Today: 22.Sep.2017

Howard Cork Hayden, Emeritus Physics Professor, University of Connecticut: The article in Nuclear News (Sept. 17, 2017) by Jerry M. Cuttler and William H. Hannum about the linear-no-threshold (LNT) model shows that not only are the no-threshold and collective dose aspects wrong, but that low-dose radiation has beneficial effects. For almost all cases, the Linear No-Threshold and Collective Dose radiation safety guidelines are based entirely on the notion that exposure is an additive quantity. It is not. To read the article by Dr. Cuttler and Dr. Hannum use the search box on this website and enter "Cuttler Hannum LNT".

Published in Radiation

Jerry Cuttler, Ph.D. Nuclear Sciences and Engineering, past president of Canadian Nuclear Society. William Hannum, Ph.D. retired Argonne National Laboratory, (reactor physics and safety, former Deputy Director General of the OECD Nuclear Energy Agency, Paris, France): Current EPA regulations are based on the linear no-threshold (LNT) dose-response model. These regulations have long been considered to be conservative, and it is widely recognized that they are excessively restrictive. There is emerging evidence that the effects of low or even moderate levels of ionizing radiation are in fact beneficial. Researchers are now postulating that rather than being a simple cause of additional cell damage, the principal effect of low-level radiation is to stimulate the body’s natural defense mechanisms — for instance, against cancer cells. To see discussion on this article go to the search box on this website and enter "Hayden LNT".

Published in Radiation

Howard Cork Hayden, Emeritus Physics Professor, University of Connecticut: The most common question people bring up with respect to nuclear power is, “What do you do with the waste?” The answer requires discussion of three broad topics: the nature of uranium fission, radiation shielding, and the relationship between radiation and health. The first section is about the nature and the quantity of the high-level radioactive byproducts of uranium fission. This so-called “waste” from a nuclear reactor is different from the waste from burning coal. The second section discusses the nature of shielding and its effectiveness. The third section presents a simple mathematical proof that there is nothing inherently additive about radiation exposure.

Published in Energy Tomorrow

Wade Allison, Emeritus Professor of Physics, Oxford University, UK: Bottom up, on radiation and nuclear energy we need a fresh programme of science-wide public education in schools and in the community as a whole via the media, omitting the ghoulish images used in the past. Local UK-based initiatives should contribute to worldwide re-education, for example through the BBC. Top down, on radiation safety we need a complete sea change in international guidance. This should be based on scientific understanding and evidence, not the unjustified precaution inherent in the ALARA/LNT philosophy.

Published in Radiation
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