Quantum-State Selective Decay Spectroscopy of 213Ra and 53Com

Activity: Talk or presentationPresentation

Details

Title Quantum-State Selective Decay Spectroscopy of 213Ra and 53Com
Person and role
  • Christian Lorenz - Speaker
Description By combining the mass resolving power of a Penning trap with the charged-particle-γ multicoincidence setup TASISpec it was possible to investigate and revise the decay path of the 213Ra ground state and the proton-decay branch of the 3174-keV, 19/2- isomer in 53Co. Together with comprehensive Geant4 simulations, high-resolution quantum-state selective decay spectroscopy enables insight in regions far from the line of β stability where the preparation of isotopically clean sources and thus unambiguous decay information becomes most essential and challenging.
The experimental scheme has been realized at GSI Darmstadt where a 48Ca beam, provided by the UNIversal Linear ACcelerator (UNILAC), was impinging on a thin 170Er target foil. The reaction products went through standard velocity filtering in the Separator for Heavy Ion reaction Products (SHIP), then the nuclear ground state of 213Ra was mass-selected in SHIPTRAP and transferred to the TASISpec decay-station. Although 213Ra has been subject to many studies, the α/EC-branching of the 213Ra ground state has been unchanged since the first studies nearly 50 years ago. In a similar manner the Penning trap JYFLTRAP at the end of the IGISOL-4 facility at the University of Jyväskylä, Finland was utilized to provide a clean beam of 53Com. It is the first direct measurement of its proton decay branching ratio after more then 40 years after its discovery.
These two experiments exemplify the immense potential of high-resolution quantumstate selective decay spectroscopy.
Date/period

2016 Sep 15

Research areas and keywords

UKÄ subject classification

  • Subatomic Physics
Related organisations
By combining the mass resolving power of a Penning trap with the charged-particle-γ multicoincidence setup TASISpec it was possible to investigate and revise the decay path of the 213Ra ground state and the proton-decay branch of the 3174-keV, 19/2- isomer in 53Co. Together with comprehensive Geant4 simulations, high-resolution quantum-state selective decay spectroscopy enables insight in regions far from the line of β stability where the preparation of isotopically clean sources and thus unambiguous decay information becomes most essential and challenging.
The experimental scheme has been realized at GSI Darmstadt where a 48Ca beam, provided by the UNIversal Linear ACcelerator (UNILAC), was impinging on a thin 170Er target foil. The reaction products went through standard velocity filtering in the Separator for Heavy Ion reaction Products (SHIP), then the nuclear ground state of 213Ra was mass-selected in SHIPTRAP and transferred to the TASISpec decay-station. Although 213Ra has been subject to many studies, the α/EC-branching of the 213Ra ground state has been unchanged since the first studies nearly 50 years ago. In a similar manner the Penning trap JYFLTRAP at the end of the IGISOL-4 facility at the University of Jyväskylä, Finland was utilized to provide a clean beam of 53Com. It is the first direct measurement of its proton decay branching ratio after more then 40 years after its discovery.
These two experiments exemplify the immense potential of high-resolution quantumstate selective decay spectroscopy.
2016 Sep 15

Event (Conference)

TitleInternational Nuclear Physics Conference 2016
Abbrev. TitleINPC 2016
Period2016/09/112016/09/16
Web address (URL)
Location
CityAdelaide
CountryAustralia
Degree of recognitionInternational event

Related projects

Dirk Rudolph, Sven Åberg, Gillis Carlsson, Christoph Emanuel Düllmann, Pavel Golubev, Luis Sarmiento Pico, Ulrika Forsberg, Jussi Toivanen, Daniel Ward, Christian Lorenz, Anton Såmark-Roth, Martin Albertsson, Jimmy Ljungberg, Daniel Cox, Yulia Lindholm, Katarina Lindqvist & Mari Lundberg

Kungliga Fysiografiska Sällskapet i Lund, Knut and Alice Wallenberg Foundation, Nobelstiftelsen

2016/01/012020/12/31

Project: Research

Christian Lorenz, Dirk Rudolph, Luis Sarmiento Pico & Pavel Golubev

2015/04/012019/01/31

Project: Dissertation

View all (2)

Related research output

Lorenz, C., Sarmiento, L. G., Rudolph, D., Ward, D. E., Block, M., Heßberger, F. P., Ackermann, D., Andersson, L. L., Cortés, M. L., Droese, C., Dworschak, M., Eibach, M., Forsberg, U., Golubev, P., Hoischen, R., Kojouharov, I., Khuyagbaatar, J., Nesterenko, D., Ragnarsson, I., Schaffner, H. & 3 othersSchweikhard, L., Stolze, S. & Wenzl, J., 2017 Sep 18, In : Physical Review C. 96, 3, 12 p., 034315.

Research output: Contribution to journalArticle

Lorenz, C., Luis Sarmiento, Dirk Rudolph & Block, M., 2017, The 26th International Nuclear Physics Conference. Trieste: Proceedings of Science, Vol. (INPC2016). 9 p. 073

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

View all (2)