Year: 2026
Type: article
Abstract: In recent years, significant efforts have been made to investigate the atomic structure of lawrencium (Lr, $$Z=103$$ Z = 103 )—the heaviest actinide element—using laser spectroscopy. This article presents the current status of the experimental search for atomic transitions in lawrencium at GSI, Darmstadt, Germany, along with the necessary developments toward achieving laser spectroscopy of this element. We have advanced the method of radiation-detected resonance ionization spectroscopy (RADRIS), which has previously enabled the first laser spectroscopic studies of nobelium. We have conducted essential preparatory studies, demonstrating that lawrencium can be efficiently evaporated from hafnium filaments. Using two-step laser resonance ionization, we scanned a spectral range of approximately 800 cm $$^{-1}$$ - 1 around each of two different, theoretically predicted strong atomic transitions. Based on the measured background and the determined system efficiency, we demonstrate that our experimental setup is sensitive enough to detect these atomic transitions, albeit no atomic transitions have been observed to date.
Source: The European Physical Journal D
Authors: Elisabeth Rickert, Jessica Warbinek, Premaditya Chhetri, Sebastian Raeder, Brankica Andelić, Julian Auler, Michael Block, Pierre Chauveau, Bradley Cheal, Arno Claessens, Antoine de Roubin, Charlie Devlin, Sven Efinger, Julia Even, Rafael Ferrer, Francesca Giacoppo, Thomas Goigoux, Manuel J. Gutiérrez, Fritz-Peter Heßberger, Fedor Ivandikov, Magdalena Kaja, Oliver Kaleja, Tom Kieck, EunKang Kim, Sandro Kraemer, Mustapha Laatiaou, Jeremy Lantis, Werner Lauth, Nathalie Lecesne, Andrew Mistry, Iain Moore, Tobias Murböck, Danny Münzberg, Steven Nothhelfer, Andrea Raggio, Emmanuel Rey-Herme, Jekabs Romans, Elisa Romero-Romero, Hervé Savjols, Jonas Schneider, Matou Stemmler, Barbara Sulignano, Piet Van Duppen, Marine Vandebrouck, Matthias Verlinde, Elise Verstraelen, Thomas Walther, Klaus Wendt
Institutions: GSI Helmholtz Centre for Heavy Ion Research, Johannes Gutenberg University Mainz, Helmholtz Institute Mainz, Centre National de la Recherche Scientifique, École Nationale Supérieure d'Ingénieurs de Caen, Laboratoire de Physique Corpusculaire de Caen, Institut National de Physique Nucléaire et de Physique des Particules, Université de Caen Normandie, University of Groningen, University of Liverpool, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, CEA Paris-Saclay, Institut de Recherche sur les Lois Fondamentales de l'Univers, Universität Greifswald, Grand Accélérateur National d'Ions Lourds, University of Jyväskylä, Technische Universität Darmstadt
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,790
Funders: European Commission, Academy of Finland, Bundesministerium für Bildung und Forschung, Fonds De La Recherche Scientifique - FNRS, Fonds Wetenschappelijk Onderzoek, Vlaamse regering, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, GSI Helmholtzzentrum für Schwerionenforschung
Awards: G1276317268, Verbundprojekt 05P2018 - ISOLDE: Laserionisation und direkte In-Source Spektroskopie an refraktären sowie negativ geladenen Radioisotopen an ISOLDE und den Laserionenquellen RILIS und LIST, G2001806450, G2188020438, G3345895242, G339959862, G3443849562, G3781410896, G3808234918, G3985760359, G4467158980, G522478768, G530603721, Probing the ActiNides: THeory and Experiment of Radioisotopes, G6018744512, G6281504974, G6715499920, Laser Ionization and Spectroscopy of Actinide elements, G7128194990, G7628805400, G7635330262, G7671084252, G7894955715, G7984235579, G8512683158, Verbundprojekt 05P2021 (ErUM-FSP T07) - Aufbau von NUSTAR bei FAIR: Aufbau und Nutzung der NUSTAR-Anlage außerhalb der NUSTAR-High-Energy-Cave, G948700977
OpenAlex ID: W7165944037