Samar, Amjed N, Naz A, Wajid AM, Eman M, Saeed MA, Ahmad I. Evaluation of the low energy cyclotron production of the gamma emitters
107Cd and
109Cd.
Appl Radiat Isot 2024;
217:111651. [PMID:
39754962 DOI:
10.1016/j.apradiso.2024.111651]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 12/19/2024] [Accepted: 12/20/2024] [Indexed: 01/06/2025]
Abstract
107Cd (T1/2 = 6.5 h) and 109Cd (T1/2 = 461.9 d) are promising non-standard gamma-emitting radionuclides with significant potential for SPECT use. For the optimized production of the said radionuclides, production routes namely 107Ag(p,n)107Cd, 107Ag(d,2n)107Cd, 109Ag(d,2n)109Cd, 109Ag(p,n)109Cd, 109Ag(p,3n)107Cd and 109Ag(d,4n)107Cd were critically analyzed. The nuclear model codes ALICE-IPPE, TALYS 1.9, and EMPIRE 3.2 were employed to check the consistency and reliability of the experimental data. A validated technique was then used to calculate recommended nuclear cross section values for each production route, considering both experimental data and theoretical modeling. The same approach was followed also for reactions leading to possible radioisotopic impurities. By using the recommended results, thick target yields were then calculated for each production route and corresponding impurity reactions. An optimum energy range for the high purity production with low energy cyclotron was at last suggested.
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