Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

Measurment of 90Sr in Coal Fly Ash and Evaluation of Data by IAEA

Document Type : Research Paper

Authors

M Aliabadi
J Amidi
Abstract
An improved method for measurment of 90Sr was based on Tributylphosphate (TBP) extraction of the radio-Yttrium and oxalate precipitation to remove bulk Potassium. The Cerenkov radiation produced by the high energy beta emission of 90Y was measured with 1220 Quantulus liquid scintillation spectrometer. The minimum detectable concentration (MDC) was 0.0053 Bq for 180 minute and 95% confidence level  90Sr activity concentration in mineral samples was from 0.0192 to 0.193 Bq.

Highlights

1.  B. Carmen, “The use of Cerenkov radiation for the assay of radiostrontium in aqueous  solution,” Int. App1. Radiat. Isot. 30, 97-100 (1979).

 

   2.   S. Zhu, A. Ghods, J. C. Veselsky, A. Mirna and R. Schelenz, “Interference of 91Y with the rapid determination of 90Sr originating from the Chernobyl fallout debris,” Radiochemical Acta 51, 195-198 (1990) .

 

    3.  N. Vajda, A. Ghods, E. Cooper, P. R. Danesi,  “Determination of radiostrontium in soil samples using a Crown Ether,” Journal of Radioanalytical and Nuclear chemistry,

 

 

 
   

 


Articles, 162, No.2 307-323 (1992).

 

 

  1. J.  J.  Larosa, E.  L.  Cooper, A.  Ghods, V.  Jansta, M. Makarewicz, S. Shawky, N. Vajda, “Radiochemical methods used by the IAEA, s laboratories at Seibersdorf for the determination of 90Sr, 144Ce and Pu  radionuclides in environmental samples collected for the international Chernobyl project,” J. Environ. Radioactivity. 17, 183-209 (1992).

     

5.  J. Kragten, “Calculating standard deviation and confidence intervals with a universally       applicable spreadsheed technique,” Analyst, 119, 2161-2165 (1994).

Keywords

90Sr measurement
Yttrium
cerenkov radiation

  1. 1.  B. Carmen, “The use of Cerenkov radiation for the assay of radiostrontium in aqueous  solution,” Int. App1. Radiat. Isot. 30, 97-100 (1979).

     

       2.   S. Zhu, A. Ghods, J. C. Veselsky, A. Mirna and R. Schelenz, “Interference of 91Y with the rapid determination of 90Sr originating from the Chernobyl fallout debris,” Radiochemical Acta 51, 195-198 (1990) .

     

        3.  N. Vajda, A. Ghods, E. Cooper, P. R. Danesi,  “Determination of radiostrontium in soil samples using a Crown Ether,” Journal of Radioanalytical and Nuclear chemistry,

     

     

     
       

     


    Articles, 162, No.2 307-323 (1992).

     

     

    1. J.  J.  Larosa, E.  L.  Cooper, A.  Ghods, V.  Jansta, M. Makarewicz, S. Shawky, N. Vajda, “Radiochemical methods used by the IAEA, s laboratories at Seibersdorf for the determination of 90Sr, 144Ce and Pu  radionuclides in environmental samples collected for the international Chernobyl project,” J. Environ. Radioactivity. 17, 183-209 (1992).

       

    5.  J. Kragten, “Calculating standard deviation and confidence intervals with a universally       applicable spreadsheed technique,” Analyst, 119, 2161-2165 (1994).

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