Cross sections for the production of residual nuclides by high-energy heavy ions
β Scribed by H. Yashima; Y. Uwamino; H. Iwase; H. Sugita; T. Nakamura; S. Ito; A. Fukumura
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 727 KB
- Volume
- 226
- Category
- Article
- ISSN
- 0168-583X
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β¦ Synopsis
Irradiation experiments were performed at the Heavy Ion Medical Accelerator in Chiba (HIMAC) facility, National Institute of Radiological Sciences. The radioactive spallation products in a thick Cu target were obtained for Ar(230, 400 MeV/nucleon), Si(800 MeV/nucleon), Ne(100, 230, 400 MeV/nucleon), C(100, 230, 400 MeV/nucleon), He(100, 230 MeV/nucleon), p(100, 230 MeV) ions. The gamma-ray spectra from irradiated Cu, C, Al, Cr, Fe, Ni, Pb samples inserted into the composite Cu target were measured with a HPGe detector. From the gamma-ray spectra, we obtained the reaction cross section data on the Cu, C, Al, Cr, Fe, Ni and Pb samples. The measured cross sections were fitted to a modified form of RudstamΓs semi-empirical formula in order to evaluate the cross sections of unmeasured nuclides. These estimated cross sections were added to the experimental yields for each mass number and the total mass-yield and isobaric charge distributions. We also calculated the cross sections for the production of residual nuclides by high-energy heavy ions by the particle and heavy-ion transport code system (PHITS) code and compared with measured results. The PHITS code provides good results on cross section calculations.
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