排序方式: 共有11条查询结果,搜索用时 15 毫秒
1.
FENG XiChen GUO YingXiang ZHOU XiaoHong LEI XiangGuo HUANG WenXue HE JianJun ZHU ShaoFei LIU Zhong ZHANG YuHu LUO YiXiao WEN ShuXian YUAN GuanJun WU XiaoGua 《中国物理C(英文版)》2000,24(4):359-363
The high-spin states of 206At have been studied in the 197An (12C, 3n)206At reaction at 12C energies from 60 to 80 MeV using technique of in-beam γ-ray spectroscopy. Measurements of Tray excitation functions, γ-γ-t coincidences, and y-ray angular distributions were performed. A level scheme for 206At, including a 10- isomer with a measured half-life of 908±400 ns, was established for the first the. The characteristics of the 10- isomers in doubly edd 206At nuclei were stressed. 相似文献
2.
LIN ChengJian XU XinXing JIA HuiMing YANG Feng JIA Fei WU ZhenDong ZHANG ShiTao LIU ZuHua ZHANG HuanQiao XU HuShan SUN ZhiYu WANG JianSong HU ZhengGuo WANG Meng CHEN RuoFu ZHANG XueYing LI Chen LEI XiangGuo XU ZhiGuo XIAO GuoQing & ZHAN WenLong China Institute of Atomic Energy P. O. Box Beijing China 《中国科学:物理学 力学 天文学(英文版)》2011,(Z1)
Two-proton emissions from the excited states of 17,18Ne, 28P and 28,29S were investigated experimentally by the radioactive beams bombarding on the 197Au target via the Coulomb excitation. The complete-kinematics measurements were actualized by the stacks of silicon-strip detectors and CsI+PIN array detectors. The invariant mass of final systems as well as the relative momentum, opening angle, and relative energy of the two emitted protons was reconstructed under the framework of relativ istic kinematics. V... 相似文献
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利用能量为60-80MeV的12C束流,通过197Au(12C,3n) 206 At反应研究了206At核的高自旋能级结构. 用7台BGO(AC)HPGe探测器和一台用于探测低能γ射线的平面型HPGe探测器进行了γ射线的激发函数、γ-γ-t符合及γ射线的角分布测量. 基于这些测量,首次建立了包括25条γ跃迁的206At高自旋能级纲图. 确定了一个半寿命为(908±400)ns、自旋和宇称为10-的同质异能态. 基于较重的双奇核 208,210At能级结构的系统性,对206At的10-同质异能态进行了讨论. 相似文献
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利用能量为60-80MeV的~(12)C束流,通过~197An(~(12)C,3n)~206At反应研究了~206At核的高自旋能级结构.用7台BGO(AC)HPGe探测器和一台用于探测低能γ射线的平面型HPGe探测器进行了γ射线的激发函数、γ-γ-t符合及γ射线的角分布测量.基于这些测量,首次建立了包括25条γ跃迁的~206At高自旋能级纲图.确定了一个半寿命为(908±400)ns、自旋和宇称为10的同质异能态.基于较重的双奇核~(208,210 )At能级结构的系统性,对~(206)At的10~-同质异能态进行了讨论. 相似文献
6.
