S'authentifier

5th LEA-COLLIGA Meeting

14–16 nov. 2011
IPN Orsay
Fuseau horaire Europe/Paris

Talks

45 sur 45 affichés
Exporter en PDF
  1. 36. Welcome address from IPNO Director
    Dr Faiçal Azaiez (director IPNO)
    14/11/2011 13:40
  2. 32. Words from Director of GANIL
    Dr Sydney Gales
    14/11/2011 13:50
  3. 35. Words from Director of LNL
    Prof. Gianni Fiorentini (LNL)
    14/11/2011 14:00
  4. 21. Status report of SPIRAL2
    Dr Marek Lewitowicz (GANIL)
    14/11/2011 14:10
  5. 10. SPES Project: a Neutron Rich ISOL Facility for re-accelerated RIBs
    Leandro Piazza (INFN - LNL)
    14/11/2011 14:30
    SPES (Selective Production of Exotic Species) is an INFN project to develop a Radioactive Ion Beam (RIB) facility as an intermediate step toward EURISOL. The SPES Project is under realization at the INFN Legnaro National Laboratories site. The SPES Project main goal is to provide a production and accelerator system of exotic beams to perform forefront research in nuclear physics by...
    Go to contribution page
  6. 30. Latest news from ALTO
    Dr Fadi Ibrahim (IPNO)
    14/11/2011 15:00
  7. 11. Beyond-mean-field theories with zero-range effective interactions: A way to handle the ultraviolet divergence.
    Dr Marcella Grasso (IPNO)
    14/11/2011 15:45
    Zero-range effective interactions are commonly used in nuclear physics and in other domains to describe many-body systems within the mean field model. If they are used in a beyond mean-field framework, contributions to the total energy that display an ultraviolet divergence are found. We propose a general strategy to regularize this divergence and we illustrate it in the case of the...
    Go to contribution page
  8. 22. Determination of local energy density functionals from Brueckner-Hartree-Fock calculations.
    Dr van Giai NGuyen (IPNO)
    14/11/2011 16:15
  9. 18. About Predicitve Power of Nuclear Theories and Strengthening the Link with Experiment
    Jerzy DUDEK (IPHC and Univerite de Strasbourg)
    14/11/2011 16:45
    It is (too) often thought (and even said) that the theory has predictive power, when the comparison between the data and the theory graph looks good. [Something looking good for someone is perhaps quite unsatisfactory for someone else, and with such a definition we have an infinity of different predictive powers in the circulation! - in-acceptable in the XXIst century!] ...
    Go to contribution page
  10. 24. Low-lying dipole response within the second RPA in 40,48Ca nuclei
    Dr Danilo Gambacurta (GANIL)
    14/11/2011 17:15
  11. 20. Anomalous light flashes: from astronauts to protontherapy
    Elias Khan (IPN Orsay)
    14/11/2011 17:50
    Heavy ion interactions in the eye can induce light flashes (phosphenes). Both Neil Armstrong and Edwin Aldrin reported unexpected visual perceptions during their Moon landing mission, due to cosmic rays interactions. We have undertaken a clinical ground study of proton-induced phosphenes. Sixty percent of the patients treated for choroidal melanomas at the Institut Curie – Centre de...
    Go to contribution page
  12. 23. Protontherapy at LNS
    Dr Clementina Agodi (LNS-INFN), Prof. Giacomo Cuttone (LNS)
    14/11/2011 18:10
  13. 9. Interdisciplinary activities connected to astrophysical issues at the Orsay Tandem Facility.
    Dr Marin Chabot (Institut de physique Nucléaire d'Orsay)
    14/11/2011 18:30
    I will present an overview of interdisciplinary activities connected to astrophysical issues at the Orsay Tandem Facility. It will concern the simulation of the Cosmic Rays on the Plank bolometer, the Cosmic Ray processing of interstellar analogue dusts and, the molecule-atom collision program with the AGAT multi-detector for astrochemical purpose.
