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Gross alpha-activity estimation in simulated high level waste after actinides partitioning by solid state nuclear track detection

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Abstract

The estimation of low level alpha activity is difficult in waste samples containing large concentration of salts and beta–gamma activity. In the present study, the feasibility of gross alpha-activity measurement for simulated high level waste (SHLW) in solution medium by alpha-track registration technique has been attempted. The results showed that it is possible to use this technique for gross alpha-activity estimation of ~200 Bq/mL in solution medium with a precision and accuracy of ~30%. The importance of measuring 200 Bq/mL alpha activity in SHLW solutions is that this value corresponds to about 4,000 Bq/g activity in the solid medium which is the safe disposable limit. The advantage of this method over other methods is that it is not sensitive to beta–gamma emitters and salts and is very simple and inexpensive.

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Authors and Affiliations

  1. Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India

    Chhavi Agarwal, P. C. Kalsi, D. R. Prabhu, P. N. Pathak & V. K. Manchanda

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  1. Chhavi Agarwal
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  2. P. C. Kalsi
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  3. D. R. Prabhu
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  4. P. N. Pathak
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  5. V. K. Manchanda
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Correspondence to Chhavi Agarwal.

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Agarwal, C., Kalsi, P.C., Prabhu, D.R. et al. Gross alpha-activity estimation in simulated high level waste after actinides partitioning by solid state nuclear track detection. J Radioanal Nucl Chem 287, 749–752 (2011). https://doi.org/10.1007/s10967-010-0817-9

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  • DOI: https://doi.org/10.1007/s10967-010-0817-9

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