Spectroscopy of transfermium nuclei using the GABRIELA set up at the focal plane of the VASSILISSA recoil separator

• Main Authors: Hauschild, K., Lopez-Martens, A., Dorvaux, O., Piot, J., Curien, D., Gall, B., Yeremin, A. V., Chelnokov, M. L., Chepigin, V. I., Isaev, A. V., Izosimov, I. N., Kabachenko, A. P., Katrasev, D. E., Kuznetsov, A. N., Malyshev, O. N., Popeko, A. G., Sokol, E. A., Svirikhin, A. I., Wiborg-Hagen, T., Nyhus, H. T
• Format: Conference Proceeding
• Language: English
• Subjects: ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; CONVERSION; DECAY; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELECTRON SPECTROSCOPY; ELECTRONS; ELEMENTARY PARTICLES; ENERGY LEVELS; EVEN-ODD NUCLEI; FERMIONS; FERMIUM 249; FERMIUM 251; FERMIUM ISOTOPES; GAMMA RADIATION; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INTERNAL CONVERSION; INTERNATIONAL ORGANIZATIONS; IONIZING RADIATIONS; ISOTOPES; JINR; LAWRENCIUM 255; LAWRENCIUM ISOTOPES; LEPTONS; MINUTES LIVING RADIOISOTOPES; NOBELIUM 253; NOBELIUM ISOTOPES; NUCLEAR DECAY; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; RADIATIONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTROSCOPY
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.3455962

An IN2P3-JINR collaboration has launched a project called GABRIELA at the Flerov Laboratory for Nuclear Reactions (FLNR) within the Joint Institute for Nuclear Research (JINR) in Dubna (Russia). The goal of the project is to perform gamma-ray and internal conversion electron spectroscopy of heavy nuclei produced in fusion-evaporation reactions and transported to the focal plane of the recoil separator VASSILISSA. During five experimental campaigns of GABRIELA, the detection system has gained in sensitivity and new spectroscopic information has been obtained for {sup 249}Fm, {sup 251}Fm, {sup 253}No and {sup 255}Lr. In this contribution new results for {sup 253}No will be discussed.