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Advancing Radiation-Detected Resonance Ionization towards Heavier Elements and More Exotic Nuclides

Warbinek, Jessica ; Anđelić, Brankica ; Block, Michael ; Chhetri, Premaditya ; Claessens, Arno ; Ferrer, Rafael ; Giacoppo, Francesca ; Kaleja, Oliver ; Kieck, Tom ; Kim, EunKang ; Laatiaoui, Mustapha ; Lantis, Jeremy ; Mistry, Andrew ; Münzberg, Danny ; Nothhelfer, Steven ; Raeder, Sebastian ; Rey-Herme, Emmanuel ; Rickert, Elisabeth ; Romans, Jekabs ; Romero-Romero, Elisa ; Vandebrouck, Marine ; Duppen, Piet van ; Walther, Thomas (2022):
Advancing Radiation-Detected Resonance Ionization towards Heavier Elements and More Exotic Nuclides. (Publisher's Version)
In: Atoms, 10 (2), MDPI, e-ISSN 2218-2004,
DOI: 10.26083/tuprints-00021280,

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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: Advancing Radiation-Detected Resonance Ionization towards Heavier Elements and More Exotic Nuclides
Language: English

RAdiation-Detected Resonance Ionization Spectroscopy (RADRIS) is a versatile method for highly sensitive laser spectroscopy studies of the heaviest actinides. Most of these nuclides need to be produced at accelerator facilities in fusion-evaporation reactions and are studied immediately after their production and separation from the primary beam due to their short half-lives and low production rates of only a few atoms per second or less. Only recently, the first laser spectroscopic investigation of nobelium (Z=102) was performed by applying the RADRIS technique in a buffer-gas-filled stopping cell at the GSI in Darmstadt, Germany. To expand this technique to other nobelium isotopes and for the search for atomic levels in the heaviest actinide element, lawrencium (Z=103), the sensitivity of the RADRIS setup needed to be further improved. Therefore, a new movable double-detector setup was developed, which enhances the overall efficiency by approximately 65% compared to the previously used single-detector setup. Further development work was performed to enable the study of longer-lived (t₁/₂>1 h) and shorter-lived nuclides (t₁/₂<1 s) with the RADRIS method. With a new rotatable multi-detector design, the long-lived isotope 254Fm (t₁/₂=3.2 h) becomes within reach for laser spectroscopy. Upcoming experiments will also tackle the short-lived isotope 251No (t₁/₂=0.8 s) by applying a newly implemented short RADRIS measurement cycle.

Journal or Publication Title: Atoms
Volume of the journal: 10
Issue Number: 2
Publisher: MDPI
Collation: 12 Seiten
Uncontrolled Keywords: laser spectroscopy, resonance ionization, atomic level scheme, gas cell, radiation detection, heavy actinides
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Applied Physics
05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 06 May 2022 11:19
Last Modified: 06 May 2022 11:19
DOI: 10.26083/tuprints-00021280
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-212806
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21280
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