Measurements of the excitation functions of radon and astatine isotopes from 7Li-induced reactions with 209Bi for development of a 211Rn–211At generator

We have measured excitation functions of 209 Bi( 7 Li, 5n) 211 Rn, 209 Bi( 7 Li, 6n) 210 Rn, and other reactions, with the aim of realizing a 211 Rn/ 211 At generator for cancer therapy. On the basis of a comparison with theoretical predictions, we found that nuclides of 210 At are produced via a br...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2020, Vol.323 (2), p.921-926
Main Authors: Maeda, Eita, Yokoyama, Akihiko, Taniguchi, Takumi, Washiyama, Kohshin, Nishinaka, Ichiro
Format: Article
Language:English
Subjects:
Astatine
Astatine isotopes
Bismuth isotopes
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Excitation
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Nuclides
Physical Chemistry
Radioactivity
Radon isotopes
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Summary:We have measured excitation functions of 209 Bi( 7 Li, 5n) 211 Rn, 209 Bi( 7 Li, 6n) 210 Rn, and other reactions, with the aim of realizing a 211 Rn/ 211 At generator for cancer therapy. On the basis of a comparison with theoretical predictions, we found that nuclides of 210 At are produced via a break-up process rather than from the 209 Bi( 7 Li, p5n) 210 At reaction. The excitation functions obtained in this study provide the most favorable conditions for 211 Rn production in terms of available radioactivity and nuclide purity of the irradiated material.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-019-06990-z