A NEW METHOD FOR DETERMINATION OF RN-222 AND RN-220 IN GEOTHERMAL STEAM

Authors
WHITEHEAD NE DITCHBURN RG
Citation
Ne. Whitehead et Rg. Ditchburn, A NEW METHOD FOR DETERMINATION OF RN-222 AND RN-220 IN GEOTHERMAL STEAM, Journal of radioanalytical and nuclear chemistry, 207(2), 1996, pp. 313-324
Citations number
28
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
207
Issue
2
Year of publication
1996
Pages
313 - 324
Database
ISI
SICI code
0236-5731(1996)207:2<313:ANMFDO>2.0.ZU;2-I
Abstract
The radionuclides Rn-222 and Rn-220 are measured by incorporating thei r daughters Pb-214 and Pb-212 in a very thin layer of PbS and accumula ting the alpha spectrum of their daughter products Po-214 and Po-212. The median yield was measured as 88% using a known amount of Pb-210 tr acer. A single fumarole and all 23 geothermal wells tested were found to contain Rn-220. As isotopes of Th, Bi, Po and Ra, are also absorbed in the PbS layer, the method can be used for determinations of these in tap-water.