Excitation functions of proton- and deuteron-induced nuclear reactions on natural iridium for the production of 191Pt

Obata H 1 , Khandaker MU 2 , Furuta E 3 , Nagatsu K 4 , Zhang MR 5

Affiliations 

  • 1 Radiopharmaceuticals Development Department, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan; Faculty of Science, Department of Physics, Ochanomizu University, 2-1-1 Otsuka, Bunkyo, Tokyo 112-8610, Japan
  • 2 Center for Radiation Sciences, School of Healthcare and Medical Sciences, Sunway University, 47500 Bandar Sunway, Selangor, Malaysia
  • 3 Faculty of Core Research, Ochanomizu University, Japan
  • 4 Radiopharmaceuticals Development Department, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan. Electronic address: nagatsu.kotaro@qst.go.jp
  • 5 Radiopharmaceuticals Development Department, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
Appl Radiat Isot, 2018 Jul;137:250-260.
PMID: 29679927 DOI: 10.1016/j.apradiso.2018.03.021

Abstract

We studied the excitation functions of residual radionuclides produced via proton and deuteron bombardment on natural iridium in the energy ranges of 30-15 MeV and 50-15 MeV, respectively. A conventional stacked-foil activation technique combined with HPGe γ-ray spectrometry was used to measure the excitation functions for 189, 191Pt and 189, 190g, 192g, 194gIr radionuclide production. Theoretical thick target yields were estimated to be 172 MBq/µA h and 192 MBq/µA h via the 193Ir(p,3n)191Pt reaction at 29.6-17.5 MeV and the 193Ir(d,4n)191Pt reaction at 40.3-23.8 MeV, respectively. The feasibility of 191Pt production from an iridium target was discussed, and compared with previously reported methods for the production of 191Pt.

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