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IAEA project aims to develop polymer irradiation model
The International Atomic Energy Agency has launched a new coordinated research project (CRP) aimed at creating a database of polymer-radiation interactions in the next five years with the long-term goal of using the database to enable machine learning–based predictive models.
Radiation-induced modifications are widely applicable across a range of fields including healthcare, agriculture, and environmental applications, and exposure to radiation is a major factor when considering materials used at nuclear power plants.
Hideo Harada, H. Takahashi, Arnold L. Aronson, Takeshi Kase, Kenji Konashi,†, Nobuyuki Sasao
Fusion Science and Technology | Volume 24 | Number 2 | September 1993 | Pages 161-167
Technical Paper | Nonelectrical Application | doi.org/10.13182/FST93-A30222
Articles are hosted by Taylor and Francis Online.
A system of nuclear transmutation is presented in which fission products and transuranics (TRU) are incinerated using 14-MeV neutrons produced by muoncatalyzed fusion (µCF) and a subcritical core composed of fission products and TRU, The 14-MeV neutrons produced by µCF are used to transmute 90Sr (fission product) by the (n,2n) reaction. The outcoming neutrons from the 90Sr cell transmute TRU through fission reactions and 99Tc through (n, γ) reactions. This fission energy is converted into electric energy to supply 4 GeV-25 mA deuteron beam power, which is used to produce µ− mesons. We also evaluate the production of tritium that is consumed as a fuel for µCF. The feasibility of the system was analyzed by the MCNP Monte Carlo neutron transport code. The results show that this system can be subcritical and can transmute fission products and TRU with an incineration half-life of ∼1 yr and that the deuteron beam energy and tritium fuel required to operate the system can be supplied within the system cycle itself.
