RE: Radium 226 by gamma spec analysis

[Sonter Mark <sonterm@EPA.NSW.GOV.AU>]

 "Closed Can Gamma Counting Technique for Radium Estimation" or similar, I

think authors might have been Austin and Droullard.... Date late 60's or

early 70's??  Droullard was at US Bureau of Mines I think, at Denver

Technical Centre.



Mark Sonter

Radiation Control Section

NSW Environmental Protection Authority

Fax +61 2 9995 6603

Phone +61 2 9995 5974





	-----Original Message-----

	From:	Erik Nielsen [SMTP:enielsen@antechltd.net]

	Sent:	Thursday, 13 December 2001 3:33

	To:	RADSAFE@list.vanderbilt.edu

	Subject:	Radium 226 by gamma spec analysis



	I am trying to find a reference citation for the rather common

analytical technique of canning a soil sample, waiting 21 days and counting

by gamma spectroscopy for the Bi-214 and Pb-214 daughters of the Rn-222 at

equilibrium.

	

	A regulator needs some sort of government citation of this method

prior to approval.

	

	I know there was a citation in USGS publications where this method

was used to analyze mill tailings for Ra-226.

	

	Of course any online references would be preferred but can use any

ideas that anyone has.

	



	Erik C. Nielsen

	Senior Radiochemist

	

	Antech Ltd., Waltz Mill Laboratory

	P.O. Box 158, Bldg G, M/S 62

	Madison, PA 15663

	

	mailto:enielsen@antechltd.net

	

	 <mailto:enielsen@antechltd.net> (V) 724-722-5214

	(F) 724-722-5208

	

	

	

	

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