Observation of new neutron-deficient isotopes with Z≥92 in multinucleon transfer reactions
Observation of new neutron-deficient isotopes with Z≥92 in multinucleon transfer reactions
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DOI：
10.1016/j.physletb.2015.07.006
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发表时间：
2015-09
影响因子：
4.4
通讯作者：
H. M. Devaraja;S. Heinz;O. Beliuskina;V. Comas;S. Hofmann;C. Hornung;G. Münzenberg;K. Nishio
中科院分区：
文献类型：
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作者：
H. M. Devaraja;S. Heinz;O. Beliuskina;V. Comas;S. Hofmann;C. Hornung;G. Münzenberg;K. Nishio
在48Ca+248 cm深度非弹性多核子转移反应中，我们观察到约100个剩余核，质子数介于Z=82和Z=100之间。其中有5种新的贫中子同位素：216U、219Np、223Am、229Am和233BK。作为转移产物的分离器，我们使用了GSI的速度滤波船，而同位素鉴定是通过原子核的α衰变链来进行的。这些初步的结果表明，多核子转移反应与这里应用的快速灵敏的分离和检测技术相结合，有望在最重的原子核区域合成新的同位素。
In deep inelastic multinucleon transfer reactions of 48 Ca+ 248 Cm we observed about 100 residual nuclei with proton numbers between Z= 82 and Z= 100. Among them, there are five new neutron-deficient isotopes: 216 U, 219 Np, 223 Am, 229 Am and 233 Bk. As separator for the transfer products we used the velocity filter SHIP of GSI while the isotope identification was performed via the α decay chains of the nuclei. These first results reveal that multinucleon transfer reactions together with here applied fast and sensitive separation and detection techniques are promising for the synthesis of new isotopes in the region of heaviest nuclei.