    Go to contribution page
  14. 26. Recent measurements on neutron transfer reactions at deep sub-barrier energies with PRISMA
    Dr lorenzo corradi (INFN - Laboratori Nazionali di Legnaro)
    15/11/2011 09:00
    Recent measurements performed in inverse kinematics at deep sub-barrier energies in the 96Zr+40Ca system will be presented. Target-like recoils have been fully identified with the large solid angle magnetic spectrometer PRISMA. The experimental data for one and two neutron transfer channels have been compared with semiclassical microscopic calculations. For the two neutron transfer...
    Go to contribution page
  15. 12. In-beam and isomer spectroscopy in the third island of inversion at EXOGAM+VAMOS
    Dr Emmanuel Clement (CNRS GANIL)
    15/11/2011 09:30
    Excited states in a wide range of neutron rich nuclei around 68Ni has been studied in multi nucleon transfer reactions in inverse kinematics using a 238U beam at the Coulomb barrier and the large acceptance spectrometer VAMOS and the segmented germanium clover detectors EXOGAM at GANIL. In a first experiment, the lifetimes of the first excited states in even-even Fe and even-odd Co isotopes...
    Go to contribution page
  16. 16. Microscopic theory of the gamma decay of nuclear giant resonances
    M. Marco Brenna (Dipartimento di Fisica, Universita' degli Studi di Milano and INFN, Sezione Milano)
    15/11/2011 10:00
    A microscopic formalism that allows the calculation of the gamma decay of nuclear excited states has been developed. In particular, it has been applied to the direct gamma decay of the Isoscalar Giant Quadrupole Resonance in 208Pb to the ground state and to the low-lying octupole state, as well. The phonons are calculated within fully self-consistent RPA, while the calculation of the gamma...
    Go to contribution page
  17. 0. In Flight Fast Timing measurements at VAMOS.
    Dr Laurent Gaudefroy (CEA-France)
    15/11/2011 10:50
    In septembre 2011 we performed the first In Flight Fast Timing (IFFT) measurements at GANIL on 197Au, 152Sm and 172Yb nuclei presenting 1.9ns, 1.4ns, 100ps and 57ps isomers. States of interest in the target nuclei were populated via Coulomb excitation induced by a 136Xe beam accelerated at 5 A.MeV. Desexcitation gamma-rays were detected using an array consisting on 16 LaBr3 fast...
    Go to contribution page
  18. 15. Neutron-rich 71Cu by transfer reactions at Ganil
    serge franchoo (ipn)
    15/11/2011 11:20
    The series of copper isotopes (Z=29) is of prime interest for nuclear structure. The first 5/2 level in the odd isotopes, carrying most of the f5/2 proton strength, sharply drops in energy beyond N=40 and becomes the ground state in 75Cu. The position and the strength distribution of the f7/2 spin-orbit partner is essential to understand the underlying mechanism of this effect, bent to have...
    Go to contribution page
  19. 6. Search for X-rays characteristic of element with Z = 120
    Dr Marc Olivier Frégeau (GANIL)
    15/11/2011 14:30
    Super-heavy compound nuclei (Z = 120 and 124) with long fission times (t ≥ 10-18s) have been recently evidenced through experiments [1] applying the crystal blocking technique. This method, because it requires high quality monocrystalline targets, cannot be generalized to define and locate possible islands of stability in the super-heavy region. An alternative approach is to use the...
    Go to contribution page
  20. 1. Multinucleon transfer reactions in the 40Ar+208Pb and 36S+208Pb systems
    Dr Sandrine Courtin (IPHC and UDS)
    15/11/2011 15:00
    Two multinucleon transfer experiments performed at the LNL will be presented. - The 40Ar+208Pb reaction was used to populate 40-43Ar isotopes via the 0n to 3n channels. Residues were identified in the Prisma spectrometer and the coincident gamma rays in the Clara gamma array. - More recently, the 36S+208Pb reaction (July 2011) allowed the study of lifetimes of intruder states in N~20 Si, P...
