| Главная страница > A setup for vacuum-ultraviolet spectroscopy of the $^{229}$Th low-energy isomer |
| Article | |
| Title | A setup for vacuum-ultraviolet spectroscopy of the $^{229}$Th low-energy isomer |
| Author(s) | Kraemer, Sandro (KU Leuven ; LMU, Garching) ; Chhetri, Premaditya (KU Leuven) ; Bara, Silvia (KU Leuven) ; Claessens, Arno (KU Leuven) ; De Witte, Hilde (KU Leuven) ; Elskens, Yens (KU Leuven) ; Ferrer, Rafael (KU Leuven) ; Kudryavtsev, Yuri (KU Leuven) ; Sels, Simon (KU Leuven) ; Van Den Bergh, Paul (KU Leuven) ; Van Duppen, Piet (KU Leuven) |
| Publication | 2023 |
| Number of pages | 3 |
| In: | Nucl. Instrum. Methods Phys. Res., B 542 (2023) 1-3 |
| In: | 19th International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), Daejeon, Korea, 3 - 7 Oct 2022 |
| DOI | 10.1016/j.nimb.2023.05.029 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE |
| Abstract | The ground-state transition of the low-energy isomer in $^{229}$Th has been proposed as the basis for the development of a novel optical clock as a tool for fundamental-physics studies. Vacuum-ultraviolet studies of the 𝛽-decay of 229Ac recently enabled to measure the de-excitation energy of the isomer with a sevenfold improvement in precision compared to previous results by directly observing photons from the isomer’s radiative decay. In this contribution, the setup used for this study and the systematic uncertainty on the measured photon wavelength is discussed. |
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