Leandro Piazza
(INFN - LNL)
11/14/11, 2:30 PM
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...
Dr
Marcella Grasso
(IPNO)
11/14/11, 3:45 PM
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...
Dr
van Giai NGuyen
(IPNO)
11/14/11, 4:15 PM
Jerzy DUDEK
(IPHC and Univerite de Strasbourg)
11/14/11, 4:45 PM
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!]
...
Dr
Danilo Gambacurta
(GANIL)
11/14/11, 5:15 PM
Dr
Clementina Agodi
(LNS-INFN), Prof.
Giacomo Cuttone
(LNS)
11/14/11, 6:10 PM
Dr
Marin Chabot
(Institut de physique Nucléaire d'Orsay)
11/14/11, 6:30 PM
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.
Dr
lorenzo corradi
(INFN - Laboratori Nazionali di Legnaro)
11/15/11, 9:00 AM
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...
Dr
Emmanuel Clement
(CNRS GANIL)
11/15/11, 9:30 AM
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...
Mr
Marco Brenna
(Dipartimento di Fisica, Universita' degli Studi di Milano and INFN, Sezione Milano)
11/15/11, 10:00 AM
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...
Dr
Laurent Gaudefroy
(CEA-France)
11/15/11, 10:50 AM
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...
Dr
Marc Olivier Frégeau
(GANIL)
11/15/11, 2:30 PM
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...
Dr
Sandrine Courtin
(IPHC and UDS)
11/15/11, 3:00 PM
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...
Francesco Cappuzzello
(Univ. Catania and INFN-LNS)
11/15/11, 3:30 PM
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...
Anabel Morales Lopez
(INFN-Milano)
11/15/11, 4:00 PM
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...
Dr
Manuela Cavallaro
(INFN - LNS)
11/15/11, 4:50 PM
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....
Giuseppe POLITI
(Dipartimento di Fisica e Astronomia - Università di Catania - ITALY)
11/15/11, 5:20 PM
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...
Ms
Sandra GIRON
(IPNO)
11/15/11, 5:50 PM
17.
Progress on the development and construction of the 50 kW Neutron Converter for Spiral 2 project
Mrs
Judilka Bermudez
(LNL-INFN)
11/16/11, 9:00 AM
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...
Dr
Emmanuel Clement
(CNRS GANIL)
11/16/11, 9:00 AM
In this presentation, recent new on the design and construction of the S3 spectrometer will be presented (spectromter design, target station, detection system).
Stefano Riboldi
(Universita' degli Studi di Milano, INFN)
11/16/11, 9:40 AM
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...
Tommaso Marchi
(INFN Laboratori Nazionali di Legnaro - Università di Padova)
11/16/11, 10:00 AM
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...
Dr
Luciano Calabretta
(INFN-LNS)
11/16/11, 11:40 AM
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...
Dr
Corinne Louchart
(CEA)
11/16/11, 12:30 PM
Dr
Daniele Scarpa
(I.N.F.N. - L.N.L.)
11/16/11, 12:50 PM
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...
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...
