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Clemente, M.; Berdermann, E.; Kienle, P.; Tsertos, H.; Wagner, W.; Kozhuharov, C.; Bosch, F.
Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.)1984
Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.)1984
AbstractAbstract
[en] Spectra of positrons emitted in heavy ion-atom collisions close to the Coulomb barrier were measured. The data exhibit broad energy distribution according to expectations for induced positron creation by the strong time changing Coulomb field. For the heavy systems U+U and U+Th superimposed narrow lines at 300 keV positron energy were observed. Possible sources for this unexpected line - such as nuclear excitations or spontaneous positron emission enhanced by a prolonged nuclear reaction time - are discussed. (orig.)
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Jan 1984; 17 p
Record Type
Report
Literature Type
Numerical Data
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BETA-PLUS DECAY, COULOMB FIELD, DE-EXCITATION, E1-TRANSITIONS, E2-TRANSITIONS, ELECTRON SPECTRA, ELECTRONS, ENERGY SPECTRA, EXCITATION, EXPERIMENTAL DATA, GAMMA SPECTRA, GEV RANGE 01-10, INELASTIC SCATTERING, ION-ATOM COLLISIONS, PAIR PRODUCTION, PALLADIUM, PALLADIUM 106, PALLADIUM 106 TARGET, POSITRONS, THORIUM, THORIUM 232, THORIUM 232 TARGET, URANIUM, URANIUM 238, URANIUM 238 REACTIONS, URANIUM 238 TARGET, URANIUM IONS
ACTINIDE NUCLEI, ACTINIDES, ALPHA DECAY RADIOISOTOPES, ANTILEPTONS, ANTIMATTER, ANTIPARTICLES, ATOM COLLISIONS, ATOMIC IONS, BETA DECAY, CHARGED PARTICLES, COLLISIONS, DATA, DECAY, ELECTRIC FIELDS, ELEMENTARY PARTICLES, ELEMENTS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, FERMIONS, GEV RANGE, HEAVY ION REACTIONS, HEAVY NUCLEI, INFORMATION, INTERACTIONS, INTERMEDIATE MASS NUCLEI, ION COLLISIONS, IONS, ISOTOPES, LEPTONS, MATTER, METALS, MULTIPOLE TRANSITIONS, NUCLEAR DECAY, NUCLEAR REACTIONS, NUCLEI, NUMERICAL DATA, PALLADIUM ISOTOPES, PARTICLE INTERACTIONS, PARTICLE PRODUCTION, PLATINUM METALS, RADIOISOTOPES, SCATTERING, SPECTRA, STABLE ISOTOPES, TARGETS, THORIUM ISOTOPES, TRANSITION ELEMENTS, URANIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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