| 266Bh的α衰变性质研究(英文) |
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| 引用本文： | 秦芝,吴晓蕾,丁华杰,吴王锁,黄文学,雷祥国,徐岩冰,袁晓华,郭斌,杨维凡,甘再国,范红梅,郭俊盛,徐瑚珊,肖国青.266Bh的α衰变性质研究(英文)[J].原子核物理评论,2006,23(4):404-407. |
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| 作者姓名： | 秦芝 吴晓蕾 丁华杰 吴王锁 黄文学 雷祥国 徐岩冰 袁晓华 郭斌 杨维凡 甘再国 范红梅 郭俊盛 徐瑚珊 肖国青 |
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| 作者单位： | 1 中国科学院近代物理研究所, 甘肃 兰州 730000; 2 兰州大学化学化工学院, 甘肃 兰州 730000 |
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| 摘 要： | 报道了利用兰州重离子研究装置提供的26Mg重离子束流轰击243Am靶产生和鉴别已知超重核素266Bh的实验结果。利用转轮收集探测装置依靠母子核遗传关系通过观测Bh同位素与其子核Db和Lr之间的α-α关联事件来鉴别266Bh。实验中观测到266Bh的α能量为（9.03 ± 0.08）MeV， 与日本理化学研究所在合成113号元素中第一个衰变链中观测到266Bh的α能量为9.07 MeV相近。 266Bh的半衰期为0.66+0.59-0.26 s， 从实验得到的Qα也符合Z=107的Qα随中子数变化的系统性。The isotope of 266Bh was produced and identified definitely in bombardments of 243Am target with 162 MeV 26Mg ions at HIRFL. Identification was made by observation of correlated α particle decays between the Bh isotopes and their Db and Lr daughters using a rotating wheel system. The measured α energy for 266Bh is (9.03±0.08) MeV, and this value close to the 9.07 MeV for 266Bh observed in the first chain of element 113 at RIKEN. The half life of 266Bh is 0.66+0.59 -0.26 s. The Qα value derived from this experiment fits well into the general trend in a “Qα N systematics” for the isotopes with Z = 107.
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| 关 键 词： | 266Bh Eα 半衰期 转轮系统 |
| 文章编号： | 1007-4627（2006）04-0400-05 |
| 收稿时间： | 2006-10-08 |
| 修稿时间： | 2006-10-082006-10-20 |
Alpha-decay Properties of 266Bh |
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| QIN Zhi,WU Xiao-lei,DING Hua-jie,WU Wang-suo,HUANG Wen-xue,LEI Xiang-guo,XU Yan-bing,YUAN Xiao-hua,GUO Bin,YANG Wei-fan,GAN Zai-guo,FAN Hong-mei,GUO Jun-sheng,XU Hu-shan,XIAO Guo-qing.Alpha-decay Properties of 266Bh[J].Nuclear Physics Review,2006,23(4):404-407. |
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| Authors: | QIN Zhi WU Xiao-lei DING Hua-jie WU Wang-suo HUANG Wen-xue LEI Xiang-guo XU Yan-bing YUAN Xiao-hua GUO Bin YANG Wei-fan GAN Zai-guo FAN Hong-mei GUO Jun-sheng XU Hu-shan XIAO Guo-qing |
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| Affiliation: | 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 2 College of Chemical Engineering, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | The isotope of 266Bh was produced and identified definitely in bombardments of 243Am target with 162 MeV 26Mg ions at HIRFL. Identification was made by observation of correlated α-particle decays between the Bh isotopes and their Db and Lr daughters using a rotating wheel system. The measured α energy for 266Bh is (9.03±0.08) MeV, and this value close to the 9.07 MeV for 266Bh observed in the first chain of element 113 at RIKEN. The half-life of 266Bh is 0.66+0.59 -0.26 s. The Qα value derived from this experiment fits well into the general trend in a "Qα-N systematics" for the isotopes with Z = 107. |
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| Keywords: | 266Bh 266Bh half-life rotating wheel system |
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