0000000000594396

AUTHOR

Alain Astier

showing 2 related works from this author

Status report of the SARA IGISOL used in the study of the 238U(α 40 MeV, ƒ) reaction

1992

Abstract A new ion guide isotope separator on-line (IGISOL), operating with the SARA facility, has been constructed. Using the 238U(α 40 MeV, ƒ) reaction to produce very neutron-rich radioisotopes, all mass chains from A = 96 to 122 have been scanned by conventional methods of nuclear spectroscopy. Provided the stopping volume is separated from the primary beam, it has been proved that the yield is nearly proportional to the He pressure. In addition to the usual advantages (quasi-independence from physical and chemical properties of elements), this makes IGISOL a powerful technique for high energy recoil products. During the experiments the boundary of known neutron-rich nuclei was reached …

Nuclear and High Energy PhysicsRange (particle radiation)Isotope010308 nuclear & particles physicsChemistryAnalytical chemistrySeparator (oil production)7. Clean energy01 natural sciencesIonNuclear physicsRecoilVolume (thermodynamics)Yield (chemistry)0103 physical sciencesNuclear Experiment010306 general physicsInstrumentationBeam (structure)Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Competition of fission with the population of the yrast superdeformed band in $^{194}$Pb

1999

The 194Pb yrast superdeformed band has been populated in two reactions induced by two different beams delivered by the JYFL cyclotron. These two reactions differ in the asymmetry ratio (i.e. the ratio of the target mass over the projectile one) by more than a factor 3. For the first time, a superdeformed band of the A≈190 mass region has been populated using such a very heavy beam, namely 74Ge.

Physicseducation.field_of_study[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex]010308 nuclear & particles physicsFissionProjectileYrastmedia_common.quotation_subjectPopulationCyclotron[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesAsymmetrylaw.inventionNuclear physicslaw0103 physical sciences010306 general physicseducationBeam (structure)media_common
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