Superheavy elements at GSI: a broad research program with element 114 in the focus of physics and chemistry

被引:13
作者
Duellmann, Ch E. [1 ,2 ,3 ]
机构
[1] Johannes Gutenberg Univ Mainz, Inst Nucl Chem, D-55099 Mainz, Germany
[2] GSI Helmholtz Ctr Heavy Ion Res, Dept Nucl Chem, D-64291 Darmstadt, Germany
[3] Helmholtz Inst Mainz, Superheavy Element Chem Res Sect, D-55099 Mainz, Germany
关键词
Superheavy elements; Transactinides; Element; 114; Recoil separator; TASCA; DIRECT MASS MEASUREMENTS; NUCLEAR-STRUCTURE; DECAY; SEPARATOR; IDENTIFICATION; ADSORPTION; DISCOVERY; PRODUCTS; SURFACES; HASSIUM;
D O I
10.1524/ract.2011.1842
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Studies of the superheavy elements form one of the pillars of the GSI research program. A unique combination of experimental facilities is installed at the GSI. Various topics, ranging from the synthesis of new elements, spectroscopy experiments to study the nuclear structures of the heaviest nuclei, highly accurate mass measurements beyond uranium, to chemical investigations of elements around element 114 and the synthesis of novel chemical superheavy element compound classes are being studied. This is complemented by fully relativistic quantum chemical calculations. As a recent highlight, the Pu-244(Ca-48, 3-4n)(288,289) 114 reaction was studied, leading to the observation of element 114 at the new gas-filled recoil separator TASCA.
引用
收藏
页码:67 / 74
页数:8
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