Study of dielectronic recombination at the CSRm using lithium-like Ar15+ ions. (26th November 2015)

• Record Type: Journal Article
• Authors: Huang, Z K; Wen, W Q; Wang, H B; Xu, X; Zhu, L F; Chuai, X Y; Yuan, Y J; Zhu, X L; Han, X Y; Mao, L J; Li, J; Ma, X M; Yan, T L; Yang, J C; Xiao, G Q; Xia, J W; Ma, X
• Is Part Of: Physica scripta. Volume T166(2015:Nov.)
• Publication Date: 2015-11-26
• Subjects: dielectronic recombination -- lithium-like argon -- cooler storage ring; Physics -- Periodicals; 530.05
• DOI: 10.1088/0031-8949/2015/T166/014023
• Languages: English
• ISSNs: 0031-8949

Abstract

Abstract: The main cooler storage ring (CSRm) of the HIRFL facility in Lanzhou, China is equipped with an electron-cooler and denotes an ideal platform for dielectronic recombination (DR) experiments. In order to fully understand our DR experimental setup and especially the electron energy detuning system, we have performed a DR calibration experiment using the Li-like argon ions at the CSRm because Ar 15+ has a simple electronic structure and the DR spectrum can be calculated with an ultra-high precision and be compared with the existing experimental data. The experiment was carried out over the center-of-mass energy range 0–32 eV that includes all DR resonance associated with 2S1/2 → 2p1/2 and most of the 2S1/2 → 2p3/2 excitations. We present the details of the experimental technique and the DR experimental resonance spectrum of the Ar 15+ .