The production of residual radionuclides by a 250 MeV proton beam. (11th November 2015)

• Record Type: Journal Article
• Authors: Ju, Y Q; Zhang, X Y; Ma, F; Wang, J G; Zhang, H B; Chen, L; Ge, H L; Luo, P; Zhang, Y B; Li, Y Y; Wan, B; Zhou, B; Liang, T J
• Is Part Of: Journal of physics. Volume 42:Number 12(2015:Dec.)
• Publication Date: 2015-11-11
• Subjects: spalltion reaction -- residual nuclide -- cross section -- Monte Carlo code; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/0954-3899/42/12/125102
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: Radionuclide production was studied by bombarding Cu, W and Pb targets with a 250 MeV proton beam. The data were obtained by using the off-line γ -spectroscopy method. Six nuclides in Cu, 28 nuclides in W and 34 nuclides in Pb targets were identified and their cross sections were determined. The measured results were compared to other experiments with isotopic Cu and W targets. Corresponding simulations using the MCNPX transport code were also performed to compare the measurements. In the simulations, eight different models or combinations of intranuclear cascade and de-excitation models were introduced. The comparison indicated that most cross sections were fairly reliably predicted for nuclides in the spallation mass region, but differ greatly for nuclides in the medium and fission mass regions.