[ RadSafe ] Article by Vincent Giuliano on "Radiation Hormesis"
jerrycuttler at rogers.com
Thu Jan 31 00:10:08 CST 2013
Victor et al.
For "the new radiation safety standard," I recommend reverting to the ICRP standard that was accepted in the early 1930s; i.e. use the concept of a safe tolerance dose of 0.2 Roentgen/day, which is equivalent to about 680 mGy/year. It provided adequate protection to the radiologists for at least two decades and would still be satisfactory today for radiation workers. The total-body acute dose limit for radiologists (radiation workers) should be 150 mGy.
There was no scientific justification to change the radiation protection concept in the mid-1950s. That was done for the political purpose of stopping the development and testing of nuclear weapons.
I volunteer to help solve this problem.
jerrycuttler at rogers.com
From: Victor Anderson <victor.anderson at frontier.com>
To: 'The International Radiation Protection (Health Physics) MailingList' <radsafe at health.phys.iit.edu>
Cc: "'Miller, Mark L'" <mmiller at sandia.gov>; 'Jerry Cuttler' <jerrycuttler at rogers.com>; 'Dobrzynski Ludwik' <Ludwik.Dobrzynski at ncbj.gov.pl>; "'Payne,Steven S.'" <Steven.Payne at nnsa.doe.gov>
Sent: Tuesday, January 29, 2013 2:59:29 PM
Subject: RE: [ RadSafe ] Article by Vincent Giuliano on "Radiation Hormesis"
The evidence for hormesis is certainly there. I too believe that LNT
is no longer a viable basis for radiation safety. Being an ex-regulator,
for me the next big question is placing some numerical values on radiation
safety standards. Given that X Gy of dose will not cause any harm, should
that be the new radiation safety standard? This brings as least two
questions to mind: 1) Given biological variability, what is a safe upper limit?
and 2) How does the new standard work for different types of radiation, rates (gy/y,
gy/hr?), mode of delivery? We also need to look at a new unit as the
Sievert and REM were both pegged to probability of death by cancer. So,
if say 1 cGy of gamma radiation has no risk of cancer, then the risk based dose
is zero (0 cSv). Suppose there is a region where there is some protective
benefit mixed with some chance of harm? A fine kettle of fish. The reason
I ask is that the next step is to petition the NRC for a rule change. The
bigger question is what kind of rule change? With this is mind, I would
propose an an hoc committee to work on this problem. Any takers? If
so, please e-mail me.
Victor Anderson, CHP
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Scott, Bobby
Sent: Tuesday, January 29, 2013 11:10 AM
To: The International Radiation Protection (Health Physics) MailingList
Cc: Miller, Mark L; Jerry Cuttler; Dobrzynski Ludwik; Payne,Steven S.
Subject: [ RadSafe ] Article by Vincent Giuliano on "Radiation
I came across an interesting 7 September 2012 article on the web by
Vincent Giuliano titled "Radiation Hormesis." The link
for the article
I thought some of you may like to know about the article.
B. R. Scott
Lovelace Respiratory Research Institute
2425 Ridgecrest Drive SE
Albuquerque, NM 87108 USA
E-mail: bscott at LRRI.org <mailto:bscott at LRRI.org>
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