[en] The aim of the lectures is to give, within a phenomenological standpoint of view, an idea of a few theoretical approaches which are currently used for the studies of the low-energy heavy ion collisions. In this aspect, these lectures are by no means a review of our existing knowledge of the phenomena involved during the collisions. The authors hope that they will be able to provide the students with some tools which permit to analyze the experimental results. Indeed, they believe that a good comprehension of the basic mechanisms requires an appropriate definition of collective variables. The dynamical behaviour of these collective variables gives some scenario explaining the behaviour of the corresponding observables. The coupling to the intrinsic system can be considered as responsible for the dissipative nature of the processes: deep inelastic collisions, fast fission and compound nucleus formation. After a general introduction and a lecture devoted to the dissipation mechanisms, they discuss charge equilibration, angular momentum transfer, mass exchange and compound nucleus formation with its de-excitation. The deformation degrees of freedom are considered when necessary. The self consistent treatments are not presented here

[en] The (p,³He) and (p,t) differential cross-sections leading to analog final states of ¹⁰B and ¹⁰C nuclei, were compared, allowing a test of the isospin invariance in these reactions. The experimental ratio of the differential cross sections is 2.22+-0.31, compared with a theoretical prediction of 1.97

No abstract available

No abstract available

[en] The ¹²C(p,α)⁹B* reaction was studied in the frame of the zero range Born approximation. In the case of plane waves, theoretical predictions do not reproduce the first maxima of the differential cross section. Nevertheless, a reasonable agreement was obtained by using the distorded wave theory

[en] The CHORUS collaboration is searching for ν_μ-ν_τ oscillations through the appearance of τ neutrinos in the intense ν_μ beam at CERN. The detection technique and the performances of the various subdetectors are briefly described. The present status of a pilot analysis on data accumulated during 1994 confirms expectations as far as automatic measurements are concerned. (orig.)

[en] The levels of the ⁶Li nucleus were studied via the ⁹Be(p,α) reaction at incident proton energies of 30 and 50 MeV. Accurate excitation energies as well as some of the corresponding widths are extracted for the first few levels known. Marked differences with accepted values were found. The existence of higher excited states in the region E_exc = 8--12 MeV cannot be ruled out. The aim is not to study reaction mechanisms leading to ⁶Li excited states but rather to establish their excitation energies and widths and to compare them to the published values. The importance of understanding the continuum in the particle spectra is stressed as far as it influences the position and width of the excited states

[en] We report measurements of the multiple scattering of heavy ions in solid targets in a broad range 1 <= tau <= 1000 of reduced target thicknesses. A comparison is made with the theory of Sigmund and co-workers. Overall agreement is noted provided the energy loss in the target is taken into account. Energy straggling data are briefly presented. (orig.)

[en] A technique based on liquid scintillator with wavelength-shifting fibre readout is interesting for large-mass neutrino detectors. In this paper, we present the first results obtained with a laboratory prototype assembled at CERN. In the configuration tested, a large light yield has been observed and attenuation lengths of the order of 3.2 m have been measured. As a comparison, we also measured the attenuation length of the fibres in air using the same setup. No significant difference in attenuation length between the fibres in air and in liquid was measured

[en] Document available in abstract form only, full text of document follows: The Jules Horowitz Reactor (JHR) is an experimental reactor under construction at the French Nuclear Energy and Alternative Energies Commission (CEA) facility at Cadarache. It will achieve its first criticality by the end of 2014. Experiments that will be conducted at JHR will deal with fuel, cladding, and material behavior. The JHR will also produce medical radio-isotopes and doped silicon for the electronic industry. As a new irradiation facility, its instrumentation will benefit from recent improvements. Nuclear instrumentation will include reactor dosimetry, as it is a reference technique to determine neutron fluence in experimental devices or characterize irradiation locations. Reactor dosimetry has been improved with the progress of simulation tools and nuclear data, but at the same time the customer needs have increased: Experimental results must have reduced and assessed uncertainties. This is now a necessary condition to perform an experimental irradiation in a test reactor. Items improved, in the framework of a general upgrading of the dosimetry process based on uncertainty minimization, will include dosimeter, nuclear data, and modelling scheme. (authors)