Vol. XXVI, No. 3, Pp. 181-274
UDC 621.039+614.876:504.06 ISSN 1451-3994
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Authors: Milad Enferadi, Mahdi Sadeghi, Fatemeh Bolourinovin
Yttrium-88 (T1/2=106.6 d, Iβ+=0.2% and Iec=99.8%) is used in mixed gamma efficiency calibration standards and also as a substitute for 90Y to quantify the biodistribution of Y-pharmaceuticals in animals. Yttrium-88 and strontium-85 as gamma emitting radiotracers were produced via natSrCO3(p, xn) and natRbCl(p, xn) nuclear processes at AMIRS, with 18 and 15 MeV protons, respectively, at a current of 20 μA for 10 hours. The deposition of natSrCO3 on the Cu backing was carried out by means of the sedimentation method. Yttrium-88 was separated in a 92 ± 5% radiochemical yield using the precipitation technique by precipitating natSr as SrSO4 (strontium-85 as a tracer) while radioyttrium passed through the filter paper. Also, a theoretical study of the nuclear reaction cross-sections for proton and deuteron induced reactions on natSr and natRb for the production of 88Y and 85Sr, respectively, was performed using the EMPIRE (version 3.1 Rivoli), TALYS-1.26 codes and the TENDL-2010 data base.
accelerator production, 88Y, 85Sr, precipitation technique, EMPIRE
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