0000000000710057

AUTHOR

H. Eickhoff

showing 5 related works from this author

First isochronous mass spectrometry at the experimental storage ring ESR

2000

Short-lived exotic nuclei can be produced and separated with the high-energy secondary nuclear beam facility FRS at GSI. These nuclides can be injected and stored in the storage ring ESR. The lower lifetime limit of the presently existing methods for mass measurements on these nuclides at the ESR is about a few seconds. We have developed and investigated an isochronous operational mode of the ESR, that makes mass measurements of nuclides with lifetimes down to a few ls feasible. It has been commissioned in experiments using long-lived nuclides with known masses. A mass resolving power of about 150 000 has been achieved in a "rst pilot experiment. A suitable detector system has been implemen…

PhysicsNuclear and High Energy PhysicsResolution (mass spectrometry)SpectrometerIsotopeMass spectrometryIsotope separationlaw.inventionNuclear physicslawMeasuring instrumentNuclideInstrumentationStorage ringNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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Study of Basic Nuclear Properties of Highly-Charged, Unstable Nuclei at the SIS-FRS-ESR Complex

2004

Recent progress in experiments with exotic nuclear beams at the SIS-FRS-ESR facility is summarized. New results on gross properties of exotic nuclei like binding energy, half-lives, and decay modes are presented. A brief outlook to future experiments is given.

PhysicsElastic scatteringNuclear and High Energy PhysicsScatteringNuclear TheoryHadronBinding energyGeneral Physics and AstronomyHalf-lifeBeta decayAtomic massNuclear physicsAtomic physicsNuclear ExperimentRadioactive decayActa Physica Hungarica A) Heavy Ion Physics
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Study of the Unstable NucleusL10iin Stripping Reactions of the Radioactive ProjectilesB11eandL11i

1995

Reactions of the halo systems Be-11 and Li-11 (at 460 and 280 MeV/nucleon) with a carbon target demonstrate that (n + Li-9) has an (unbound) l = 0 ground state very close to the threshold. The neutron halo of Li-11 has appreciable (1s(1/2))(2) and (0p(1/2))(2) components.

PhysicsStripping (chemistry)ProjectileAnalytical chemistryGeneral Physics and Astronomychemistry.chemical_elementmedicine.anatomical_structurechemistrymedicineNeutronHaloAtomic physicsNucleonGround stateNucleusCarbonPhysical Review Letters
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Schottky mass measurements of stored and cooled neutron-deficient projectile fragments in the element range of 57≤Z≤84

2000

Abstract A novel method for direct, high precision mass measurements of relativistic exotic nuclei has been successfully applied in the storage ring ESR at GSI. The nuclei of interest were produced by projectile fragmentation of 930 MeV / u bismuth ions, separated in-flight by the fragment separator FRS, stored and cooled in the ESR. The mass values have been deduced from the revolution frequencies of the coasting cooled ions. We have measured 104 new mass values with a precision of about 100 keV and a resolving power of 3.5×10 5 for the neutron-deficient isotopes of the elements 57≤Z≤84 . This paper presents the experimental method, the mass evaluation and a table of the experimental mass …

PhysicsNuclear and High Energy PhysicsRange (particle radiation)IsotopeProjectileNuclear TheorySchottky diodechemistry.chemical_elementIonBismuthNuclear physicschemistryNeutronAtomic physicsNuclear ExperimentStorage ringNuclear Physics A
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Dissociation of 8He into 6He + n + X at 240 MeV/u

1995

4 pages, 3 figures, 2 tables.

PhysicsNuclear and High Energy PhysicsPhysical chemistryDissociation (chemistry)
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