First Offline Results from the S3 Low-Energy Branch

Jekabs Romans (1) , Anjali Ajayakumar (2) , Martial Authier (3) , Frederic Boumard (4) , Lucia Caceres (2) , Jean-François Cam (4) , Arno Claessens (1) , Samuel Damoy (2) , Pierre Delahaye (2) , Philippe Desrues (4) , Antoine Drouart (3) , Patricia Duchesne (5) , Rafael Ferrer (1) , Xavier Fléchard (4) , Serge Franchoo (5) , Patrice Gangnant (2) , Ruben de Groote (1) , Sandro Kraemer (1) , Nathalie Lecesne (2) , Renan Leroy (2) , Julien Lory (4) , Franck Lutton (2) , Vladimir Manea (5) , Yvan Merrer (4) , Iain Moore (6) , Alejandro Ortiz-Cortes (2) , Benoit Osmond (2) , Julien Piot (2) , Olivier Pochon (5) , Blaise-Maël Retailleau (2) , Hervé Savajols (2) , Simon Sels (1) , Emil Traykov (7) , Juha Uusitalo (6) , Christophe Vandamme (4) , Marine Vandebrouck (3) , Paul van den Bergh (1) , Piet van Duppen (1) , Matthias Verlinde (1) , Elise Verstraelen (1) , Klaus Wendt (8)

1 Instituut voor Kern- en Stralingsfysica
2 GANIL - Grand Accélérateur National d'Ions Lourds
3 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
4 LPCC - Laboratoire de physique corpusculaire de Caen
5 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
6 JYU - Department of Physics [Jyväskylä Univ]
7 IPHC - Institut Pluridisciplinaire Hubert Curien
8 Institut für Physik [Mainz]

We present the first results obtained from the S3 Low-Energy Branch , the gas cell setup at SPIRAL2-GANIL, which will be installed behind the S3 spectrometer for atomic and nuclear spectroscopy studies of exotic nuclei. The installation is currently being commissioned offline, with the aim to establish optimum conditions for the operation of the radio frequency quadrupole ion guides, mass separation and ion bunching, providing high-efficiency and low-energy spatial spread for the isotopes of interest. Transmission and mass-resolving power measurements are presented for the different components of the S3-LEB setup. In addition, a single-longitudinal-mode, injection-locked, pumped pulsed-titanium–sapphire laser system has been recently implemented and is used for the first proof-of-principle measurements in an offline laser laboratory. Laser spectroscopy measurements of erbium, which is the commissioning case of the S3 spectrometer, are presented using the 4f126s23H6→4f12(3H)6s6p optical transition.

Keywords: resonance ionization laser spectroscopy; gas cell; hypersonic gas jets; radio frequency quadrupoles; nuclear ground state properties; isotope shift; hyperfine structure

Domains: Nuclear Experiment [nucl-ex]; Instrumentation and Detectors [physics.ins-det]; Atomic Physics [physics.atom-ph]

Jekabs Romans, Anjali Ajayakumar, Martial Authier, Frederic Boumard, Lucia Caceres, et al.. First Offline Results from the S3 Low-Energy Branch. Atoms, 2022, 10 (1), pp.21. ⟨10.3390/atoms10010021⟩. ⟨hal-03571889⟩