146 citations · 373 across the 17 of their papers we have counts for
18 papers
Exploring - and -decay-induced quenching of the Th nuclear-clock isomer in solid-state hosts
Y. Elskens, M. Athanasakis-Kaklamanakis, S. Arasada Pradeep +52
The radiative decay dynamics of an ensemble of Th nuclei embedded in CaF and MgF is investigated. The isomer is populated through decay of Ac…
A prototype gas cell for the stopping, extraction and neutralization of radioactive nuclei from the SPIRAL2 Super Separator Spectrometer (S)
W. Dong, V. Manea, R. Ferrer +9
We present the design and simulation of a prototype gas cell for in-gas-jet laser-ionization and spectroscopy studies using the low energy branch of the SPIRAL2-S radioactive-i…
An experimental setup for the study of gas-cell processes for the S-Low Energy Branch
E. Morin, W. Dong, V. Manea +17
We present an experimental setup dedicated to the study of in-gas ion processes and characterization of gas stopping cells for the Low Energy Branch of the Super Separator Spectrom…
Study of thorium in hypersonic gas jets: Ionization potentials of Th and Th
A. Claessens, F. Ivandikov, M. Brasseur +10
Laser ionization spectroscopy was performed on both neutral and singly ionized Th with the aim of identifying the nuclear-clock isomer in the singly charged ionic state of…
multiconfigurational calculations of experimentally significant energy levels and transition rates in Lr I
Joseph S. Andrews, Andrey I. Bondarev, Per Jönsson +4
Large-scale multiconfigurational calculations are conducted on experimentally significant transitions in Lr I and its lanthanide homologue Lu I, exhibiting good agreement with rece…
Radiative Decay of the Th Nuclear Clock Isomer in Different Host Materials
S. V. Pineda, P. Chhetri, S. Bara +42
A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN of the radiative decay of the Th nuclear clock isomer embedded in different host materials is…
Electronic State Chromatography of Lutetium Cations
Biswajit Jana, EunKang Kim, Aayush Arya +6
Relativistic effects strongly influence the electronic structures of the heaviest elements, thereby shaping their chemical and physical properties. Studying ion mobility within a n…
Laser Resonance Chromatography: First Commissioning Results and Future Prospects
EunKang Kim, Biswajit Jana, Aayush Arya +6
We report first results obtained during the commissioning of the Laser Resonance Chromatography (LRC) apparatus, which is conceived to enable atomic structure investigations in the…
High-resolution laser system for the S3-Low Energy Branch
Jekabs Romans, Anjali Ajayakumar, Martial Authier +39
In this paper we present the first high-resolution laser spectroscopy results obtained at the GISELE laser laboratory of the GANIL-SPIRAL2 facility, in preparation for the first ex…
Observation of the radiative decay of the nuclear clock isomer
Sandro Kraemer, Janni Moens, Michail Athanasakis-Kaklamanakis +32
The nucleus of the radioisotope thorium-229 (Th) features an isomer with an exceptionally low excitation energy that enables direct laser manipulation of nuclear states.…
Recent progress in laser spectroscopy of the actinides
Michael Block, Mustapha Laatiaoui, Sebastian Raeder
The interest to perform laser spectroscopy in the heaviest elements arises from the strong impact of relativistic effects, electron correlations and quantum electrodynamics on thei…
Detection of missing low-lying atomic states in actinium
Ke Zhang, Dominik Studer, Felix Weber +10
Two lowest-energy odd-parity atomic levels of actinium, 7s^27p 2P^o_1/2, 7s^27p 2P^o_3/2, were observed via two-step resonant laser-ionization spectroscopy and their respective ene…
An alternative approach to populate and study the Th nuclear clock isomer
M. Verlinde, S. Kraemer, J. Moens +24
A new approach to observe the radiative decay of the Th nuclear isomer, and to determine its energy and radiative lifetime, is presented. Situated at a uniquely low excitat…
Precision mass measurements of magnesium isotopes and implications on the validity of the Isobaric Mass Multiplet Equation
M. Brodeur, A. A. Kwiatkowski, O. M. Drozdowski +21
If the mass excess of neutron-deficient nuclei and their neutron-rich mirror partners are both known, it can be shown that deviations of the Isobaric Mass Multiplet Equation (IMME)…
High-Resolution Laser Spectroscopy of Long-Lived Plutonium Isotopes
A. Voss, V. Sonnenschein, P. Campbell +7
Long-lived isotopes of plutonium were studied using two complementary techniques, high-resolution resonance ionisation spectroscopy (HR-RIS) and collinear laser spectroscopy (CLS).…
Offline trapping of Fr in a magneto-optical trap from implantation of an Ac ion beam
M. Tandecki, J. Zhang, S. Aubin +10
We demonstrate a new technique to prepare an offline source of francium for trapping in a magneto-optical trap. Implanting a radioactive beam of Ac, da…
Breakdown of the Isobaric Multiplet Mass Equation for the A = 20 and 21 Multiplets
A. T. Gallant, M. Brodeur, C. Andreoiu +21
Using the Penning trap mass spectrometer TITAN, we performed the first direct mass measurements of 20,21Mg, isotopes that are the most proton-rich members of the A = 20 and A = 21…
Resonance ionization spectroscopy of thorium isotopes - towards a laser spectroscopic identification of the low-lying 7.6 eV isomer of Th-229
Sebastian Raeder, Volker Sonnenschein, Tina Gottwald +5
In-source resonance ionization spectroscopy was used to identify an efficient and selective three step excitation/ionization scheme of thorium, suitable for titanium:sapphire (Ti:s…