Neutron production in bombardments of thin and thick W, Hg, Pb targets by 0.4, 0.8, 1.2, 1.8 and 2.5 GeV protons

Spallation residues in the reactionFe56+pat0.3A,0.5AVillagrasa-Canton1, Boudard2, Ducret3 et al. 2007Phys. Rev. C10051020View full textAdd to dashboardCite

“…The recoil velocities, although not perfect, are the closest to the experimental values and the mean values and widths of the isotopic distributions are rather well reproduced. Other authors [14,15] have found that generally GEMINI reproduces very well the energy spectra of both light charged particles and intermediate mass fragments in a wide range of incident energies and target masses. Similar conclusions (best agreement with GEMINI) have been reached by [65] using as intra-nuclear model the Cascade-Exciton Model, coupled with GEM, GEMINI and SMM and compared with these data taken from the C. Villagrasa-Canton PhD [66].…”

“…In recent years, an important effort has been undertaken, mainly under the framework of the HINDAS European project [12], to collect a comprehensive set of high-quality spallation data regarding the production of neutrons [13,14], light charged particles [15] and residual nuclei. The general goal is to better understand the reaction mechanisms in order to improve the models that are then implemented into high-energy transport codes.…”

Neutron production and energy deposition in fissile spallation targets studied with Geant4 toolkit

“…MCADS results are compared with experimental data in Table 2. The average numbers of neutrons produced by protons of various energies in tungsten and uranium targets were measured in [33,34]. In Ref.…”

Bi-spectral moderator for spallation sources optimized for instrument requirements

“…Two points should be emphasized here. First, the proton energy of 2.5 GeV (Table 2) is well above the ideal value of around 1.0 GeV from the perspective of the neutron multiplicity [18]. Second, bispectrality has its price, namely a lower cold neutron flux compared to pure H 2 moderators, e.g.…”