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RE: Half-life of Ra-228



The National Nuclear Data Center gives 5.75 y.  This may be accessed at
http://www.nndc.bnl.gov/nndc/nudat/ <http://www.nndc.bnl.gov/nndc/nudat/> 
choose "wallet cards" for the quickest access.
Bill Goldsmith
Radian International LLC
423-220-8265
FAX 423-483-9061
Bill_goldsmith@radian.com <mailto:Bill_goldsmith@radian.com> 



		-----Original Message-----
		From:	Koperski, George [mailto:george.koperski@iluka.com]
		Sent:	September 14, 1999 05:07
		To:	Multiple recipients of list
		Subject:	Half-life of Ra-228

		Dear Radsafers

		What is the correct value of the half-life for Ra-228 ?
		I have been consistently encountering two values: 5.75 years
and 6.7 years.
		Which one is right ? Thank you

		george.koperski@iluka.com
	
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