Measurement of the isotope shift and hyperfine structure splitting of Xe II by collinear fast ion beam laser spectroscopy.
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| Other Authors: | , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
1986.
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| Subjects: | |
| Online Access: | Link to ProQuest copy Link to OAKTrust copy |
| Abstract: | The isotope shifts and hyperfine structure splittings of nine stable xenon isotopes in the mass range from 124 to 136 have been measured using the electronic transition 5d⁴D[subscript 7/2] - 6p⁴P⁰ [subscript 5/2] in the Xe II spectrum. The method of collinear fast ion beam laser spectroscopy has been utilized to achieve Doppler-free resolution and a high sensitivity. An ion beam apparatus consisting of an Einzel lens, a switch magnet and two electrostatic quadrupole triplets was designed to transport the ions from an on-line ion source through the TRISTAN isotope separator to the interaction region where, at resonance, the fluorescence signal was observed. A line shape analysis, based on an asymmetrical exponential function, was developed to interpret the recorded data. Changes in the mean square charge radii δ(r²)[superscript AA'] for the chain of stable xenon isotopes were extracted from the measured isotope shifts. The hyperfine structure constants A and B, the nuclear magnetic dipole moment μ[subscript I], and the electric quadrupole moment Q were evaluated from the splittings. The effect of the nuclear deformation below the magic number 82 is discussed in the two-parameter liquid drop model and the three-parameter droplet model. A comparison of the δ(r²)[superscript AA'] of Xe with those of the neighboring elements of Cs and Ba is made. |
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| Item Description: | Typescript (photocopy). Vita. |
| Physical Description: | xi, 128 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references (leaves 119-122). |