    Go to contribution page
  21. 7. News from the MAGNEX-EDEN facility at the LNS
    Francesco Cappuzzello (Univ. Catania and INFN-LNS)
    15/11/2011 15:30
    An intense experimental activity has been accomplished during 2011 at the INFN-LNS by the MAGNEX spectrometer team. An overview of the experiments, including some of the main results will be presented. A special emphasis will be given to the activities strongly connecting our group with the French collaborators in the field of two-neutron transfer reactions and their implications on the...
    Go to contribution page
  22. 3. BETA-DECAY SPECTROSCOPIC STUDIES OF THE NEUTRON-RICH 211,212,213Tl and 219Bi ISOTOPES
    Anabel Morales Lopez (INFN-Milano)
    15/11/2011 16:00
    The study of the beta-decay process in heavy neutron-rich systems is of main importance to probe the nuclear models used in r-process calculations. Experimental evidence is particularly interesting in nuclei approaching the waiting point A~195, since the r-process nuclei are still inaccessible in laboratory and the beta-decay models used to extrapolate their properties show strong...
    Go to contribution page
  23. 19. Nuclear response to two-neutron transfer via the (18O,16O) reaction
    Dr Manuela Cavallaro (INFN - LNS)
    15/11/2011 16:50
    A study of the structure of different nuclei was pursued at the Catania INFN-LNS laboratory by the (18O,16O) two-neutron transfer reaction at 84 MeV incident energy. The experiments were performed using several solid targets from light (9Be, 11B, 12,13C, 16O, 28Si) to heavier ones (58,64Ni, 120Sn, 208Pb). The 16O ejectiles were detected at forward angles by the MAGNEX magnetic spectrometer....
    Go to contribution page
  24. 2. Study and comparison of the decay modes of the systems formed in the reactions 78Kr+40Ca and 86Kr+48Ca at 10 AMeV
    Giuseppe POLITI (Dipartimento di Fisica e Astronomia - Università di Catania - ITALY)
    15/11/2011 17:20
    The first results of the ISODEC experiment, performed at the INFN-Laboratori Nazionali del Sud (LNS) by using the CHIMERA detector, will be presented. The principal aim of this experiment is to study the competition between the various disintegration modes of 118,134Ba produced in the reactions 78Kr+40Ca and 86Kr+48Ca at 10 AMeV, exploring the isospin dependence of the decay modes of medium...
    Go to contribution page
  25. 47. Study of the 60Fe(n,gamma)61Fe reaction of astrophysical interest via (d,p) transfer reaction
    Mlle Sandra GIRON (IPNO)
    15/11/2011 17:50
  26. 42. ORGAM 2
    Dr Faiçal AZAIEZ (IPN Orsay), Dr Iolanda Mattea (IPN OrsAY)
    15/11/2011 18:20
  27. 17. Progress on the development and construction of the 50 kW Neutron Converter for Spiral 2 project
    Mme Judilka Bermudez (LNL-INFN)
    16/11/2011 09:00
    LNL-INFN is in charge of the research, development and construction of the 50 kW neutron converter for the Spiral 2 facility for producing radioactive ion beams. In the Spiral 2 project, the deuterons primary beam 40 MeV and 5 mA interacts with a graphite converter for producing a neutron flux of 1x1012 neutrons/s/cm2. The high neutron flux is required for inducing fissions on the UCx fissile...
    Go to contribution page
  28. 14. Recent news from the S3 spectrometer at SPIRAL2
    Dr Emmanuel Clement (CNRS GANIL)
    16/11/2011 09:00
    In this presentation, recent new on the design and construction of the S3 spectrometer will be presented (spectromter design, target station, detection system).
