OPTICAL ISOTOPE SHIFT MEASUREMENTS USING COLLINEAR ION BEAM LASER SPECTROSCOPY AND THE CONFIGURATION OF THE NdII(23537)_(9/2)^(0) LEVEL  

作　　者：LU Fuquan WU Songmao WANG Yau sen SHI Wei SHI Peixiong SONG Linggen YANG Jianjun TANG Jiayong YANG Fujia 

机构地区：[1]Department of Nuclear Science,Fudan University,Shanghai 200433 [2]Center of Accelerator Based Atomic and Surface Physics,COAST(World Lab.)

出　　处：《Chinese Physics Letters》1990年第1期5-8,共4页中国物理快报（英文版）

摘　　要：The optical isotope shifts,of five even isotopes of neodymium have been measured by using collinear ion beam laser spectroscopy(CZBLS).Isotopically pure NdII ions with energy of 30ke V from an isotope separator were collinearly interacted with light from a tunable dye laser and selectively excited from a metastable level of 4f^(4) 5d^(6) K_(9/2) to the(23537)_(9/2)^(0) level by Doppler tuning technique.The resonant excitation frequency values for each Nd isotope with mass number of 142,144,146,148 and 150 were obtained.After the separation of the normal and specific mass shift and the field shift from the experimentally measured isotope shift,the configuration of the(23537)_(9/2)^(0),level was decomposed into 4f^(4)6p,4f^(3)5d^(2) and 4f^(3)5d6p,and their fractions,for the first time.were determined to be 0.12-0.13,0.88-0.85 and 0-0.02,respectively.

关 键 词：technique. LASER NEODYMIUM 

分 类 号：O57[理学—粒子物理与原子核物理]