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Measurement of Neutron-Production Cross Sections for 290 MeV/u Carbon Ion Incidence
D. Moriguchi,Y. Nakamura,T. Kajimoto,Y. Koba,M. Ueyama,M. Yoshioka,N. Shigyo,Y. Uozumi,D. Satoh,T. Sanami,M. Takada,N. Matsufuji 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
Neutron-production double-differential cross sections for 290 MeV/u carbon-ion incidence on carbon target were measured with NE213 liquid organic scintillators by time-of-flight technique. NE213 liquid organic scintillators 12.7 cm in diameter and 12.7 cm thick were placed in the directions of 15˚, 30˚, 45˚, 60˚, 75˚, and 90˚. The typical flight path length was 4.0 m. In order to reduce neutrons from the beam dump, an iron and a concrete shield was placed between the detectors and the beam dump. For measurement of background, a shadow bar was set between the target and each detector. Neutron detection efficiencies were obtained by calculations with a Monte Carlo simulation code SCINFUL-QMD. The cross sections were obtained for neutron energy above 2.8 MeV. The experimental results were compared with the calculation data of the PHITS code.
Neutron-Production Double-Differential Cross Sections from Heavy-Ion Interactions
D. Satoh,D. Moriguchi,T. Kajimoto,Y. Koba,Y. Nakamura,N. Shigyo,M. Ueyama,Y. Uozumi,M. Yoshioka,N. Matsufuji,M. Takada,T. Sanami 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
The existing data of neutron-production double-differential cross sections on C, Cu, and Pb targets bombarded with heavy-ions from He to Xe at 230 - 600 MeV/nucleon were revised by using a new set on neutron-detection efficiency values of an NE213-type liquid organic scintillator calculated with SCINFUL-QMD. The revised data were compared with the experimental data obtained by our new measurements, and the predictions of the Monte-Carlo particle transport codes, PHITS, FLUKA, MCNPX, and Geant4. While the revised and new experimental data showed good agreement, the Monte-Carlo codes failed to reproduce the high-energy peaks in the forward angular region.
K. Tahara,Y. Fukuda,G. Wakabayashi,H. Ban,Y. Morimoto,M. Yoshioka,K. Kiyohara,Y. Koba,H. Iwamoto,Y. Uozumi,N. Matsufuji 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
We measured proton-production double differential cross sections (DDXs) by 290 MeV/u carbon beams on carbon, copper, lead targets at forward angles. The proton energies were measured with the spectrometer which consisted of GSO(Ce) crystals and plastic scintillators. The measured DDXs were compared with the calculated ones with PHITS code. The simulation results generally agreed with the measured ones. The measured results will be useful as the benchmark of existing simulation codes and for the future improvements.