    Go to contribution page
  29. 27. PARIS detector status
    Dr Olivier Stezowski (IPN Lyon)
    16/11/2011 09:20
  30. 45. LaBr3 detectors, phototubes, electronics and signal processing: hands-on report about on-going research
    Stefano Riboldi (Universita' degli Studi di Milano, INFN)
    16/11/2011 09:40
    Since a couple of years, the Milano group (INFN and University) is interested in LaBr3 scintillators as detectors for nuclear physics experiments. Ten detectors (3.5" x 8" size, by Saint Gobain) are available and some of them have already been used (Legnaro, GSI, Riken, etc.) with satisfactory results. A few physical and technical factors practically limiting the intrinsic performance of...
    Go to contribution page
  31. 13. Upgrading the RIPEN Apparatus with Digital Electronics
    Tommaso Marchi (INFN Laboratori Nazionali di Legnaro - Università di Padova)
    16/11/2011 10:00
    The RIPEN apparatus is a neutron detector array composed of BC501 liquid scintillators specifically suited for neutron detection and time of flight measurement. It was installed at Legnaro National Laboratory in early `90s, while the last measurement campaign was performed in 2007. At present the apparatus is undergoing a process of complete substitution of readout/acquisition electronics. The...
    Go to contribution page
  32. 39. NEDA detector status
    Dr Johan Nyberg (Uppsala University)
    16/11/2011 10:20
  33. 33. Response of strip detectors
    Dr Maria Fisichella (LNL)
    16/11/2011 11:00
  34. 28. FAZIA status
    Dr Fabiana Gramegna
    16/11/2011 11:20
  35. 37. The FRIB-LNS facility and the transfer and purification line for the radioactive ion beam at SPES
    Dr Luciano Calabretta (INFN-LNS)
    16/11/2011 11:40
    At the end of the 2010, the optic of the extraction beam line of the superconducting cyclotron of LNS was strongly modified. The installation of news quadrupoles and of a cooled target allows to increase the production and collection efficiency of the radioactive ion beam produced in flight. A short description of the new optic and of the achieved performances will be presented. A new...
    Go to contribution page
  36. 31. Recent news from the S3 spectrometer at SPIRAL2
    Dr Emmanuel Clément (GANIL)
    16/11/2011 12:10
  37. 44. A Recoil-Distance Doppler-Shift lifetime experiment on neutron-rich Zn isotopes with AGATA
    Dr Corinne Louchart (CEA)
    16/11/2011 12:30
  38. 46. Studies for Aluminum photo-ionization in hot cavity for the SPES Project
    Dr Daniele Scarpa (I.N.F.N. - L.N.L.)
    16/11/2011 12:50
    Beside the Uranium Carbide (UCx) target that will be used in SPES (Selective Production of Exotic Species) project, a SiC target will he first to be used to deliver some p-rich beams and validate the function of the SPES facility. Hitting SiC target with protons, one of the elements coming out from nuclear reaction is Aluminum with its isotopes. In order to obtain an Aluminum ion beam, among...
    Go to contribution page
  39. 25. (no title)
  40. 29. (no title)
  41. 40. (no title)
  42. 43. (no title)
  43. 4. Beyond-mean-field theories with zero-range effective interactions: A way to handle the ultraviolet divergence.
    Marcella Grasso (IPNO)
    Zero-range effective interactions are commonly used in nuclear physics and in other domains to describe many-body systems within the mean field model. If they are used in a beyond mean-field framework, contributions to the total energy that display an ultraviolet divergence are found. We propose a general strategy to regularize this divergence and we illustrate it in the case of the...
    Go to contribution page
  44. 41. Status of GALILEO
    Dr Calin Alexandru Ur (INFN Sezione di Padova)
    GALILEO is a project aiming to the building of a 4pi high-resolution gamma-ray array by using GASP tapered detectors and capsules of the EUROBALL Cluster detectors. The array will be located at the National Laboratories of Legnaro where stable beams are provided by the Tandem-ALPI-PIAVE accelerator complex and, in the future, exotic radioactive ion beams will be delivered by SPES. One of the...
    Go to contribution page
  45. 34. Welcome introduction
    Dr Fabiana Gramegna (LNL), Dr Jean-Antoine Scarpaci (IPNO)