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韧致辐射法同时测量90Sr和90Y
示踪剂 韧致辐射 Sr-Y 二(2-乙基已基)磷酸
2009/12/24
本工作提出了用韧致辐射法同时测量样品中90Sr和90Y的设想。采用二(2-乙基已基)磷酸萃取制备无90Y的90Sr溶液，应用阱型NaI(Tl)探测器进行跟踪测量，得到90Sr与90Y探测效率比k。根据k值，跟踪测量未知样品，可以得到样品中90Sr和90Y的量。因此可以直接用90Sr -90Y作为Y的示踪剂。
The total amounts of Sr and 137 CS that accumulated in the water of the
Baltic Sea in the years 1960-67 are estimated on the basis of 10-15 samples
collected annually in different parts of the Balti...
Determination of 90Sr Accumulation in Human Teeth
Tooth 90Sr 90Y Calcium Flame atomic absorption spectrometer
2010/4/21
The accumulation of 90Sr in decayed or exfoliated human teeth was investigated by ultra low level beta counting. Fuming nitric acid and the necessary carriers and reagents were used for dissolving the...
Beta Spectrometers with Surface Barrier Detector and Plastic Scintillator: Applications to 90Sr,204Tl,210Pb and 14C
Beta Spectrometers Plastic Scintillator Surface Barrier Detector
2010/4/15
In this work, a comparison of responses between a spectrometer using Si Surface Barrier Detector (Si SBD) and a spectrometer using Plastic Scintillator (PS) is given. Experimental pulse height spectra...