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Development of Target Holder for the First Experiment on an Alternative Route for 64Cu Radioisotope Production by Secondary Neutron Irradiation of a 64ZnO Target.

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Title: Development of Target Holder for the First Experiment on an Alternative Route for 64Cu Radioisotope Production by Secondary Neutron Irradiation of a 64ZnO Target.
Authors: Kambali, Imam1 (AUTHOR) imam013@brin.go.id, Dwi Saputra, Angga1 (AUTHOR), Marlina, Marlina2 (AUTHOR), Febrianto, Isdandy Rezki1 (AUTHOR), Aziz, Ihwanul1 (AUTHOR), Rahman, Wira Y2 (AUTHOR), Kurnianto, Kristedjo3 (AUTHOR), Tursinah, Rasito3 (AUTHOR), Ritawidya, Rien2 (AUTHOR), Haryuni, Ratna Dini2 (AUTHOR), Parwanto, Parwanto4 (AUTHOR), Rajiman, Rajiman4 (AUTHOR), Huda, Nur5 (AUTHOR), Fajarwati, Kartika6 (AUTHOR)
Source: Nuclear Science & Engineering. May2025, Vol. 199 Issue 5, p829-837. 9p.
Subjects: Radioisotopes, Neutron irradiation, Gamma ray spectrometer, Computer simulation, Zinc oxide, Factory equipment, Nuclear reactions
Abstract: The target holder, as part of the target system for cyclotron-based radioisotope production, plays a crucial role in successful radioisotope production. The target holder has to be designed and developed so that it will not deform or melt should a beam of energetic particles irradiate the target. In this work, we develop and test a target holder for 64Cu radioisotope production. The thermal distribution and structural analysis are simulated using ANSYS software. Based on the ANSYS simulation results, a maximum temperature of 84°C occurred on the titanium foil, while the maximum temperature in the target holder body was 35.6°C when an 11-MeV proton beam with a beam current of 25 μA was bombarded on the target holder. We successfully test the target holder, and for the first time, we experimentally produce a 64Cu radioisotope by secondary neutron irradiation of the 64ZnO target. Using 11-MeV protons with a proton beam current of 25 μA incident on a 1-mm Ti foil for 5 min, we were able to generate secondary neutrons, and then the secondary neutrons irradiated 1 g of the enriched 64ZnO target. Copper-64 produced from the 64Zn(n,p)64Cu nuclear reaction was eventually detected using a portable gamma spectrometer, and its radioactivity was measured using a dose calibrator. For the first time, this experimental study confirmed that as much as 48.8 ± 6.2 MBq/μAh radioactivity of 64Cu was produced with no observed radioactive impurities. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:The target holder, as part of the target system for cyclotron-based radioisotope production, plays a crucial role in successful radioisotope production. The target holder has to be designed and developed so that it will not deform or melt should a beam of energetic particles irradiate the target. In this work, we develop and test a target holder for 64Cu radioisotope production. The thermal distribution and structural analysis are simulated using ANSYS software. Based on the ANSYS simulation results, a maximum temperature of 84°C occurred on the titanium foil, while the maximum temperature in the target holder body was 35.6°C when an 11-MeV proton beam with a beam current of 25 μA was bombarded on the target holder. We successfully test the target holder, and for the first time, we experimentally produce a 64Cu radioisotope by secondary neutron irradiation of the 64ZnO target. Using 11-MeV protons with a proton beam current of 25 μA incident on a 1-mm Ti foil for 5 min, we were able to generate secondary neutrons, and then the secondary neutrons irradiated 1 g of the enriched 64ZnO target. Copper-64 produced from the 64Zn(n,p)64Cu nuclear reaction was eventually detected using a portable gamma spectrometer, and its radioactivity was measured using a dose calibrator. For the first time, this experimental study confirmed that as much as 48.8 ± 6.2 MBq/μAh radioactivity of 64Cu was produced with no observed radioactive impurities. [ABSTRACT FROM AUTHOR]
ISSN:00295639
DOI:10.1080/00295639.2024.2392070