[ RadSafe ] ISS radiation exposure

Jaro Franta jaro_10kbq at videotron.ca
Mon Oct 31 15:35:37 CDT 2011

I was trying to find this information earlier this year.

The SRAG site is a good start.

But after reading a bunch reports, I found that not only does the dose rate
change over the years -- between solar minimum and solar maximum -- but
apparently it also varies quite a bit between the different modules that
were supplied to the ISS by different countries, and also varies between
places where astronauts work (including outside ISS) and where they sleep.

This is a bit beside the point, but the goal of my search was to complete an
illustration of dose-versus-altitude, all the way from sea level to the ISS,
and to use it in a short article discussing the mis-use of LNT calculations
- for instance the global impact of the extra population dose due to
high-heel shoes (7cm higher altitude, in the example).
The article is based on an idea first proposed by our Polish colleagues, but
includes citations from Canadian and French radiation protection and
regulatory authorities, just to add some local interest.....

Large version of illustration: http://tinyurl.com/3gnkar7  
Link to article on facebook, in French: http://tinyurl.com/3ekhzao

Good luck with your search -- and please keep us informed if you find
anything interesting.


-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Joseph Shonka
Sent: October-31-11 2:39 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: [ RadSafe ] ISS radiation exposure

I would like to know if the current and historical radiation exposure rates
on board the International Space Station are on the web somewhere.  I
believe that exposures to personnel are 0.1 to 0.2 Sv per 6 months
routinely, but am curious about the exposure rates during the recent
coronal mass ejection (CME) that produced northern lights visible in the
southern US (a rare occurrence).  I was told by a solar expert (Jan
Alvestad) that "The increased radiation levels were not because of the CME,
rather a minor M class proton flare at the northwest limb of the Sun. This
event occurred several hours after the event which produced the CME".
Any link to more information would be appreciated.

Joseph J. Shonka, Ph.D.
Shonka Research Associates, Inc.
5199 Sandlewood Court
Marietta, GA 30068

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