??electronic radon monitor systems (fwd)

[Bruce Busby <bbusby@umich.edu>]

Hi All, 

Trying to condense three posts into one, here is a question on radon
monitoring systems. Please respond to the E-mail address below.


Next, there is a news clip, that was related to a topic recently, Pu and
space vehicles. Thought some of you might have missed it.


-bruce busby
bbusby@umich.edu


---------- Forwarded message ----------
From: Brian Sult <brian@dwx.com>
To: bbusby@umich.edu
Subject: electronic radon monitor systems

Does any company offer a Continuous Radon Monitor or electronic radon
monitor systems, that is EPA approved? If so please email brian@dwx.com.

Thanks
-Brian
E-mail: brian@dwx.com 


-------------NewsClip&paste-------------------------------------

CAPE CANAVERAL, Fla (Reuter) - About 100 people gathered  
 Sunday at the gates of Cape Canaveral Air Station in Florida in 
 a peaceful protest against NASA's plans to launch a 
 nuclear-powered space probe to the planet Saturn. 
 	 The protesters said the Cassini probe would scatter  
 plutonium over a wide area of Florida and kill thousands of 
 people if its rocket exploded during launch. They said millions 
 could be effected worldwide if the probe plunged into the 
 atmosphere when it passes close to the Earth during its 
 seven-year voyage to Saturn. 
 	 An environmental impact study released by NASA in 1994 put  
 the risk of the probe hitting Earth during its fly past in 1999 
 as 1 in 1.3 million and said there was a 1 in 900 chance of 
 radioactive release during launch. 
 	 ``They just don't think it's going to happen and I think a  
 scientific fraud is being perpetuated,'' said one of the 
 protesters, Michio Kaku, a professor of nuclear physics at the 
 City University of New York. ``They have cooked the numbers.'' 
 	 Cassini is powered by three radioisotope thermoelectric  
 generators, which contain a total of 73 pounds of 
 non-weapons-grade plutonium. The cylindrical devices produce 
 electricity from heat generated by the natural decay of the 
 radioactive element. 
 	 ``We will all be there with our families at the launch,''  
 said Richard Spehalski, Cassini program manager at NASA's Jet 
 Propulsion Laboratory in California. ``I wouldn't be involved 
 with the project if I didn't think it was safe.'' 
 	 The protesters complained NASA has not given enough  
 consideration to using alternative power sources, but the space 
 agency said solar cells capable of powering the probe at Saturn, 
 which is 888 million miles from the sun, do not exist. 
 	 The $3.4 billion Cassini spacecraft is scheduled for launch  
 from Cape Canaveral in October 1997 atop a Titan 4, the most 
 powerful U.S. unmanned rocket. It is due to arrive at the ringed 
 planet in July 2004. 
 	 Cassini will orbit Saturn sending back data and pictures for  
 about four years. It will release a small probe, built by the 
 European Space Agency, to descend into the atmosphere of 
 Saturn's largest moon, Titan.