Manuel C. Lagunas-Solar, Omar F. Carvacho, Robert R. Cima
{"title":"Cyclotron production of PET radionuclides: 34mCl (33.99 min; β + 53%; IT 47%) with protons on natural isotopic chlorine-containing targets","authors":"Manuel C. Lagunas-Solar, Omar F. Carvacho, Robert R. Cima","doi":"10.1016/0883-2889(92)90011-3","DOIUrl":null,"url":null,"abstract":"<div><p>Thin- and thick-target yields for the production of <sup>34m</sup>Cl (31.99 min; β + 53%; IT 47%) with high-energy protons on natural isotopic chlorine targets were measured in the 67.5–20.0 MeV energy range. The total cross section for the reactions <sup>35</sup>Cl(p,pn) (<em>Q</em> = -12.8 MeV) and <sup>37</sup>Cl(p,p3n) (<em>Q</em> = -31.7 MeV) was measured. The total cross section peaked at 30 MeV with a value of 108±14.6 (13.5%) mbarn. The <sup>34m</sup>Cl cumulative yield reached 591±80 (13.5%) mCi/μAh with a 67.5-MeV proton beam exiting at 20 MeV. The potential to produce <sup>34m</sup>Cl for research and radiopharmaceutical syntheses is discussed based upon current accelerator capabilities. Other aspects of the potential use of <sup>34m</sup>Cl (i.e. radionuclidic, radiochemical purities, specific activities) are also discussed.</p></div>","PeriodicalId":14288,"journal":{"name":"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1992-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0883-2889(92)90011-3","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0883288992900113","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
Thin- and thick-target yields for the production of 34mCl (31.99 min; β + 53%; IT 47%) with high-energy protons on natural isotopic chlorine targets were measured in the 67.5–20.0 MeV energy range. The total cross section for the reactions 35Cl(p,pn) (Q = -12.8 MeV) and 37Cl(p,p3n) (Q = -31.7 MeV) was measured. The total cross section peaked at 30 MeV with a value of 108±14.6 (13.5%) mbarn. The 34mCl cumulative yield reached 591±80 (13.5%) mCi/μAh with a 67.5-MeV proton beam exiting at 20 MeV. The potential to produce 34mCl for research and radiopharmaceutical syntheses is discussed based upon current accelerator capabilities. Other aspects of the potential use of 34mCl (i.e. radionuclidic, radiochemical purities, specific activities) are also discussed.