New isotope production of neutron-deficient actinide nucleus with N =126

N=126 缺中子锕系元素核的新同位素产生

• 批准号: 23740214
• 负责人: WAKABAYASHI Yasuo
• 金额: $ 2.91万
• 依托单位: Institute of Physical and Chemical Research (2012-2013)Japan Atomic Energy Agency (2011)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23740214/
• 关键词: 新同位体; 核構造; 核反応

In this study to evaluate new region arrised from the stability of N = 126 closed shell, the production experiments of new isotopes with Z >= 92 and close to N = 126 shell closure were performed.The experiments were carried out at RIKEN using RILAC and GARIS. We used fusion reactions to produce new isotopes. During the three year study period, the new transitions for 217(Z=92,N=125) were observed, and two new isotopes of 215U(Z=92,N=123) and 216U(Z=92,N=124) which were the most lightest uranium isotope were produced. These results are the first observation in the world.

为了评价N = 126壳层闭合稳定性所产生的新区域，在RIKEN利用RILAC和GARIS进行了Z >= 92和接近N = 126壳层闭合的新同位素的生产实验。我们用聚变反应来制造新的同位素。在三年的研究期间，观察到了217（Z=92，N=125）的新跃迁，产生了最轻的铀同位素215U（Z=92，N=123）和216U（Z=92，N=124）两个新同位素。这是世界上第一次观察到的结果。

项目成果

中性子魔法数126 領域の中性子欠損したアクチノイド原子核の新同位体合成

中子幻数126区域缺中子锕系元素核的新同位素合成

• 发表时间: 2013
• 作者: 若林泰生;西尾勝久;光岡真一;森本幸司;加治大哉;羽場宏光;西中一朗;牧井宏之;住田貴之;米田晃;森田浩介
• 通讯作者: 森田浩介

New isotope candidates, ^<215>U and ^<216>U

新候选同位素，^<215>U 和 ^<216>U

• 发表时间: 2014
• 期刊: RIKEN Accelerator Progress Report
• 作者: Y. Wakabayashi;K. Morimoto;D. Kaji;H. Haba;M. Takeyama;S. Yamaki;K. Tanaka;K. Nishio;M. Asai;M. Huang;J. Kanaya;M. Murakami;A. Yoneda;K. Fujita;Y. Narikiyo;T. Tanaka;S. Yamamoto;and K. Morita
• 通讯作者: and K. Morita

Attempt to synthesize a new neutron-deficient isotope, ^<216>U

尝试合成新的缺中子同位素，^<216>U

• 发表时间: 2012
• 期刊: RIKEN Accelerator Progress Report
• 作者: Y. Wakabayashi;K. Nishio;S. Mitsuoka;K. Morita;K. Morimoto;D. Kaji;H. Haba;T. Sumita;A. Yoneda;and Y. Gono
• 通讯作者: and Y. Gono