Production of 61Cu by .ALPHA. and 3He bombardment on cobalt target.

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概要

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• In order to determine the optimum irradiation conditions to produce the <SUP>61</SUP>Cu for nuclear medical use, excitation curves and thick-target yield curves were determined for the α reactions producing <SUP>61</SUP>Cu, <SUP>57</SUP>Co, and <SUP>58</SUP>Co, and <SUP>3</SUP>He reactions producing <SUP>61</SUP>Cu, <SUP>56</SUP>Co, <SUP>57</SUP>Co, and <SUP>58</SUP>Co, both from natural cobalt. The <SUP>59</SUP>Co(α, 2n) <SUP>61</SUP>Cu and the <SUP>59</SUP>Co(<SUP>3</SUP>He, n) <SUP>61</SUP>Cu reactions give cross section peaks of 340 mb and 6 mb at 25 MeV and 35 MeV, respectively. The <SUP>61</SUP>Cu thick-target yields for these reactions at 40 MeV were 6 mCi/μAh and 110 μCi/μAh, respectively. A simple and reliable anion-exchange method was developed to provide carrier-free <SUP>61</SUP>Cu. The purity of <SUP>61</SUP>Cu was determined with a Ce(Li) spectrometer. Photopeak efficiencies have been calculated at principal γ-ray energies of <SUP>61</SUP>Cu, <SUP>64</SUP>Cu, and <SUP>67</SUP>Cu, for a 1/2 in. NaI scintillation camera. Alternative nuclear reactions and the methods for producing <SUP>61</SUP>Cu are compared.

• 公益社団法人 日本化学会の論文

著者

• HOMMA Yoshio

  Kyoritsu College of Pharmacy

• Murakami Yukio

  Department Of Chemistry Faculty Of Science Tokyo Metropolitan University

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• Production of 61Cu by .ALPHA. and 3He bombardment on cobalt target.

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