Partial Identification of visible lines from W24+ ions in an electron-beam ion trap

Journal of Physics B Pub Date : 2023-10-18 DOI:10.1088/1361-6455/acfbce

Bingli Li, Fanhu Qu, Ning Fu, Yiming Xie, Xin Liu, Yang Yang, Baoren Wei, Yaming Zou, Jun Xiao

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Abstract

Abstract To better understand the structure of the open 4 f shell, the spectroscopic data in the 420–600 nm range of the highly charged ions of W 24+ obtained with an electron beam ion trap are presented. Detailed collisional-radiative (CR) modeling has been used to simulate the spectrum. The atomic structure data for the CR modeling were calculated using the relativistic many-body perturbation theory (RMBPT) and the large-scale relativistic configuration interaction (RCI) method implemented in the flexible atomic code. The two set theoretical calculation wavelengths for six observed lines are in reasonable agreement with the experimental observations, with average deviations of 0.61% for RMBPT and 1.75% for RCI. The relative intensities of the identified lines have also been investigated, revealing a strong correlation to electron density from n e = 10 9 to 10 11 cm −3 .

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电子束离子阱中W24+离子可见线的部分识别

摘要:为了更好地了解w24 +的开放4f壳层结构，本文给出了用电子束离子阱获得的w24 +高电荷离子在420 ~ 600 nm范围内的光谱数据。详细的碰撞辐射(CR)模型被用来模拟光谱。利用相对论多体摄动理论(RMBPT)和柔性原子代码实现的大尺度相对论组态相互作用(RCI)方法计算了CR模型的原子结构数据。6条观测线的两组理论计算波长与实验观测值吻合较好，平均偏差为0.61%，平均偏差为1.75%。对所识别谱线的相对强度也进行了研究，揭示了从ne = 10 9到10 11 cm−3与电子密度的强相关性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Physics B

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