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Ogawa, Tatsuhiko; Morev, M.*; Sato, Tatsuhiko
Proceedings of 11th Meeting of the Task Force on Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF-11), p.51 - 58, 2013/10
We develop a combination of TOF and 
E-E method, by which the isotopic fragmentation reaction cross-sections can be obtained as excitation functions in one heavy ion irradiation experiment. The basics of the method is to measure velocity, dE/dx and kinetic energy of projectile fragments originated in a thick target bombarded by mono-energetic heavy ions. Charge, mass and energy of the projectile fragments are measured with a scintillator telescope consisting of a thin plastic scintillators, another plastic scintillator and a thick BGO detector serving as a TOF start detector, a TOF end detector doubling with E detector and a total E detector, respectively. By converting the TOF spectrum for each isotope, isotopic excitation functions are obtained. This method was tested against the simulation with FLUKA code for 400 MeV/u O bombardment on a carbon target. The result shows excitation functions for Li, Be, B, C and N production are successfully obtained above 50-100 MeV/u.
Iwamoto, Yosuke; Niita, Koji*; Sawai, Tomotsugu; Ronningen, R. M.*; Baumann, T.*
Proceedings of 11th Meeting of the Task Force on Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF-11), p.91 - 98, 2013/10
We have developed the displacement damage model in PHITS using the screened Coulomb scattering and the nuclear reaction model to evaluate the energy of the target PKA created by the projectile and the "secondary particles" which include all particles created from the sequential nuclear reactions. For the high-energy proton and neutron incident reactions, it was found that a target PKA created by the "secondary particles" is more dominant than a target PKA created by the projectile in DPA calculations. Recently, radiation damage models in other codes such as FLUKA, MARS, MCNP have also been developed. As there is few experimental data in a high energy region, an intercomparison of Monte Carlo codes used in the radiation damage calculation is very important for the improvement of models. In the meeting, we will also discuss the comparison between PHITS and FLUKA for the high-energy proton and neutron irradiation.
