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Photonuclear production of medical radioisotopes 161 Tb and 155 Tb.
- Source :
-
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2023 Aug; Vol. 198, pp. 110840. Date of Electronic Publication: 2023 May 05. - Publication Year :
- 2023
-
Abstract
- The production possibility of <superscript>161</superscript> Tb and <superscript>155</superscript> Tb by irradiating of natural dysprosium with gamma rays obtained by decelerating an electron beam with an energy of 55 MeV has been demonstrated experimentally. The yield of <superscript>161</superscript> Tb was 14.4 × 10 <superscript>3</superscript> Bq × μA <superscript>-1</superscript>  × h <superscript>-1</superscript>  × cm <superscript>2</superscript> × g <subscript>Dy2O3</subscript> <superscript>-1</superscript> . Simultaneously, upon irradiation, <superscript>155</superscript> Dy is formed with the yield of 25 × 10 <superscript>3</superscript> Bq × μA <superscript>-1</superscript>  × h <superscript>-1</superscript>  × cm <superscript>2</superscript> × g <subscript>Dy2O3</subscript> <superscript>-1</superscript> , which leads to the formation of 1.6 × 10 <superscript>3</superscript> Bq × μA <superscript>-1</superscript>  × h <superscript>-1</superscript>  × cm <superscript>2</superscript> × g <subscript>Dy2O3</subscript> <superscript>-1</superscript> of <superscript>155</superscript> Tb. It has been shown that the isolation of terbium radioisotopes from tens of mg of dysprosium target can be achieved by extraction chromatography, and final separation yield was 39%. The impurity of <superscript>160</superscript> Tb is 7.3% of the <superscript>161</superscript> Tb activity at EOB.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Subjects :
- Terbium chemistry
Dysprosium chemistry
Radioisotopes
Subjects
Details
- Language :
- English
- ISSN :
- 1872-9800
- Volume :
- 198
- Database :
- MEDLINE
- Journal :
- Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine
- Publication Type :
- Academic Journal
- Accession number :
- 37156063
- Full Text :
- https://doi.org/10.1016/j.apradiso.2023.110840