The 17th CNS International Summer School (CNSSS18)

Study of proton- and deuteron- induced reactions on the long-lived fission product 93Zr at 30MeV/u in inverse kinematics

25 Aug 2018, 15:45

10m

Nishina Hall

poster contribution YSS

Speaker

Kotaro Iribe (Department of Physics , Kyushu University)

Description

[background]
Nuclear reactions for the long-lived fission product (LLFP) ${}^{93}\mathrm{Zr}$(${\mathrm{T}}_{1/2}$=1.6million years) have been studied for the purpose of nuclear waste transmutation. According to the previous report[1], it was found that the proton- and deuteron-induced spallation reactions at 105 MeV/u are effective for the ${}^{93}\mathrm{Zr}$ transmutation. For systematic study, we performed an experiment for the proton- and deuteron- induced reactions on ${}^{93}\mathrm{Zr}$ at 30 MeV/u. In this energy region, the fusion evaporation process is dominant. Thus, the reaction mechanism dependence can be studied by comparison with the high energy spallation data.

[experimental method]
This experiment was performed at RIKEN Radioactive Isotope Beam Factory (RIBF). The degraded RI beams at 30 MeV/u were produced by a newly developed beam line, OEDO. To induce the reactions, the high-pressure cooled gas targets (${\mathrm{H}}_2$ and ${\mathrm{D}}_2$ ) were used. Reaction residues were analyzed by the SHARAQ spectrometer.

In this talk, we will present the details of experiments and the obtained results.

References
[1] S. Kawase et al., Prog. Theor. Exp. Phys. 2017 , 093D03 (2017).