中国物理B ›› 1993, Vol. 2 ›› Issue (12): 917-924.doi: 10.1088/1004-423X/2/12/005

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NEW AUTOIONIZING STATES NEAR THE FIRST IONIZATION LIMIT OF RARE EARTH ELEMENT Dy

周海军, 许祥源, 黄雯, 陈瓞延   

  1. Department of Modern Applied Physics, Tsinghua University, Beijing 100084, China
  • 收稿日期:1993-02-25 出版日期:1993-12-20 发布日期:1993-12-20

NEW AUTOIONIZING STATES NEAR THE FIRST IONIZATION LIMIT OF RARE EARTH ELEMENT Dy

ZHOU HAI-JUN (周海军), XU XIANG-YUAN (许祥源), HUANG WEN (黄雯), CHEN DIE-YAN (陈瓞延)   

  1. Department of Modern Applied Physics, Tsinghua University, Beijing 100084, China
  • Received:1993-02-25 Online:1993-12-20 Published:1993-12-20

摘要: This paper describes the investigation of autoionizing states near the first ionization limit of rare-earth element Dy. The 62, 51, 97 and 25 new autoionizing states resulting from the states of 4f10(5I8)6s6p(3P02)3I07, 4f9 (6H0)5d2(3F)(8G0)6s9G07, 4f9(6F0)5d6s2 7H07 and 4f95d6s2 7K07, respectively, were found by using a laser resonance ionization time-of-flight mass spectrometer (LRI-TOFMS), The photoionization efficiencies for different channels were compared with each other. In addition, the Shore-Fano parameters of autoionizing states were determined by a nonlinear fitting program.

Abstract: This paper describes the investigation of autoionizing states near the first ionization limit of rare-earth element Dy. The 62, 51, 97 and 25 new autoionizing states resulting from the states of 4f10(5I8)6s6p(3P02)3I07, 4f9 (6H0)5d2(3F)(8G0)6s9G07, 4f9(6F0)5d6s2 7H07 and 4f95d6s2 7K07, respectively, were found by using a laser resonance ionization time-of-flight mass spectrometer (LRI-TOFMS), The photoionization efficiencies for different channels were compared with each other. In addition, the Shore-Fano parameters of autoionizing states were determined by a nonlinear fitting program.

中图分类号:  (Autoionization)

  • 32.80.Zb
32.80.Fb (Photoionization of atoms and ions) 32.10.Bi (Atomic masses, mass spectra, abundances, and isotopes)