Radium... headache

["J. J. Rozental" <josrozen@netmedia.net.il>]

To Peter.Darnell%EM@em.doe.gov

  "There are possible medical uses for this radium however, the chemical 
   and mechanical separation process required to retreive the radium make 
   it extremely expensive.  I am not familar enough with medical HP to 
   provide more details".

The main producers stopped production of radium in the 1960s, 
Only countries with little or any infrastructure organization still use old
sources, like radium in medicine and industrial application.

To Chris alston
ccja@aol.com
"Dirt has, nominally, 1 pCi/gm radium".

The Clearance level proposal for Ra-226 is in te range of concentration of
0.1 to <1.0 Bq/g (representative single value of 0.3 Bq/g) - Clearance
levels for radionuclides in solid materials - Interim report for comment -
IAEA-TECDOC-855, January 1996                                            
=======
To all,

No doubt:
Ra-226,  greatest headache . Geological repository is necessary... but such
a repository does not yet exist anywhere in the world...and probably will
not be in operation for some decades.