Published May 1990 | Version v1
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Reactions between very heavy atomic nuclei near and below the Coulomb barrier

Creators

  • 1. Mainz Univ. (Germany, F.R.). Inst. fuer Kernchemie

Description

In the present thesis nuclear reactions in the collisional systems 238U + 238U, 238U + 197Au, and 197Au + 197Au were studied at energies at and below the Coulomb barrier. The present measurements show that the transfer of one neutron is the farly dominating reaction channel with mass transfer. Because of the very sensitive radiochemical measuring method the transfer of up to 15 nucleons could be detected. A reaction channel comparable in the strength with the 1n transfer is the fission, composed of fission after purely electromagnetic excitation and fission after nucleon transfer. (orig./HSI) With 69 refs., 35 figs., 46 tabs

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

In der vorliegenden Arbeit wurden Kernreaktionen in den Stosssystemen 238U + 238U, 238U + 197Au und 197Au + 197Au bei Energien an und unterhalb der Coulombbarriere untersucht. Die vorliegenden Messungen zeigen, dass der Transfer eines Neutrons der bei weitem dominierende Reaktionskanal mit Massentransfer ist. Aufgrund der sehr empfindlichen radiochemischen Messmethode konnte der Transfer von bis zu 15 Nukleonen nachgewiesen werden. Ein von der Staerke her mit dem 1n-Transfer vergleichbarer Reaktionskanal ist die Spaltung, zusammengesetzt aus Spaltung nach rein elektromagnetischer Anregung und Spaltung nach Nukleonentransfer. (orig./HSI) With 69 refs., 35 figs., 46 tabs

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Additional details

Additional titles

Original title (German)
Reaktionen zwischen sehr schweren Atomkernen nahe und unterhalb der Coulombbarriere

Publishing Information

Imprint Pagination
146 p.
Report number
GSI--90-10

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
21073994
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data, Thesis
Descriptors DEI
ANGULAR DISTRIBUTION; DIFFERENTIAL CROSS SECTIONS; ENERGY DEPENDENCE; EXCITATION FUNCTIONS; EXPERIMENTAL DATA; FISSION; GEV RANGE 01-10; GOLD 196; GOLD 197 REACTIONS; GOLD 197 TARGET; GOLD 198; GOLD 199; INTEGRAL CROSS SECTIONS; MANY-NUCLEON TRANSFER REACTION; MEV RANGE 100-1000; NEUTRON TRANSFER; ONE-NUCLEON TRANSFER REACTIONS; TRANSFER REACTIONS; TWO-NUCLEON TRANSFER REACTIONS; URANIUM 236; URANIUM 237; URANIUM 238 REACTIONS; URANIUM 238 TARGET; URANIUM 239
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CROSS SECTIONS; DATA; DAYS LIVING RADIOISOTOPES; DIRECT REACTIONS; DISTRIBUTION; ELECTRON CAPTURE RADIOISOTOPES; ENERGY RANGE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; GEV RANGE; GOLD ISOTOPES; HEAVY ION REACTIONS; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INFORMATION; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MEV RANGE; MINUTES LIVING RADIOISOTOPES; MULTI-NUCLEON TRANSFER REACTIO; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPONTANEOUS FISSION RADIOISOTO; TARGETS; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES