Publications
Comparison of detector systems for the separation of Cl-36 and S-36 with a 3-MV tandem
- Author(s)
- Tobias Orlowski, Oliver Forstner, Robin Golser, Walter Kutschera, Silke Merchel, Martin Martschini, Alfred Priller, Peter Steier, Christof Vockenhuber, Anton Wallner
- Abstract
The possibility of detecting Cl-36 for geological exposure dating has been explored for several years at VERA (the Vienna Environmental Research Accelerator). First results on real samples were obtained with an ionization chamber (developed at the ETH/PSI, Zurich, Switzerland) with two anodes. To improve the suppression of S-36, we equipped the ionization chamber with an exit window and added a Time-of-Flight (TOF) system with a double-sided silicon strip detector (50 x 50 mm(2)) as stop detector. We optimized the TOF setup by using silicon nitride foils to reduce scattering tails in the energy spectra. At 3 MV terminal voltage, corresponding to a particle energy of 24 MeV of Cl-36(7+), we achieved a S-36(7+)- suppression of 21,500 (50% Cl-36-detector-efficiency).
- Organisation(s)
- Isotope Physics
- External organisation(s)
- TRIUMF, CEREGE - Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement
- Journal
- Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms
- Volume
- 268
- Pages
- 847-850
- No. of pages
- 4
- ISSN
- 0168-583X
- DOI
- https://doi.org/10.1016/j.nimb.2009.10.046
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/4084ea95-0dbc-415c-83d2-4e4af5d64cad