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Chapter and Conference Paper
A new experimental approach for isochronous mass measurements of short-lived exotic nuclei with the FRS-ESR facility
Projectile fragments separated in flight with the FRS have been injected into the storage ring ESR. Operating the ESR in the isochronous mode has enabled high-resolution mass measurements of short-lived isotop...
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Chapter and Conference Paper
Isobar separation at FRS-ESR — a development towards pure isomeric stored beams
One important goal of the ILIMA project at FAIR is the study of masses and decay properties of relativistic isomeric beams stored and cooied in the planned storage-ring complex. A new scheme is described, wher...
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Chapter and Conference Paper
Direct mass measurements of neutron-deficient 152Sm projectile fragments at the FRS-ESR facility
The FRS-ESR facility at GSI provides one of the most efficient methods for direct mass measurements. In the present experiment, exotic nuclei were produced via fragmentation of 152Sm projectiles in a thick beryll...
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Chapter and Conference Paper
Studies of light neutron-rich nuclei near the drip line
Coulomb breakup of neutron-rich Be, B, C, and O isotopes at relativistic energies (400–600 A MeV) was studied with kinematically complete measurements. The ground-state properties of these nuclei were deduced by ...
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Chapter and Conference Paper
One-neutron knockout of 23O
Breakup reactions were used to study the ground-state configuration of the neutron-rich isotope 23O. The 22O fragments produced in one-nucleon removal from 23O at 938 MeV/nucleon in a carbon target were detected ...
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Chapter and Conference Paper
Investigation of nuclear matter distribution of the neutron-rich He isotopes by proton elastic scattering at intermediate energies
Absolute differential cross-sections for elastic p 6He and p 8He scattering were measured in inverse kinematics with secondary beams. In order to supplement data ta...
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Chapter and Conference Paper
Storage-Ring Experiments with Exotic Nuclei: From Mass Measurements to the Future
Direct mass measurements with electron-cooled ions coasting in a heavy-ion storage ring allow the map** of large areas of the nuclear chart, well suited to explore new regions and to investigate isospin effe...
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Chapter and Conference Paper
Probing intruder structures in lead nuclei
In-beam γ-ray spectroscopy measurements provide important information on coexisting normal and intruder configurations in lead nuclei. However, in these experiments the yrast states are preferentially populate...
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Chapter and Conference Paper
Study of Nuclear Matter Distributions of Halo Nuclei 6He and 8He with Elastic Proton Scattering
The study of neutron-rich light nuclei near the drip line has attracted much attention as they exhibit a particular nuclear structure, namely an extended distribution of the valence neutrons surrounding a comp...
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Chapter and Conference Paper
Mass measurements of relativistic exotic nuclei at the FRS-ESR facility at GSI
Two complementary mass measurement techniques have been developed utilizing the combination of Fragment Separator (FRS) [1] and Experimental Storage Ring (ESR) [2] at GSI. In both methods relativistic exotic n...
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Chapter and Conference Paper
The dipole response of nuclei with large neutron excess
The dipole response of neutron-rich nuclei in the mass range from A = 10 to A = 22 and with mass to charge ratios of 2.5 to 2.8 has been invesitigated experimentally utilizing electromagnetic excitation in heavy-...
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Chapter and Conference Paper
Nuclear-matter distributions of halo nuclei from elastic proton scattering in inverse kinematics
Proton-nucleus elastic scattering at intermediate energies, a well-established method for probing nuclear-matter density distributions of stable nuclei, was applied for the first time to exotic nuclei. This me...
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Chapter and Conference Paper
6,8He: a comparative study of fragmentation reactions
Dissociation of 227 MeV/u 8He in lead and carbon targets has been studied in kinematically complete experiments, the data are compared with corresponding results for 6He.
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Chapter and Conference Paper
Decay studies of N ≈ Z nuclei from 75Sr to 102Sn
Neutron deficient nuclei near 100Sn have been produced by fragmentation of a 1 · A GeV 112Sn beam. The fragments were separated, identified and stopped in a highly segmented silicon strip detector stack. This det...
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Chapter and Conference Paper
Elastic proton scattering from neutron-rich He-isotopes at intermediate energies and high momentum transfer
Neutron-rich light nuclei near the neutron drip line have attracted much attention in recent years as they feature a particular nuclear structure, namely an extended distribution (so-called halo) of the valenc...
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Chapter and Conference Paper
Development of quadrupole collectivity in the neutron-rich Ni, Zn, Ge, and Se isotopes
An experiment was performed to study the collective properties of neutron-rich Ni, Zn, Ge, and Se isotopes. Of particular interest is the vicinity of the N = 50 and Z = 28 shell closures. For most neutron-rich nu...
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Chapter and Conference Paper
Low-lying resonance states in 7He
The cross section for the 6He+n channel as a function of the relative energy shows a structure, which is interpreted as being due to the 7He I π = 3/2− ground state resonance with about equal...
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Chapter and Conference Paper
Schottky Mass Measurements of Cooled Exotic Nuclei
Projectile fragments of a 209Bi beam were separated in flight with the fragment separator FRS and injected into the experimental storage ring ESR. In the ESR a beam containing up to about 100 different isotopes w...
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Chapter and Conference Paper
A New Concept for Time-of-Flight Mass Spectrometry with Slowed-down Short-Lived Isotopes
A new concept for direct mass measurements of short-lived nuclei with an electrostatic time-of-flight mass spectrometer is described. The spectrometer can be coupled to an in-flight separator such as SHIP or F...
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Chapter and Conference Paper
Status of the SHIPTRAP Project: A Capture and Storage Facility for Heavy Radionuclides from SHIP
The ion trap facility SHIPTRAP is being set up to deliver very clean and cool beams of singly-charged recoil ions produced at the SHIP velocity filter at GSI Darmstadt. SHIPTRAP consists of a gas cell for stop...