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Ogawa, Tatsuhiko; Sato, Tatsuhiko; Hashimoto, Shintaro; Niita, Koji*
Proceedings of Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo (SNA & MC 2013) (CD-ROM), 6 Pages, 2014/06
Times Cited Count：0 Percentile：0.04(Computer Science, Interdisciplinary Applications)The fragmentation cross-sections of relativistic energy nucleus-nucleus and proton-nucleus collisions were analyzed using the Statistical Multi-fragmentation Model (SMM) incorporated with the Particle and Heavy Ion Transport code System (PHITS). The fragmentation cross-sections simulated by PHITS-SMM and PHITS were compared with the literature data. For heavy-ion-induced reactions, the simulation by PHITS-SMM predicted fragmentation cross-sections up to two orders of magnitude more accurate than PHITS. For proton-induced reactions, noticeable improvements were observed for both heavy and medium-mass target. Therefore, implementation of a multi-fragmentation model is a robust way to accurately predict fragmentation cross-sections at intermediate energies.
-ray productionOgawa, Tatsuhiko; Hashimoto, Shintaro; Sato, Tatsuhiko; Niita, Koji*
Proceedings of Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo (SNA & MC 2013) (CD-ROM), 6 Pages, 2014/06
A new de-excitation model, EBITEM (ENSDF-Based Isomeric Transition/ isomEr production Model), intended for simulation of isomeric transition of excited nuclei was incorporated to PHITS and applied for de-excitation of nuclear reaction products. The energy spectra of the prompt -rays and isomer production in various reactions were simulated by PHITS-EBITEM and compared with literature data. The isomeric to ground ratios and prompt -ray spectra from neutron capture reaction products agreed with literature data generally within a few 10%. PHITS-EBITEM was also applied to spallation reaction products and isomeric to ground ratios were reproduced within a factor of three. PHITS-EBITEM is useful for accurate simulation of detector performance, radiation shielding and radioactive inventory including isomers.
Misawa, Takeharu; Takase, Kazuyuki; Yoshida, Hiroyuki; Ose, Yasuo*; Oka, Yoshiaki*
Proceedings of Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo (SNA & MC 2013) (CD-ROM), 2 Pages, 2013/10
