RE: Exposure and Irradiation: Cause and Effect

["Strom, Daniel J" <strom@PNL.GOV>]

Jose,



If you read my article, you will understand why the phrase "internal exposure" is an oxymoron. All ionizing radiation energy of relevance to health is deposited or absorbed internally, whether the source is external or internal. The fact that the IAEA has continued to use the phrase "internal exposure" is not persuasive. 



I have no difficulty with the phrase "exposure pathways."



- Dan Strom



The opinions expressed above, if any, are mine alone and have not been reviewed or approved by Battelle, the Pacific Northwest National Laboratory, or the U.S. Department of Energy.



Daniel J. Strom, Ph.D., CHP

Environmental Technology Directorate, Pacific Northwest National Laboratory

Mail Stop K3-56, PO BOX 999, Richland, Washington 99352-0999 USA

Overnight: Battelle for the U.S. DOE, 790 6th St., Richland WA 99352 ATTN: Dan Strom K3-56

Telephone (509) 375-2626 FAX (509) 375-2019 mailto:strom@pnl.gov

Brief Resume: http://www.pnl.gov/bayesian/strom/strombio.htm

Pagemaster for  http://www.pnl.gov/bayesian   http://qecc.pnl.gov   http://bidug.pnl.gov





-----Original Message-----

From: joseroze@netvision.net.il [mailto:joseroze@netvision.net.il]

Sent: Tuesday, August 05, 2003 1:27 PM

To: Strom, Daniel J; radsafe@list.vanderbilt.edu; Watson, Charles R;

ograabe@ucdavis.edu

Subject: RE: Exposure and Irradiation: Cause and Effect



Exposure, irradiation and contamination is  difficult to people understand

during an  emergency response, and this has happened in Goiania. 

The IAEA glossary mention:

Exposure 

 The act or condition of being subject to irradiation. Exposure can be

either external exposure (irradiation by sources outside the body) or

internal exposure (irradiation by sources inside the body). Exposure can be

classified as either normal exposure or potential exposure; either

occupational, medical or public exposure; and, in intervention situations,

either emergency exposure or chronic exposure. The term exposure is also

used in radiodosimetry to express the amount of ionization produced in air

by ionizing radiation (see Average mammary glandular dose). 

 Exposure pathways 

 The routes by which radioactive material can reach or irradiate humans. 



Jose Julio Rozental

joseroze@netvision.net.il

Rio de Janeiro until Sept 02/03



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