[ RadSafe ] Leukemia and Ionizing Radiation Revisited

[Brennan, Mike (DOH)]

Hi, Pat.

I agree: the survivors of the blasts at Hiroshima and Nagasaki were exposed to a gamma dose, but not exposed to contamination.  However, the data from the survivors has been used as the basis for quantifying risk from ionizing radiation exposure, including exposure form sources very different from a big flash of gamma.  I think in many cases conclusions from survivor data has been applied to other kinds of exposure not because it was a good fit, but because it was easy.  If, as this paper claims, the conclusions from the survivor data are flawed, this makes the application to other types of exposure doubly suspect.  

Could be an interesting year.  I hope everyone brings their best game, and may the evidence decide.  

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of McCloskey, Pat
Sent: Thursday, December 31, 2015 3:03 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Leukemia and Ionizing Radiation Revisited

Mike

I don't think there would be any residual contamination after a gamma dose. I must be missing something

Pat McCloskey

> On Dec 31, 2015, at 5:55 PM, Brennan, Mike (DOH) <Mike.Brennan at DOH.WA.GOV> wrote:
> 
> ________________________________
> 
> ***ATTENTION: This message originates outside of the ORAU/ORISE 
> network.*** ________________________________
> 
> A question: what are your thoughts concerning exposure that instead of one-time is ongoing, potentially for decades.  In particular, I am thinking of exposure to the lungs due to radon, where the majority of the dose is due to alpha decays in the lungs themselves, and the exposure fluctuates with the concentrations of radon and radon decay products that are inhaled?
> 
> Note that I am not arguing with this paper (though I would like to see comments from people more conversant than I am on this topic); I am wondering if one-time whole-body exposure from gamma is a reasonable basis for evaluating ongoing exposure to specific organs due to internal contamination.
> 
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu 
> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Brooks, 
> Michael
> Sent: Thursday, December 31, 2015 1:24 AM
> To: radsafe at health.phys.iit.edu
> Subject: [ RadSafe ] Leukemia and Ionizing Radiation Revisited
> 
> Hot off the press:
> 
> http://www.esciencecentral.org/journals/leukemia-and-ionizing-radiatio
> n-revisited-2329-6917-1000202.pdf
> 
> Tweeted by Rod Adams (@Atomicrod), but looks interesting, so I am re-posting it here.
> 
> Regards and Happy New Year (shortly)
> 
> Michael
> 
> Michael Brooks, PhD
> Head of Diagnostic Radiology Physics
> Medical Physics Department
> Poole Hospital NHS Foundation Trust
> Longfleet Road
> Poole
> UK
> 
> DISCLAIMER: This email and any files transmitted with it are confidential and intended solely for the use of the individual, individuals or entity to whom they are addressed.  Any views or opinions expressed are those of the author and do not necessarily represent the views of Poole Hospital NHS Foundation Trust unless otherwise explicitly stated.  This email may contain confidential and/or privileged materials. In the case of confidential and/or privileged materials, any review, retransmission, dissemination or other use of these materials by individuals or entities other than the intended recipient may be the subject of legal action. If you receive an email in error from Poole Hospital NHS Foundation Trust, please contact the sender and delete the material from your computer.
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