70 research outputs found
The ALTO project at IPN Orsay
In order to probe neutron rich radioactive noble gases produced by
photo-fission, a PARRNe1 experiment (Production d'Atomes Radioactifs Riches en
Neutrons) has been carried out at CERN. The incident electron beam of 50 MeV
was delivered by the LIL machine: LEP Injector Linac. The experiment allowed to
compare under the same conditions two production methods of radioactive noble
gases: fission induced by fast neutrons and photo-fission. The obtained results
show that the use of the electrons is a promising mode to get intense neutron
rich ion beams. Thereafter, the success of this photo-fission experiment, a
conceptual design for the installation at IPN Orsay of a 50 MeV electron
accelerator close to the PARRNe-2 device has been worked out: ALTO Project.
This work has started within a collaboration between IPNO, LAL and CERN groups.Comment: 14 pages, pdf file, International School-Seminar on Heavy-Ion Physics
7 (2002
Study of the N=50 major shell effect close to Ni : First evidence of a weak coupling structure in Ge and three-proton configuration states in Ga
New levels were attributed to Ga and
Ge which were fed by the -decay of their respective
mother nuclei Zn and Ga produced by
fission at the "PARRNe" ISOL set-up installed at the Tandem accelerator of the
Institut de Physique Nucl\'eaire, Orsay. We show that the low energy structure
of Ga and Ge can easily be explained
within the natural hypothesis of a strong energy gap at N=50 and a doubly-magic
character for Ni.Comment: 2 pages, pdf file, To be published in the Proceedings of
"International Symposium on Structure of Exotic Nuclei and Nuclear Forces
(SENUF 06)", March 2006, Tokyo, Japa
Release properties of UC and molten U targets
The release properties of UC and molten U thick targets associated with a Nier- Bernas ion source have been studied. Two experimental methods are used to extract the release time. Results are presented and discussed for Kr, Cd, I and Xe
Recent results on neutron rich tin isotopes by laser spectroscopy
Laser spectroscopy measurements have been performed on neutron rich tin isotopes using the COMPLIS experimental setup. The nuclear charge radii of the even-even isotopes from A=108 to 132 are compared to the results of macroscopic and microscopic calculations. The improvements and optimizations needed to perform the isotope shift measurement on Sn are presented
COMPLIS experiments : COllaboration for spectroscopy Measurements using a Pulsed Laser Ion Source
Laser spectroscopy measurements have been carried out on very neutron-deficient isotopes of Au, Pt and Ir, produced as daughter elements from a Hg ISOLDE beam. For these transitional region nuclides, the hyperfine structure (HFS) and isotope shift (IS) were measured by Resonance Ionization Spectroscopy (RIS). Magnetic moments μ, spectroscopic quadrupole moments Qs and changes of the nuclear mean square charge radius δ〈rc 2〉along isotopic series have been extracted. For some results, a detailed comparison with theoretical predictions is presented. (Springer
Synthèse et coordination d'un nouveau ligand hybride P,N
Communication orale intitulée : Synthèse et coordination d'un nouveau ligand hybride P,
Characterization of new injectable biomaterials containing bisphosphonates
International audienc
Hybrid materials applied to biotechnologies: coating of calcium phosphates for the design of implants active against bone resorption disorders
The reaction of a bisphosphonate bone resorption inhibitor (Zoledronate) with calcium deficient hydroxyapatites (CDAs) was studied as a potential route to local drug delivery systems active against bone resorption disorders. A simple mathematical model of the Zoledronate–CDA interaction was designed that correctly described the adsorption of Zoledronate onto CDAs. The resulting Zoledronate-loaded materials were found to release the drug in different phosphate-containing media, with a satisfactory agreement between experimental data and the values predicted from the model
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