HE JianJun HU Jun XU ShiWei CHEN ZhiQiang ZHANG XueYing WANG JianSong YU XiangQing ZHANG LiYong LI Long YANG YanYun MA Peng ZHANG XueHeng HU ZhengGuo GUO ZhongYan XU Xing YUAN XiaoHua LU Wan YU YuHong ZANG YongDong TANG ShuWen YE RuiPing CHEN JinDa JIN ShiLun DU ChengMing WANG ShiTao MA JunBing LIU LongXiang BAI Zhen LEI XiangGuo SUN ZhiYu ZHANG YuHu ZHOU XiaoHong XU HuShan SU Jun LI ErTao WANG HongWei ... 《中国科学:物理学 力学 天文学(英文版)》2011,(Z1)
The proton resonant properties in 18Ne, which determine the reaction rate of the key stellar 14O(α,p)17F reaction, have been studied by using a technique of proton resonant elastic scattering of 17F+p. A 4.22 MeV/nucleon 17F radioactive ion (RI) beam was produced via a projectile-fragmentation reaction, and separated by a Radioactive Ion Beam Line in Lanzhou (RIBLL). By bombarding a thick (CH2)n target, the energy spectra of the recoiled protons were measured by two ΔE-E silicon telescopes at the center-of-... 相似文献
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The β+/EC decay of doubly odd nucleus ^176Ir has been studied via the ^146Nd(^35Cl, 5n7) heavy ion fusion evaporation reaction at 210MeV bombarding energy. With the aid of a helium-jet recoil fast tape transport system, the reaction products were transported to a low-background location for measurement. Based on the data analysis, the previously known γ rays from the decay of ^176Ir are proven. Moreover, three new excited levels and ten new γ rays are assigned to ^176Os. The time spectra of typical γ rays clearly indicate a long-lived low-spin isomer in ^176Ir. 相似文献
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ZHANG YuHu ZHANG ShuangQuan HUANG WenXue ZHOU XiaoHong FENG XiChen XU Xiao LEI XiangGuo GUO YingXiang ZHU ShaoFei HE JianJun WANG ShuJin LIU Zhong LUO YiXiao 《中国物理C(英文版)》2000,24(4):369-372
High spin states in 174Re have been studied via the 159Tb (20Ne, 5nγ) 174Re reaction through excitation function, X-γ and γ-γ coincidence measurements. A stretched E2 cascade has been identified and assigned to be the doubly decoupled band band on the л1/2-[541]⊙v1/2-[521] configuration. Other two bands with semidecoupled and strongly coupled characters have been found and their quasiparticle configurations are qualitatively discussed. 相似文献
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YeBing Xing XiaoHong Zhou YuHu Zhang YingXiang Guo Long Ma XiangGuo Lei WenTao Guo M. Oshima Y. Toh M. Koizumi A. Osa Y. Hatsukawa FuRong Xu M. Sugawara 《中国科学G辑(英文版)》2008,51(8):1053-1071
High-spin states in 187Pt were studied via the 173Yb(18O, 4n) reaction. Rotational bands based on the νi13/2, ν7/2−[503], νi2
13/2νj, ν3/2−[512] and ν1/2−[521] configurations were observed, and interpreted within the framework of the cranked shell model. The TRS calculations
show that the νi13/2 band has an appreciable negative γ deformation, and the negative-parity bands tend to have a near prolate shape with small positive γ values. Experimental values of B(M1)/B(E2) ratios have been extracted and compared with theoretical values from the semi-classical D?nau and Frauendof approach,
strongly suggesting a low frequency πh9/2 alignment in the ν7/2−[503] band.
Supported by the National Natural Science Foundation of China (Grant Nos. 10475097 and 10505025) and the Chinese Academy of
Sciences 相似文献
10.
He JianJun Hu Jun Xu ShiWei Chen ZhiQiang Zhang XueYing Wang JianSong Yu XiangQing Zhang LiYong Li Long Yang YanYun Ma Peng Zhang XueHeng Hu ZhengGuo Guo ZhongYan Xu Xing Yuan XiaoHua Lu Wan Yu YuHong Zang YongDong Tang ShuWen Ye RuiPing Chen JinDa Jin ShiLun Du ChengMing Wang ShiTao Ma JunBing Liu LongXiang Bai Zhen Lei XiangGuo Sun ZhiYu Zhang YuHu Zhou XiaoHong Xu HuShan Su Jun Li ErTao Wang HongWei Tian WenDong Li XiangQing 《中国科学:物理学 力学 天文学(英文版)》2011,54(1):32-36
The proton resonant properties in 18Ne, which determine the reaction rate of the key stellar 14O(α,p)17F reaction, have been studied by using a technique of proton resonant elastic scattering of 17F+p. A 4.22 MeV/nucleon 17F radioactive ion (RI) beam was produced via a projectile-fragmentation reaction, and separated by a Radioactive Ion Beam Line in Lanzhou (RIBLL). By bombarding a thick (CH2) n target, the energy spectra of the recoiled protons were measured by two ΔE-E silicon telescopes at the center-of-mass scattering angles of θ c.m.≈175°±5°, θ c.m.≈152°±8°, respectively. Several proton resonances in 18Ne were observed clearly. A further R-matrix analysis of the experimental data is under way to determine the resonant parameters. The present work reports the preliminary results briefly. 相似文献