Open AccessAn efficient method for producing 9Be+ ions using a 2 + 1 resonance-enhanced multiphoton ionization process
Author(s) -
Min Li,
Yong Zhang,
Qian-Yu Zhang,
Wen-Li Bai,
Sheng-Guo He,
Wen-Cui Peng,
Xin Tong
Publication year - 2022
Publication title -
journal of physics. b, atomic molecular and optical physics/journal of physics. b, atomic, molecular and optical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 121
eISSN - 1361-6455
pISSN - 0953-4075
DOI - 10.1088/1361-6455/ac4c8f
Subject(s) - ionization , ion , atomic physics , resonance (particle physics) , electron ionization , atmospheric pressure laser ionization , ion source , materials science , analytical chemistry (journal) , chemistry , physics , organic chemistry , chromatography
We report a method of creating pure 9 Be + ions by a 2 + 1 resonance-enhanced multiphoton ionization for the ionization potential of 75 192.64(6) cm −1 (133 nm). The efficient generation of 9 Be + ions has been realized in a segmented linear ion trap. The average loading rates with a 10 ns, 1 mJ laser at 310 nm and 306 nm are 3.8 and 1.3 ions per pulse, respectively. This method has the advantage of reducing the electron contamination to the ion trap electrodes greatly. It also reduces the requirement of single-photon energy while satisfying the need for ionization probability and can be applied to other atoms with high ionization thresholds.