Highly charged ion approach to measure nuclear charge radii of Fr, Ra, and Rn isotopes for precision measurements

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-08-27 DOI:10.1016/j.nima.2025.170947

R. Silwal , E. Takacs , Y. Wang , A.A. Kwiatkowski , S.A. Blundell , H. Staiger , Dipti , A. Lapierre , J.D. Cardona , F. Maldonado Millán , G. O’Neil , A. Hosier , J.D. Gillaspy , Yu. Ralchenko , G. Gwinner

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引用次数: 0

Abstract

Conventional electron scattering and muonic atom spectroscopy techniques are challenging to apply to heavy ions unless the element has at least one stable or extremely long-lived isotope. To overcome this limitation, a recently introduced method for determining nuclear charge radii relies on extreme-ultraviolet (EUV) spectroscopy of the

D_{1}

line in highly charged Na-like ions. In this work, we present an experimental approach to measure the nuclear charge radii of isotopes of radioactive elements such as Fr, Ra, and Rn using this method at TRIUMF’s Ion Trap for Atomic and Nuclear Science (TITAN) instrument, located at the ISAC radioactive beam facility. We also explore the potential of using Na-like

D_{2}

lines in the soft x-ray region for future measurements.

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高精度测量Fr， Ra和Rn同位素核电荷半径的高电荷离子方法

传统的电子散射和介子原子光谱技术很难应用于重离子，除非该元素至少有一个稳定或极长寿命的同位素。为了克服这一限制，最近引入了一种测定原子核电荷半径的方法，该方法依赖于高电荷Na-like离子中D1线的极紫外（EUV）光谱。在这项工作中，我们提出了一种实验方法来测量放射性元素（如Fr， Ra和Rn）同位素的核电荷半径，使用这种方法在位于ISAC放射性束流设施的TRIUMF原子与核科学离子阱（TITAN）仪器上。我们还探索了在软x射线区域使用na样D2线进行未来测量的潜力。

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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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.