6533b7cffe1ef96bd1259b78
RESEARCH PRODUCT
Low-energy fission investigated in reactions of 750 AMeV 238U-ions with Pb and Be targets
S. CzajkowskiK.-h. SchmidtG. MünzenbergCh. MiehéHans GeisselP. ArmbrusterK. SümmererBurkart VossW. SchwabCh. KozhuharovM. PfütznerC. StéphanL. Tassan-gotThomas AumannAndreas Martin HeinzM. HesseE. HaneltM. BernasC. DonzaudPh. Dessagnesubject
PhysicsCold fissionNuclear and High Energy PhysicsCluster decay010308 nuclear & particles physicsFissionNuclear TheoryKinetic energy01 natural sciences7. Clean energyDissociation (chemistry)Effective nuclear chargeIonNuclear physicsLow energyNuclear fissionIonization0103 physical sciencesNuclear fusionAtomic physicsNuclear Experiment010306 general physicsdescription
Charge distributions of fragments from low energy nuclear fission are investigated in reactions of highly fissile238U projectiles at relativistic energies (750 A·MeV) with a heavy (Pb) and a light (Be) target. The fully stripped fission fragments are separated by the Fragment Separator (FRS). Their high kinetic energies in the laboratory system allow the identification of all atomic numbers by using Multiple-Sampling Ionization Chambers (MUSIC). The elemental distributions of fragments observed at larger magnetic rigidities than the238U projectiles show asymmetric break-up and odd-even effects. They indicate a low energy fission process, induced mainly by dissociation in the electro-magnetic field for the U/Pb-system, or by peripheral nuclear interactions for the U/Be-system.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-02-01 | Zeitschrift für Physik A Hadrons and nuclei |