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RE: A Radiation safety item from WHAT'S NEW
Sue,
As a side note. I remember reading an article that if a nuclear engine was
used, the trip could be shortened to less 6 months. That would reduce the
total exposure and reduce the number of solar storms the astronauts would be
caught in. I assume it would be an impulse drive that would deliver
continual acceleration.
The statement that we have no data on high-Z, high energy radiation since we
made ten trips to or around the moon.
-- John
John Jacobus, MS
Certified Health Physicist
3050 Traymore Lane
Bowie, MD 20715-2024
E-mail: jenday1@email.msn.com (H)
-----Original Message-----
From: Susan Gawarecki [mailto:loc@ICX.NET]
Sent: Friday, December 07, 2001 5:18 PM
To: RADSAFE
Subject: A Radiation safety item from WHAT'S NEW
A Radiation safety item from WHAT'S NEW
By Robert L. Park Friday, 07 Dec 01 Washington, DC
<< 2. SPACE TRAVEL: THERE ARE A FEW HEALTH PROBLEMS TO DEAL WITH.
NASA is making plans for a human mission to Mars in 2014 that
would take 30 months. At the request of NASA, a committee of the
Institute of Health has examined the health issues surrounding
long-duration space missions outside Earth's magnetosphere ("Safe
Passage," National Academy Press, Washington, DC 2001, $80). The
greatest risk is radiation exposure. There are no data on
effects of the high-Z, high-energy particles that flood space and
no suitable experimental facilities on Earth. Nor is there any
way to predict solar outbursts with much higher radiation levels.
Loss of bone density in zero gravity is so severe and NASA's
"countermeasures" so marginally effective, that a mission to Mars
with humans is unlikely to be undertaken unless a biological
solution is found. Most surprising was the importance the report
gives to the risk of psychological and social stress.
THE AMERICAN PHYSICAL SOCIETY and THE UNIVERSITY OF MARYLAND
Opinions are the author's and are not necessarily shared by the
American Physical Society or the University, but they should be.>>
--
.....................................................
Susan L. Gawarecki, Ph.D., Executive Director
Oak Ridge Reservation Local Oversight Committee
Please visit our Web site - http://www.local-oversight.org
.....................................................
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