Indication for a volatile element 114

Recently, the chemical investigation of element 112 revealed a highly volatile, noble metallic behaviour, as expected for the last group 12 member of the periodic table. The observed volatility and chemical inertness were ascribed to the growing influence of relativistic effects on the chemical properties of the heaviest elements with increasing nuclear charge. Here, we report for the first time on gas phase chemical experiments aiming at a determination of element 114 properties. This element was investigated using its isotopes 287-114 and 288-114 produced in the nuclear fusion reactions of 48Ca with 242Pu and 244Pu, respectively. Identification of three atoms of element 114 in thermochromatography experiments and their deposition pattern on a gold surface indicates that this element is at least as volatile as simultaneously investigated elements Hg, At, and element 112. This behaviour is rather unexpected for a typical metal of group 14

Study of complete and incomplete fusion for loosely bound projectiles 6He and 6Li on 165Ho and 166Er targets

Complete fusion (CF) and incomplete fusion (ICF) reactions were studied for the cases of the loosely bound 6He and 6Li projectiles bombarding 166Er and 165Ho targets at energy of about 10 MeV/nucleon. Experiments were carried out to test an approach exploiting the measured intensities of γ rays emitted at the transitions between the yrast-band levels of reaction products formed after the termination of neutron evaporation. Partial waves feeding the CF reactions 165Ho ( 6Li, 5n) 166Yb and 166Er( 6He, 6n) 166Yb as well as ICF 165Ho ( 6Li, α3n) 164Er and 166Er( 6He, α4n) 164Er reaction channels were revealed from the obtained γ-ray data. The method of exit channel identification via the triple coincidence (γ1-γ2-light charged particle) was employed for these reactions study. © 2012 Pleiades Publishing, Ltd.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Complete and Incomplete Fusion of6He and6Li Projectiles with Medium Mass Targets at Energy ∼10 AMeV

Complete fusion (CF) and incomplete fusion (ICF) reactions were studied with the beams of loosely bound 6He and 6Li bombarding 166Er and 165Ho targets. Experiments were carried out to test an approach exploiting the measured intensities of y rays emitted at the transitions between the yrast-band levels of reaction products formed after the termination of neutron evaporation. Partial waves feeding the CF [ 165Ho(6Li,5n)166Yb, 166Er( 6He,6n)166Yb] and ICF [165Ho( 6Li,α3n)164Er, and 166Er( 6He,α4n)164Er] reaction channels were revealed from the obtained γ-ray data. © 2009 American Institute of Physics.SCOPUS: cp.pinfo:eu-repo/semantics/publishe