285 research outputs found
MCNP6 Simulation of Reactions of Interest to FRIB, Medical, and Space Applications
The latest, production, version of the Los Alamos Monte Carlo N-Particle
transport code MCNP6 has been used to simulate a variety of particle-nucleus
and nucleus-nucleus reactions of academic and applied interest to the Facility
for Rare Isotope Beams (FRIB), medical isotope production, space-radiation
shielding, cosmic-ray propagation, and accelerator applications, including
several reactions induced by radioactive isotopes, analyzing production of both
stable and radioactive residual nuclei. Here, we discuss examples of validation
and verification of MCNP6 compared to recent neutron spectra measured at the
Heavy Ion Medical Accelerator in Chiba, Japan; to spectra of light fragments
from several reactions measured recently at GANIL, France; INFN Laboratori
Nazionali del Sud, Catania, Italy; COSY of the Julich Research Center, Germany;
and to cross sections of products from several reactions measured lately at
GSI, Darmstadt, Germany; ITEP, Moscow, Russia; LANSCE, LANL, Los Alamos, USA.
As a rule, MCNP6 provides quite good predictions for most of the reactions we
analyzed so far, allowing us to conclude that it can be used as a reliable and
useful simulation tool for FRIB, medical, and space applications involving
stable and radioactive isotopes.Comment: 4 pages, 4 figures, Proc. 2nd Conference on "Advances in Radioactive
Isotope Science" (ARIS2014) June 1-6, 2014, Tokyo, Japan, to be published in
JPS Conference Proceeding
MCNP6 simulation of light and medium nuclei fragmentation at intermediate energies
Fragmentation reactions induced on light and medium nuclei by protons and
light nuclei of energies around 1 GeV/nucleon and below are studied with the
Los Alamos transport code MCNP6 and with its CEM03.03 and LAQGSM03.03 event
generators. CEM and LAQGSM assume that intermediate-energy fragmentation
reactions on light nuclei occur generally in two stages. The first stage is the
intranuclear cascade (INC), followed by the second, Fermi breakup
disintegration of light excited residual nuclei produced after the INC. CEM and
LAQGSM account also for coalescence of light fragments (complex particles) up
to 4He from energetic nucleons emitted during INC. We investigate the validity
and performance of MCNP6, CEM, and LAQGSM in simulating fragmentation reactions
at intermediate energies and discuss possible ways of further improving these
codesComment: 6 pages, 6 figures, proc. 12th Int. Conf. on Nucleus-Nucleus
Collisions (NN2015), June 21-26, 2015, Catania, Ital
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