Sympathetic cooling of trapped Th3+alpha-recoil ions for laser spectroscopy

被引：2

作者：

Zitzer, G. ^{[1
]}

Tiedau, J. ^{[1
]}

Okhapkin, M. V. ^{[1
]}

Zhang, K. ^{[1
]}

Mokry, C. ^{[2
,3
]}

Runke, J. ^{[2
,3
,4
]}

Duellmann, Ch. E. ^{[2
,3
,4
]}

Peik, E. ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

[2] Johannes Gutenberg Univ Mainz, Dept Chem, TRIGA Site, D-55099 Mainz, Germany

[3] Helmholtz Inst Mainz, D-55099 Mainz, Germany

[4] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

来源：

PHYSICAL REVIEW A | 2024年 / 109卷 / 03期

基金：

欧洲研究理事会;

关键词：

TH-229; CRYSTALLIZATION; TRANSITION; ENERGY; RADII;

D O I：

10.1103/PhysRevA.109.033116

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Sympathetic cooling of Th3+ ions is demonstrated in an experiment where 229Th and 230Th are extracted from uranium recoil -ion sources and are confined in a linear Paul trap together with laser -cooled 88Sr+ ions. Because of their similar charge -to -mass ratios the ions are closely coupled and arrange themselves into two -species Coulomb crystals containing up to a few tens of Th3+ ions. To show the suitability of the sympathetically cooled Th3+ ions for high -resolution laser spectroscopy, the absolute frequencies and isotope shifts of 5F5/2 -> 6D5/2 and 5F7/2 -> 6D5/2 transitions of 230Th3+ are measured. The system is developed for hyperfine spectroscopy of electronic transitions of nuclear ground and isomeric states in 229Th3+.

引用

页数：8

共 49 条

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