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[cdn-nucl-l] Radiation from the Sun & Fred on ISS [FW]
From: Larry Kellogg [mailto:firstname.lastname@example.org]
Sent: Friday May 04, 2001 6:38 PM
Cc: Larry Kellogg
Subject: Space Radiation
Radiation from the Sun has been in the news and we have posted some
of those items. From that there have been questions about the
hazards of going to the Moon through the Van Allen Radiations belts
and what are the dangers for those on the International Space Station.
This week NASA Science News for May 4, 2001 has an article about an
unusual space traveler named Fred who is orbiting Earth on board the
International Space Station. His job? To keep astronauts safe from
Fred is the Phantom Torso, an approximately 95-pound, 3 foot high
mockup of a human upper body. Beneath Fred's artificial skin are real
bones. Fred's organs -- the heart, brain, thyroid, colon and so on --
are made of a special plastic that matches as closely as possible the
density of human tissue.
The STORY at
We mentioned that Earth is protected from a lot of the Sun's furry by
Earth's Magnetosphere but that it dips down over Brazil. And from
Dr. Tony Phillips web page you will see that the ISS spends about 20
minutes going through this hot spot every 90 minute orbit.
More on Space Radiation -
California Institute of Technology Space Radiation Laboratory
Space Radiation Environmental Effects
The links to Marshall are stale but the link for NASA RP-1350 a 724K
PDF file is good and it is a 30 page text on The Natural Space
Environment: Effects on Spacecraft
If you go to Marshall's web page - http://www.msfc.nasa.gov/ and plug
in "The Natural Space Environment: Effects on Spacecraft" on their
search engine you will have many pages of interesting things Marshall
is doing - just in case you have lots of time for browsing. LRK
For you in the Field of Nuclear Radiation - a conference coming up.
THE NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE
The 2001 IEEE Nuclear and Space Radiation Effects
Conference (NSREC) will be held in Vancouver, British Columbia
(Canada) at the Westin Bayshore Hotel on July 16-20, 2001. This
annual meeting of engineers and scientists presents the latest
techniques for enhancing the performance of microelectronic devices
and circuits that are used in radiation environments.
The majority of research papers presented at NSREC are published in
the December issue of the IEEE Transactions on Nuclear Science.
Space Radiation Storm back in July of 2000
A powerful solar flare on July 14th has triggered an ongoing
radiation storm around our planet. The eruption also sent a
fast-moving coronal mass ejection toward Earth. Aurora sightings may
be possible this weekend.
We have seen more of these this year and you might want to take a
look at their archive page
http://science.nasa.gov/headlines/news_archive.htm or just start
with their home page http://science.nasa.gov/default.htm
I'll have to go back and find what was happening during the Lunar
Prospector mission in 1998 and 1999 - all those high energy gamma ray
bursts and some Solar activity too. hmmmmmmmmmmm Shall we replay
some of the Spectrometer Data on the Lunar Prospector web site? I
seem to remember a couple of wild hair days. LRK
OVER THE LIMB: Giant sunspot 9393 rotated over the Sun's western limb
earlier this week, but all signs of the spot have not yet vanished.
This x-ray image captured on May 4th by the Japanese Yohkoh satellite
shows loops of million-degree gas confined by magnetic fields arcing
high above the spot. The circled region in this image measures
approximately 25 Earth diameters!
WEB LINKS: NOAA FORECAST http://www.sec.noaa.gov/forecast.html
| GLOSSARY http://www.hao.ucar.edu/public/education/glossary.html
| SPACE WEATHER TUTORIAL http://science.nasa.gov/ssl/pad/sppb/edu/
| LESSON PLANS http://www.thursdaysclassroom.com/
In case you missed the previous post -
You might also be interested in taking a look at Earth's Magnetosphere.
Folding Paper Model of the Magnetosphere
And more on Magnetospheres
And a note: We will be tracking Pioneer 10 this week end - results to
be announced. :-) LRK
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Larry R. Kellogg