書誌事項
- タイトル別名
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- DEVELOPMENT OF CESIUM ATOM SUPPLY SYSTEM IN LIQUID NITROGEN FOR PRESSURE-DEPENDENT MEASUREMENT OF HYPERFINE STRUCTURE SPLITTING OF ATOMS IN SUPERFLUID HELIUM
抄録
It is known that hyperfine structure energy splitting of atoms in superfluid helium (He II) is slightly different from that in vacuum. We have been developing a variable pressure vessel for laser RF/MW double resonance spectroscopy of Rb and Cs atoms in He II in order to measure the hyperfine structure splitting energy at different pressures and to clarify the effect of pressure on the interaction of atoms with He II. This study aims to develop a Cs atoms supply system in a variable pressure vessel for measurement of hyperfine structure splitting of cesium atoms in He II at various pressures ; however, as a pilot experiment, liquid nitrogen was used instead of He II in this study. First, the operation of laser-induced fluorescence (LIF) detection system using a photon counting method with a photomultiplier tube (PMT) was verified in a gas cell filled with Cs atoms. In an experiment using the ablation method to supply cesium atoms into a pressure-variable vessel filled with liquid nitrogen, emission from cesium atoms was confirmed. This result suggests that Cs atoms were supplied in a variable pressure vessel filled with liquid nitrogen.
収録刊行物
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- 法政大学大学院紀要. 理工学研究科編
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法政大学大学院紀要. 理工学研究科編 64 1-7, 2023-03-24
法政大学大学院理工学研究科
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詳細情報 詳細情報について
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- CRID
- 1390578050264145536
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- HANDLE
- 10114/00026424
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- ISSN
- 24368083
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
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- 抄録ライセンスフラグ
- 使用可