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以~(64)Zn(~(12)C,2np)~(73)Br反应得到~(73)Br,经过氦喷嘴传输系统和快速化学分离后进行了γ单谱、γ-γ,符合和角关联测量,得到了~(73)Br的27条γ射线能量和相对强度,其中102.1、137.2、166.2、249.0、345.5、363.8、381.5、385.7和390.2keV9条γ射线以及192.4、537.4和574.1keV 3条能级为本工作首次测得.建立了~(73)Br的衰变纲图,由logft值和角关联系数测量值推测了90.4keV能级的自旋. 相似文献
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197Au were irradiated with 47 MeV/u 12C ions. Iridium was produced via the multinucleon transfer reactions in bombardments of 197Au with 12C. and was separated radiochemically from Au and the mixture of the reaction products. The γ radioactivities of Ir isotopes were measured by using a HPGe detector. The production cross sections of Ir isotopes were determined from activities of Ir isotopes at the end of bombardment and the other relative data. It has been found that the cross sections for neutron-rich isotopes of iridium show an exponential dependence on the values of Qgg. Our experimental results also demonstrate lack of correlation between the cross sections and Qgg in the case of neutron-deficient isotopes of iridium. The fact can be explained from that neutron-rich isotopes of iridium were produced in the deep inelastic transfer reactions. 相似文献
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本文简述在中科院近物所HIRFL上发现的第一个新核素208Hg的合成和鉴别,兼论利用HIRFL提供的中能重离子束开展远离β稳定线核素合成和衰变研究的优势、困难以及拟采用的物理和技术路线。 The synthesis and identification of the first discovered new nuclide 208Hg on HIRFL(Heavy Ion Research Facility of Lanzhou) were described. In this paper the superiorities, difficultiesas well as the physical and technical line about the synthesis and decay study for the nuclides far fromβ-stability line to be made at HIRFL were discussed. 相似文献
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