Lifetime measurement of the 3d^(9) ^(2)D_(3/2) metastable level in Mo^(15+)at an electron beam ion trap  

作　　者：刘佳林 王银涛 屠秉晟 黄良玉 司然 李冀光 张明武 傅云清 邹亚明 姚科 Jialin Liu;Yintao Wang;Bingsheng Tu;Liangyu Huang;Ran Si;Jiguang Li;Mingwu Zhang;Yunqing Fu;Yaming Zou;Ke Yao(Shanghai EBIT laboratory,and Key Laboratory of Nuclear Physics and Ion-Beam Application,Institute of Modern Physics,Fudan University,Shanghai 200433,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]Shanghai EBIT laboratory,and Key Laboratory of Nuclear Physics and Ion-Beam Application,Institute of Modern Physics,Fudan University,Shanghai 200433,China [2]Institute of Applied Physics and Computational Mathematics,Beijing 100088,China [3]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China

出　　处：《Chinese Physics B》2023年第10期400-404,共5页中国物理B（英文版）

基　　金：Project supported by the National Key R&D Program of China(Grant No.2022YFA1602500);the National Natural Science Foundation of China(Grant No.12274352)。

摘　　要：An experimental measurement of the lifetime of 3d^(9) ^(2)D_(3/2) metastable level in Mo^(15+)is reported in this work.The Mo^(15+)ions are produced and trapped in an electron beam ion trap with a magnetic field of 0.65 T.The decay photons emitted from 3d^(9) ^(2)D_(3/2) level are subsequently recorded via a cooled photomultiplier tube.Through meticulous scrutiny of potential systematic uncertainties affecting the measurement outcomes,we have determined the lifetime of Mo^(15+)3d^(9)2D_(3/2)metastable level to be 2.83(22)ms.The experimental result provides a clear distinguishment from existing calculations based on various theoretical approaches.

关 键 词：lifetime measurement molybdenum ions metastable levels electron beam ion trap(EBIT) 

分 类 号：O562[理学—原子与分子物理]