New Production Routes for Medical Isotopes ⁶⁴Cu and ⁶⁷Cu Using Accelerator Neutrons

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概要

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• We have measured the activation cross sections producing ⁶⁴Cu and ⁶⁷Cu, promising medical radioisotopes for molecular imaging and radioimmunotherapy, by bombarding a natural zinc sample with 14 MeV neutrons. We estimated the production yields of ⁶⁴Cu and ⁶⁷Cu by fast neutrons from ^\text{natC(d,n) with 40 MeV 5 mA deuterons. We used the present result together with the evaluated cross section of Zn isotopes. The calculated ⁶⁴Cu yield is 1.8 TBq (175 g ⁶⁴Zn) for 12 h of irradiation; the yields of ⁶⁷Cu by ⁶⁷Zn(n,p)⁶⁷Cu and ⁶⁸Zn(n,x)⁶⁷Cu were 249 GBq (184 g ⁶⁷Zn) and 287 GBq (186 g ⁶⁸Zn) at the end of 2 days of irradiation, respectively. From the results, we proposed a new route to produce ⁶⁷Cu with very little radionuclide impurity via the ⁶⁸Zn(n,x)⁶⁷Cu reaction, and showed the ⁶⁴Zn(n,p)⁶⁴Cu reaction to be a promising route to produce ⁶⁴Cu. Both ⁶⁷Cu and ⁶⁴Cu are noted to be produced using fast neutrons.

• 2013-03-15

著者

• IWAMOTO Osamu

  Nuclear Data Center, Japan Atomic Energy Research Institute

• Iwamoto Nobuyuki

  Nuclear Data Center Japan Atomic Energy Agency

• Ochiai Kentaro

  Fusion Research And Development Directorate Japan Atomic Energy Agency

• Takakura Kosuke

  Fusion Research And Development Directorate Japan Atomic Energy Agency

• Konno Chikara

  Fusion Research And Development Directorate Japan Atomic Energy Agency

• Hatsukawa Yuichi

  Nuclear Engineering Research Collaboration Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

• Segawa Mariko

  Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195

• Minato Futoshi

  Nuclear Science and Energy Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

• Kin Tadahiro

  Nuclear Engineering Research Collaboration Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

• Nagai Yasuki

  Nuclear Engineering Research Collaboration Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

• Harada Hideo

  Nuclear Engineering Research Collaboration Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

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