Wet-chemistry method for the separation of no-carrier-added At/Po from Bi target irradiated by alpha-beam in cyclotron

We present a fast and effective wet-chemistry method, used to obtain the pure alpha-emitter At/Po (T 1/2 = 7.214 h/516 ms), produced by Bi(alpha,2n) reaction in NCA form. It is a selective radiochemical separation of the At radionuclides from the target and the impurities, characterized by a radionu...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2008-06, Vol.276 (3), p.819-824
Main Authors: Zona, C, Bonardi, M L, Groppi, F, Morzenti, S, Canella, L, Persico, E, Menapace, E, Alfassi, Z B, Abbas, K, Holzwarth, U, Gibson, N
Format: Article
Language:English
Online Access:Get full text
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Summary:We present a fast and effective wet-chemistry method, used to obtain the pure alpha-emitter At/Po (T 1/2 = 7.214 h/516 ms), produced by Bi(alpha,2n) reaction in NCA form. It is a selective radiochemical separation of the At radionuclides from the target and the impurities, characterized by a radionuclidic purity close to 100%, based on the dissolution and the dilution of the irradiated target in acidic medium, on the extraction with DIPE, followed by the back-extraction with NaOH. As a result, we obtain a yield greater than 90-97% in a range from 0.75M to 2.00M.
ISSN:0236-5731
DOI:10.1007/s10967-008-0638-2