{"title":"用次级中子辐照天然氧化锌和富集64ZnO靶制备Cu-64放射性同位素的新方法","authors":"Kartika Fajarwati , Wahyu Setia Budi , Ngurah Ayu Ketut Umiati , Imam Kambali","doi":"10.1016/j.radphyschem.2025.113008","DOIUrl":null,"url":null,"abstract":"<div><div>This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of <sup>64</sup>ZnO and <sup>nat</sup>ZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x10<sup>9</sup> n/cm<sup>2</sup>s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched <sup>64</sup>ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"237 ","pages":"Article 113008"},"PeriodicalIF":2.8000,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched 64ZnO targets\",\"authors\":\"Kartika Fajarwati , Wahyu Setia Budi , Ngurah Ayu Ketut Umiati , Imam Kambali\",\"doi\":\"10.1016/j.radphyschem.2025.113008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of <sup>64</sup>ZnO and <sup>nat</sup>ZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x10<sup>9</sup> n/cm<sup>2</sup>s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched <sup>64</sup>ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.</div></div>\",\"PeriodicalId\":20861,\"journal\":{\"name\":\"Radiation Physics and Chemistry\",\"volume\":\"237 \",\"pages\":\"Article 113008\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiation Physics and Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0969806X25005006\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Physics and Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0969806X25005006","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
A novel method for Cu-64 radioisotope production by secondary neutrons irradiation of natural ZnO and enriched 64ZnO targets
This work presents the PHITS simulation and experimental studies of copper-64 (Cu-64) radioisotope by secondary neutron irradiation of 64ZnO and natZnO targets. The secondary neutrons are generated from 11-MeV proton bombardment of titanium (Ti) primary targets with a proton beam of 15 μA and irradiation time of 5 min. The PHITS calculated results show that the 11-MeV proton bombarded Ti target generates a total neutron flux of 3.38x109 n/cm2s, which then theoretically produces a saturated Cu-64 yield of 35 kBq/g and 25 kBq/g following neutron irradiation of enriched 64ZnO and natural ZnO targets, respectively. The PHITS simulation results very well agree with the experimental data.
期刊介绍:
Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing.
The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.