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Pan WT, Song T, Lan HY, Ma ZG, Zhang JL, Zhu ZC, Luo W. Photo-excitation production of medically interesting isomers using intense γ-ray source. Appl Radiat Isot 2020; 168:109534. [PMID: 33285467 DOI: 10.1016/j.apradiso.2020.109534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 01/28/2023]
Abstract
Photon-induced nuclear excitation (i.e. photo-excitation) can be used for production of nuclear isomers, which have potential applications in astrophysics, energy storage, medical diagnosis and treatment. This paper presents a feasibility study on photo-excitation production of four nuclear isomers (103mRh, 113m,115mIn and 176mLu) with intense γ-ray source based on laser-electron Compton scattering (LCS). The decay properties of these isomers and their potential applications in medical diagnosis and treatment were reviewed. The cross-section curve, simulated yield and activity of product of each photo-excitation process were calculated. The cutoff energy of LCS γ-ray beam was optimized by adjusting electron beam energy in order to maximize the isomer activity. It is found that the specific activity of the above-mentioned isomers can exceed ~0.2 GBq/g for 6-h target irradiation at an intensity of 1013 γ/s. Our simulation results suggest the prospect of producing medically interesting radionuclides with photo-excitation using the state-of-art LCS γ-ray beam facility.
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Affiliation(s)
- Wan-Ting Pan
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China
| | - Tan Song
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China
| | - Hao-Yang Lan
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China
| | - Zhi-Guo Ma
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China
| | - Jing-Li Zhang
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China
| | - Zhi-Chao Zhu
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China
| | - Wen Luo
- School of Nuclear Science and Technology, University of South China, 421001, Hengyang, PR China; National Exemplary Base for International Sci & Tech. Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, PR China.
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Experimental cross sections and mass distribution of fission products of thorium-232 irradiated with protons in energy range 20–140 MeV. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07185-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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A solid support generator of the Auger electron emitter rhodium-103m from [ 103Pd]palladium. Appl Radiat Isot 2019; 156:108985. [PMID: 32056685 DOI: 10.1016/j.apradiso.2019.108985] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 11/11/2019] [Accepted: 11/11/2019] [Indexed: 11/22/2022]
Abstract
Auger electron therapy is an attractive modality for targeting microscopic tumors. Rhodium-103 m (103mRh, T½ = 56.1 min) is a promising Auger electron emitter that can be obtained as the decay product of palladium-103 (103Pd, T½ = 16.99 days). 103Pd was chelated in a lipophilic derivative of the 16aneS4 macrocycle and the complex was trapped on a C18 cartridge. Elution with dilute hydrochloric acid gave radiochemically pure 103mRh. We hypothesize this to be through a combination of the Szilard-Chalmers effect and transient ionization.
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