Development of the Experimental SetupDedicated for Alpha, Gamma and ElectronSpectroscopy of Heavy Nuclei at FLNR JINR.

摘要

Various types of reactions and identification techniques were applied in the investigation of formation cross sections and decay properties of transuranium elements. The fusion - evaporation reactions with heavy targets, recoil - separation techniques and identification of nuclei by the parent -daughter generic coincidences with the known daughter-nuclei after implantation into position -sensitive detectors were the most successful tools for production and identification of the heaviest elements known presently. This technique may be further improved and presently it may be very promising for the identification of new elements, search for new isotopes and measurement of new decay data for the known nuclei.At the Flerov Laboratory of Nuclear Reactions (JINR, Dubna), investigations of the complete fusion reactions leading to the synthesis of heavy and superheavy nuclei with the use of heavy ion beams from a powerful U400 cyclotron have been an important part of the experimental program. It is planned to upgrade U400 cyclotron of the FLNR, to deliver beams with higher intensities and smooth variation of energies.New experimental set up, the velocity tilter, is now developing for synthesis and studies of the decay properties of heavy nuclei. At the focal plane of the separator GABRIEI.A set up (a, y detectors array) will he installed.