超流動ヘリウム中Ag原子の超微細構造間隔測定

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書誌事項

タイトル別名

• MEASUREMENT OF HYPERFINE STRUCTURE SPLITTING OF SILVER ATOMS IN SUPERFLUID HELIUM

抄録

type:Article

We have been developing a laser spectroscopy technique called OROCHI to study nuclear structure of low production yield unstable nuclei. In OROCHI, the energetic ion beams generated at an accelerator are stopped in superfluid helium with high efficiency (～100%) and neutralized. Zeeman structure splitting of atoms is measured using laser-radio frequency double resonance method to determine their nuclear spins. We can also derive nuclear electromagnetic moments from the measurement of hyperfine structure splitting using laser-microwave double resonance method. It is also important to develop measurement method for various atomic species without using accelerators. For this purpose we introduce stable isotopes into superfluid helium by laser ablation method. We have so far successfully applied OROCHI to alkali atoms such as Rb and Cs. However, studies of atomic species other than alkalis are limited. In this study, we successfully introduced Ag atoms into superfluid helium using two-step laser sputtering by changing the wavelength of the second laser. As a result, we successfully measured the hyperfine structure splitting of Ag atoms.

収録刊行物

• 法政大学大学院紀要. 理工学・工学研究科編

  法政大学大学院紀要. 理工学・工学研究科編 60 1-6, 2019-03-31

  法政大学大学院理工学研究科

キーワード

• Laser spectroscopy
• Superfluid helium
• Laser ablation
• hyperfine structure splitting

詳細情報

• CRID: 1390572174778391040
• NII論文ID: 120006715047
• NII書誌ID: AA12677220
• ISSN: 21879923
• DOI: 10.15002/00022071
• Web Site: http://hdl.handle.net/10114/00022071
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles