منابع مشابه
Neutron Yields from Proton-induced Spallation Reactions in Thick Targets of Lead
Total neutron yield, integrated over the neutron energy and emission angle, is calculated for spaJlation reactions in lead at proton energies between 0.4 and 2 GeV. The computations were made with the LAHET/MCNP code package using the intranuclem-cascade-evaporation m o d e l o f B e r t i n i . T h e dependence of the integrat neutron yield on the target dimensions is investigated and the cont...
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The phylogeny of salmonid fishes has been the focus of intensive study for many years, but some of the most important relationships within this group remain unclear. We used 269 Genbank sequences of mitochondrial DNA (from 16 genes) and nuclear DNA (from nine genes) to infer phylogenies for 30 species of salmonids. We used maximum parsimony and maximum likelihood to analyze each gene separately...
متن کاملPrediction of the IMF yields in spallation reactions by the statistical evapora- tion-fission model in ABRABLA
In the last decade, a European collaboration has successfully carried out a dedicated experimental program at the FRS at GSI, aimed to have comprehensive experimental information of the proton-induced spallation reactions. Results from the experiments on several systems (Au+ H, Pb + H, U + H, Fe + H, Xe + H) in the energy range 0.3-1.5 GeV per nucleon were already published or are still being a...
متن کاملSpallation Nuclear Data
Brief reviews are made of the theoretical models, the nuclear and nucleon data used in the simulation calculations of the nuclear spallation process. The spallation, as seen from the spallation neutron spectrum, can be described quite well as the successive three (1) intra-nuclear cascades, (2) particle emissions from the pre-equilibrium step process: state, (3) competing decay of the residual ...
متن کاملSynchrotron-driven Spallation Sources
The use of synchrotrons for pulsed neutron spallation sources is an example of spin-off from the accelerator development prompted by particle physics. The first proposal for an accelerator-driven source with a thermalised neutron facility was in the 1960s (Intense Neutron Generator, ING) [1], but this project was never built. There was earlier work on 'electrical' breeders [2] and the direct bo...
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ژورنال
عنوان ژورنال: Zeitschrift für Naturforschung A
سال: 1966
ISSN: 1865-7109,0932-0784
DOI: 10.1515/zna-1966-0724