中国物理B ›› 1996, Vol. 5 ›› Issue (7): 493-498.doi: 10.1088/1004-423X/5/7/002

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

A NEW EXPERIMENTAL METHOD IN THE STUDY OF IONIC RYDBERG STATES BY RESONANCE IONIZATION MASS SPECTROSCOPY

黄雯, 许祥源   

  1. Department of Modern Applied Physics, Tsinghua University, Beijing 100084, China
  • 收稿日期:1995-03-25 修回日期:1995-11-15 出版日期:1996-07-20 发布日期:1996-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

A NEW EXPERIMENTAL METHOD IN THE STUDY OF IONIC RYDBERG STATES BY RESONANCE IONIZATION MASS SPECTROSCOPY

HUANG WEN (黄雯), XU XIANG-YUAN (许祥源)   

  1. Department of Modern Applied Physics, Tsinghua University, Beijing 100084, China
  • Received:1995-03-25 Revised:1995-11-15 Online:1996-07-20 Published:1996-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： We report a new method for detecting highly excited ions. With a strong constant electric field ionization following the extracting of ions by a pulsed electric field in a time-of-flight mass spectrometer, the direct multi-photon ionization background can be eliminated in laser multi-step resonance ionization mass spectroscopy of ionic Rydberg states. A high detection efficiency call be obtained for law members of ionic Rydberg states by use of this method. We have applied the method in the study of the spectroscopy of ionic Rydberg states ia ytterbium.

Abstract: We report a new method for detecting highly excited ions. With a strong constant electric field ionization following the extracting of ions by a pulsed electric field in a time-of-flight mass spectrometer, the direct multi-photon ionization background can be eliminated in laser multi-step resonance ionization mass spectroscopy of ionic Rydberg states. A high detection efficiency call be obtained for law members of ionic Rydberg states by use of this method. We have applied the method in the study of the spectroscopy of ionic Rydberg states ia ytterbium.

中图分类号:  (Multiphoton ionization and excitation to highly excited states)

  • 32.80.Rm
32.10.Bi (Atomic masses, mass spectra, abundances, and isotopes)