Persistency of N=32 Subshell in Scandium Isotopes Established through Isochronous Mass Measurement for 52-54Sc

• 作者: HIRFL-CSR Mass Measurement Collaboration Xu Xing
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报:英文版
• 学科: 物理学
• 关键词: experiment THICK beyond
• 年，卷（期）: 2018,（1）
• 页码范围: 50-50
• 页数: 1页
• 分类号: O57

摘要

The nuclear shell structure has been found to change when moving towards the drip lines.In order to investigate N=32 subshell evolution beyond the calcium isotopes[1],the isochronous mass spectrometry has been applied in the storage ring CSRe to measure the masses of the neutron-rich 52−54Sc.This experiment was performed at the end of 2011.In the experiment,The primary beam 86Kr28+ions were accumulated in CSRm and then accelerated to an energy of 460.65 Mev/u.The 86Kr28+ions were fast extracted and then focused on a15 mm thick beryllium target which was placed at the entrance of the RIBLL2(an in-flight fragment separator).