Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2008-03-28
Nucl.Instrum.Meth.A604:531-535,2009
Physics
Nuclear Physics
Nuclear Experiment
8 Pages, 2 figures and 2 tables
Scientific paper
10.1016/j.nima.2009.01.227
The existing hydrous titanium oxide (HTiO) technique for the measurement of 224Ra and 226Ra in the water at the Sudbury Neutrino Observatory (SNO) has been changed to make it faster and less sensitive to trace impurities in the HTiO eluate. Using HTiO-loaded filters followed by cation exchange adsorption and HTiO co-precipitation, Ra isotopes from 200-450 tonnes of heavy water can be extracted and concentrated into a single sample of a few millilitres with a total chemical efficiency of 50%. Combined with beta-alpha coincidence counting, this method is capable of measuring 2.0x10^3 uBq/kg of 224Ra and 3.7x10^3 uBq/kg of 226Ra from the 232Th and 238U decay chains, respectively, for a 275 tonne D2O assay, which are equivalent to 5x10^16 g Th/g and 3x10^16 g U/g in heavy water.
Aharmim B.
Cleveland Bruce T.
Dai Xian-Xin
Doucas George
Farine J.
No associations
LandOfFree
High sensitivity measurement of 224Ra and 226Ra in water with an improved hydrous titanium oxide technique at the Sudbury Neutrino Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High sensitivity measurement of 224Ra and 226Ra in water with an improved hydrous titanium oxide technique at the Sudbury Neutrino Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High sensitivity measurement of 224Ra and 226Ra in water with an improved hydrous titanium oxide technique at the Sudbury Neutrino Observatory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-174280