Kuo CL, Tsai TL, Chang-Liao KS, Chao JH. Development of separation techniques for analysis of Nb-94 in radwaste samples.
Appl Radiat Isot 2017;
128:165-170. [PMID:
28728069 DOI:
10.1016/j.apradiso.2017.07.016]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/21/2017] [Accepted: 07/10/2017] [Indexed: 11/20/2022]
Abstract
A chemical separation technique for removing interfering gamma-ray radionuclides by combined precipitation of Nb pentoxide and anion exchange was proposed, thereby allowing detection of trace 94Nb in low-level radwastes. The detection limit for 94Nb was improved by a factor of 10-103, and the scaling factor (94Nb/60Co) of the radwastes was estimated to be less than 10-5. This technique can be used for low-level radwaste classification and power reactor decommissioning.
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