[ RadSafe ] Thorium in gas lamps

JSBland at aol.com JSBland at aol.com
Wed Jun 21 19:25:27 CDT 2006

NUREG-1717 used 250 mg, or approximately 27 nCi or 1000 Bq.  This  value is 
based on a study by Luetzelschwab and Googins, HP Journal Vol. 46, No.  4 
(1994).  Hope this helps.
Stewart Bland

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