Alpha decay of the new isotope 215U

Alpha decay of the new isotope 215U
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新同位素 U-215 的 Alpha 衰变

DOI:
10.1140/epja/i2015-15088-9
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发表时间:
2015
影响因子:
2.7
通讯作者:
Xiao G. Q.
Xiao G. Q.
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Yang H. B.;Zhang Z. Y.;Wang J. G.;Gan Z. G.;Ma L.;Yu L.;Jiang J.;Tian Y. L.;Ding B.;Guo S.;Wang Y. S.;Huang T. H.;Sun M. D.;Wang K. L.;Zhou S. G.;Ren Z. Z.;Zhou X. H.;Xu H. S.;Xiao G. Q.

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新的缺中子同位素215 U是在180 W(40 Ar,5 n)215 U的完全聚变反应中产生的。蒸发残留物反冲从目标分离在飞行中从主光束的充气反冲分离器SHANS和随后确定的能量-位置-时间相关测量的基础上。测得~(215)U的α粒子能量和半衰期分别为8.428(30)MeV和0.73 - 0.29 ^{+1.33} ms。
Abstract.The new neutron-deficient isotope 215U was produced in the complete-fusion reaction 180W (40Ar, 5n) 215U. Evaporation residues recoiled from the target were separated in flight from the primary beam by the gas-filled recoil separator SHANS and subsequently identified on the basis of energy-position-time correlation measurement. The $\alpha$-particle energy and half-life of 215U were determined to be $8.428(30)$ MeV and $ 0.73_{-0.29}^{+1.33}$ ms, respectively.