Angular distribution of photons from the delay of the GDR in hot and rotating light Yb nuclei from exclusive experiments
TL;DR: In this paper, the angular distributions of photons associated with the damping of excited-state giant dipole resonances (GDR) in hot and rotating 161,162 Yb nuclei have been measured in exclusive experiments using the HECTOR array.
About: This article is published in Nuclear Physics.The article was published on 1994-04-18. It has received 58 citations till now. The article focuses on the topics: Angular momentum of light & Total angular momentum quantum number.
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University of Cologne1, CERN2, University of Groningen3, Ludwig Maximilian University of Munich4, Technische Universität Darmstadt5, Technische Universität München6, University of Liverpool7, Lund University8, University of Edinburgh9, Petersburg Nuclear Physics Institute10, University of Paris-Sud11, Helsinki Institute of Physics12, University of Jyväskylä13, University of Warsaw14, University of York15, University of Göttingen16, University of Bonn17, University of Maryland, College Park18
TL;DR: The Miniball germanium detector array has been operational at the REX (Radioactive ion beam EXperiment) post accelerator at the Isotope Separator On-Line facility ISOLDE at CERN since 2001.
Abstract: The Miniball germanium detector array has been operational at the REX (Radioactive ion beam EXperiment) post accelerator at the Isotope Separator On-Line facility ISOLDE at CERN since 2001. During the last decade, a series of successful Coulomb excitation and transfer reaction studies have been performed with this array, utilizing the unique and high-quality radioactive ion beams which are available at ISOLDE. In this article, an overview is given of the technical details of the full Miniball setup, including a description of the \(\gamma\)-ray and particle detectors, beam monitoring devices and methods to deal with beam contamination. The specific timing properties of the REX-ISOLDE facility are highlighted to indicate the sensitivity that can be achieved with the full Miniball setup. The article is finalized with a summary of some physics highlights at REX-ISOLDE and the utilization of the Miniball germanium detectors at other facilities.
128 citations
Daresbury Laboratory1, University of Milan2, Polish Academy of Sciences3, Keele University4, Technische Universität Darmstadt5, University of Liverpool6, Lund University7, Jagiellonian University8, Chinese Academy of Sciences9, Sofia University10, Katholieke Universiteit Leuven11, Uppsala University12
01 Feb 2005-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The Rare Isotopes Investigation at GSI project combines the former EUROBALL Ge-Cluster detectors, the MINIBALL Ge detectors, BaF2--HECTOR detectors, and the fragment separator at the GSI for high-resolution in-beam gamma-ray spectroscopy measurements with radioactive beams.
Abstract: The Rare ISotopes INvestigation at GSI project combines the former EUROBALL Ge-Cluster detectors, the MINIBALL Ge detectors, BaF2--HECTOR detectors, and the fragment separator at GSI for high-resolution in-beam gamma-ray spectroscopy measurements with radioactive beams. These secondary beams produced at relativistic energies are used for Coulomb excitation or secondary fragmentation experiments in order to explore the nuclear structure of the projectiles or projectile like nuclei by measuring de-excitation photons. The newly designed detector array is described and the performance characteristics are given. Moreover, particularities of the experimental technique are discussed.
116 citations
21 Nov 2007-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, the properties of a cylindrical 1 00 � 1 00 LaBr3:Ce scintillator (Brillance 380) were investigated and the energy resolution at g-ray energy of 662 keV was measured to be smaller than 3% and the intrinsic time resolution was found to be E230 ps.
Abstract: The properties of a cylindrical 1 00 � 1 00 LaBr3:Ce scintillator (Brillance 380) were investigated. The energy resolution at g-ray energy of 662 keV was measured to be smaller than 3% and the intrinsic time resolution was found to be E230 ps. Two different aspects were investigated. The first is the detailed study of the crystal self-activity, emitting a and b particles and g-rays, by measuring coincidences with g-rays in HPGe, BGO and BaF2 detectors. In particular, the coincidence with an HPGe detector allowed to isolate clearly the different contributions from 227 Ac (chemical homologue of lanthanum) and its daughter nuclei down to the stable 207 Pb. The second aspect is the determination of the efficiency for g-ray detection, measured at 1 MeV and simulated using GEANT4 up to 15 MeV as a function of the detector size.
103 citations
Istituto Nazionale di Fisica Nucleare1, University of Padua2, University of Cologne3, Daresbury Laboratory4, Centre national de la recherche scientifique5, University of Milan6, University of Paris-Sud7, Polish Academy of Sciences8, University of Jyväskylä9, Technische Universität Darmstadt10, DSM11
21 Oct 2011-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The first implementation of the AGATA spectrometer consisting of five triple germanium detector clusters has been installed at Laboratori Nazionali di Legnaro, INFN as mentioned in this paper.
Abstract: The first implementation of the AGATA spectrometer consisting of five triple germanium detector clusters has been installed at Laboratori Nazionali di Legnaro, INFN. This setup has two major goals, the first one is to validate the g-tracking concept and the second is to perform an experimental physics program using the stable beams delivered by the Tandem–PIAVE-ALPI accelerator complex. A large Contents lists available at ScienceDirect
89 citations
TL;DR: In this paper, the unstable neutron-deficient Sn-108 isotope has been studied in inverse kinematics by intermediate-energy Coulomb excitation using the RISING/FRS experimental setup at GSI This is the highest Z nucleus studied so far with this method.
Abstract: The unstable neutron-deficient Sn-108 isotope has been studied in inverse kinematics by intermediate-energy Coulomb excitation using the RISING/FRS experimental setup at GSI This is the highest Z nucleus studied so far with this method Its reduced transition probability B (E2;0(gs)(+)-> 2(1)(+)) has been measured for the first time The extracted B(E2) value of 0230(57)e(2) b(2) has been determined relative to the known value in the stable Sn-112 isotope The result is discussed in the framework of recent large-scale shell model calculations performed with realistic effective interactions The roles of particle-hole excitations of the Sn-100 core and of the Z=50 shell gap for the E2 polarization are investigated
86 citations
References
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TL;DR: An experimental and theoretical review of the giant dipole resonance in nuclei is given in this paper, where statistical models, angular distributions and measurement techniques are considered, as well as Proton capture reactions and heavy ion fusion.
Abstract: An experimental and theoretical review of the giant dipole resonance in nuclei is given. Proton capture reactions and heavy ion fusion are emphasized. Topics considered include statistical models, angular distributions and measurement techniques. (AIP)
188 citations
133 citations
TL;DR: In this paper, the isovector dipole density-density response of hot rotating nuclei is calculated applying a cranked deformed Nilsson potential together with a separable dipole-dipole residual interaction.
126 citations
TL;DR: In this article, high-energy gamma rays from the deexcitation of giant dipole resonance modes have been measured for the decay of /sup 108/Sn and /sup 166/Er.
Abstract: High-energy gamma rays from the deexcitation of giant dipole resonance modes have been measured for the decay of /sup 108/Sn and /sup 166/Er. The structure of the observed resonances can be correlated with the shapes of these nuclei at high excitation energy (E(approx. =60 MeV). For the deformed system /sup 166/Er a shape change with increasing temperature is suggested.
88 citations
TL;DR: In this paper, the evolution of the giant dipole resonance in the transition nuclei 144Sm, 148Sm, 150Sm, 152Sm and 154Sm has been studied by means of a continuously variable monochromatic photon beam which allows one to measure the partial photonuclear cross sections separately and simultaneously.
80 citations