[ RadSafe ] It's the ICRP recommendations! Fukushima workers versus ISS astronauts ?

Jerry Cuttler jerrycuttler at rogers.com
Fri Mar 25 21:09:50 CDT 2011


The Japanese are likely following ICRP/IAEA rad protection guidelines.

"Based upon human data, a single whole-body dose of 150 mSv (15 rem) is 
safe. The high natural radiation level of 700 mSv per year (70 rem/year), 
corresponding to a 70-year lifetime dose of 49 Sv in Ramsar, Iran, is also 
safe. Both these single and continuous doses are also beneficial (Cuttler 
and Pollycove 2009). This conclusion is applicable to humans of all ages and 
to sensitive, cancer-prone individuals."

In the 1990s, Japanese oncologists (Dr. Sakamoto) used total-body, low-dose 
irradiation therapy on hundreds of patients with good results.  This TB LDI 
treatment applies acute exposures of 100 mSv, three times a week for 5 weeks 
(1500 mSv total), to stimulate a patients defences against cancer.  The rad 
protection folks intervened and these treatments were stopped.


----- Original Message ----- 
From: "Franta, Jaroslav" <frantaj at aecl.ca>
To: <radsafe at agni.phys.iit.edu>; <cdn-nucl-l at mailman1.CIS.McMaster.CA>
Sent: Friday, March 25, 2011 9:57 AM
Subject: [cdn-nucl-l] Fukushima workers versus ISS astronauts ?

> Does anybody know why Fukushima Dai-ichi workers exposed to doses in the 
> range of 100 mSv (10 rem) are being sent to hospital, while extended 
> residence astronauts on board the International Space Station (ISS), who 
> get up to several times that dose, are not ?
> Thnx
> Jaro
> ^^^^^^^^^^^^^^^^^^^^

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