中能重离子反应类熔合核厚靶产额与超重元素合成
结题报告
批准号:
19975058
项目类别:
面上项目
资助金额:
16.5 万元
负责人:
张立
学科分类:
A2702.核反应与重离子核物理
结题年份:
2002
批准年份:
1999
项目状态:
已结题
项目参与者:
赵进华、郑继文、白晓薇、胡青元、王同庆、郭斌、范红梅、赵莉莉、王旭东
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中文摘要
中能O-18、Ar-40及Kr-86等重离子束轰击Lu-175、Pb-208及U-238厚靶。在线同位素分离器闹柿恐付掀嗳壬椎腪鉴别。常规衰变探测辅以注入焦平面上位置灵敏探测器的级联α衰变分析。以获得平均生成截面的几nb以上,半寿命长于1s的全熔合及类熔合蒸发余核的厚靶产额分布。探索超重元素可能的新合成方式和鉴别途径。尝试鉴别已知超重元素新同位素。
英文摘要
We have been consanguineously following up the international activities and progresses on the research field for superheavy elements during the term of the present subject. We put our attentions to collect and analyze the information on the newest development on the field of superheavy research, and devoted our effort to explore a physical and technical path, which could lead to synthesize and identify some new nuclides on the superheavy-element region by using the experimental conditions available in the present Chinese laboratories. Now, we have suggested such a primary project in order to realize this aim which has been reported for many times at different occasions, for example in "The suggestion report for opening an emphases project on superheavy research" which was submitted to NNSF, or on the workshop about superheavy research as well as on the relative series. All the works would play a positive and active role for establishing the emphases project for superheavy research as well as for openning some new ideas on superheavy research.on the other hand we continued the studies on the thick-target yields induced in bombardment of heavy-element thick targets by intermediate energy heavy ions. The measurement for the yields was expanded from the nuclei below target to that upper target. We made deeply analyzing for the exist experimental results for thick-target yields obtained for the products below target and some valuable conclusions were derived. Besides, the investigation for the nuclear level construction of the nucleus 208Tl, which should be very important for nuclear shell mode, has been finally finished, and obtained a good comments from the referee of the journal Eur. Phys. A.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
DOI:--
发表时间:--
期刊:中国学术期刊文摘
影响因子:--
作者:张立;胡青元;郑继文 等
通讯作者:郑继文 等
DOI:--
发表时间:--
期刊:Chinese Physics Letters,
影响因子:--
作者:张立;赵进华;郑继文 等
通讯作者:郑继文 等
DOI:--
发表时间:--
期刊:核技术
影响因子:--
作者:张立;胡青元;赵进华 等
通讯作者:赵进华 等
A new measurement of 208Tl levels
208Tl 水平的新测量
DOI:10.1140/epja/i2002-10129-2
发表时间:2003-03
期刊:Eur. Phys. JA,
影响因子:--
作者:张立;胡青元;赵进华 等
通讯作者:赵进华 等
DOI:--
发表时间:--
期刊:原子核物理评论
影响因子:--
作者:张立
通讯作者:张立
中能重离子反应类熔合蒸发余核与新超重元素合成
中能重离子反应产物中新核素的搜索,鉴别和衰变研究
重核区新丰中子远离核和BETA延发中子先驱核合成
国内基金
海外基金