighted dose is designated as the organ- or tissue-equivalent dose, HT. The sum of the organ-equivalent doses weighted by the ICRP organ-weighting factors, wT, is termed the effective dose, E. Measurements can be performed in terms of the operational quantities, ambient dose equivalent, and personal dose equivalent. These quantities continue to be defined in terms of the absorbed dose at the reference point weighted by Q(L).

Similar Books

ISBN 10: 009957506X
ISBN 13: 9780099575061

05 Apr 2018
Robert M. Sapolsky

ISBN 10: 1474613403
ISBN 13: 9781474613408

05 Sep 2019
Caitlin Doughty

ISBN 10: 1780723040
ISBN 13: 9781780723044

18 May 2017
Michael Mosley

ISBN 10: 1784700177
ISBN 13: 9781784700171

18 Oct 2017
Ed Yong

ISBN 10: 1925228606
ISBN 13: 9781925228601

03 Aug 2016
Giulia Enders

ISBN 10: 1400052181
ISBN 13: 9781400052189

08 Mar 2011
Rebecca Skloot

ISBN 10: 0099302780
ISBN 13: 9780099302780

26 Apr 2000
Jared Diamond

ISBN 10: 0198393512
ISBN 13: 9780198393511

30 Sep 2014
Andrew Allott

ISBN 10: 1107604664
ISBN 13: 9781107604667

29 Mar 2012
Erwin Schrodinger

ISBN 10: 1621823555
ISBN 13: 9781621823551

31 May 2020
Kim Newton

ISBN 10: 0815345372
ISBN 13: 9780815345374

02 Mar 2020
Ron Milo

ISBN 10: 1439837171
ISBN 13: 9781439837177

03 Aug 2019
Uri Alon