title: Nuclear model calculation and targetry recipe for production of 110mIn.
abstract: (110m)In is potentially an important positron emitting that can be used in positron emission tomography. In this work, the excitation functions and production yields of (110)Cd(d, 2n), (111)Cd(d, 3n), (nat)Cd(d, xn), (110)Cd(p, n), (111)Cd(p, 2n), (112)Cd(p, 3n) and (nat)Cd(p, xn) reactions to produce the (110m)In were calculated using nuclear model code TALYS and compared with the experimental data. The yield of isomeric state production of (110)In was also compared with ground state production ones to reach the optimal energy range of projectile for the high yield production of metastable state. The results indicate that the (110)Cd(p, n)(110m)In is a high yield reaction with an isomeric ratio (σ(m)/σ(g)) of about 35 within the optimal incident energy range of 15-5 MeV. To make the target, cadmium was electroplated on a copper substrate in varying electroplating conditions such as PH, DC current density, temperature and time. A set of cold tests were also performed on the final sample under several thermal shocks to verify target resistance. The best electroplated cadmium target was irradiated with 15 MeV protons at current of 100 µA for one hour and the production yield of (110m)In and other byproducts were measured.
authors.affiliation: Department of Physics, Faculty of Science, Imam Khomeini International University, Qazvin, Iran. Electronic address: Tayeb@znu.ac.ir.
authors.forename: T
authors.initials: T
authors.lastname: Kakavand
authors.affiliation: Agricultural, Medical and Industrial Research School, Nuclear Science and Technology Research Institute, AEOI, Karaj, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Mirzaii
authors.affiliation: Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran. Electronic address: mohammad.eslami25@yahoo.com.
authors.forename: M
authors.initials: M
authors.lastname: Eslami
authors.affiliation: Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Karimi
mesh_terms: D002104:Cadmium / Q000737:chemistry* / Q000528:radiation effects*; D003198:Computer Simulation; D004595:Electroplating; D007205:Indium Radioisotopes / Q000737:chemistry*; D007553:Isotope Labeling / Q000379:methods*; D008956:Models, Chemical; D049268:Positron-Emission Tomography / Q000379:methods; D019275:Radiopharmaceuticals / Q000138:chemical synthesis*
chemical_list: D007205:Indium Radioisotopes; D019275:Radiopharmaceuticals; D002104:Cadmium
keywords: (110m)In; Cadmium electroplating; Excitation function; Isomeric ratio