Preliminary AMS measurements of ¹⁰Be at the CENTA facility

Autor(en)

Miroslav Jeskovsky, Peter Steier, Alfred Priller, Robert Breier, Pavel P. Povinec, Robin Golser

Abstrakt

Very sensitive methods, presently mainly accelerator mass spectrometry (AMS) are necessary for analysis of cosmogenic

¹⁰Be in the environment. AMS is mainly limited by the stable isobar

¹⁰B, while the requirements for mass separation are the least stringent of all standard isotopes analyzed by AMS. We tested a possibility to measure

¹⁰Be using a small switching magnet as an analyzer of accelerated ions, and an ionization chamber with a silicon nitride foil stack used as a passive absorber. A detection limit of 10

^-12 for the

¹⁰Be/

⁹Be isotopic ratio was obtained using this technique, which was mainly determined by scattering of

⁹Be

⁺² ions on residual gas inside the switching magnet.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Univerzita Komenského v Bratislave

Journal

Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms

Band

361

Seiten

139-142

Anzahl der Seiten

4

ISSN

0168-583X

DOI

https://doi.org/10.1016/j.nimb.2015.04.072

Publikationsdatum

10-2015

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik

Schlagwörter

ASJC Scopus Sachgebiete

Nuclear and High Energy Physics, Instrumentation

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/d7d63490-ab8e-4fc3-84e5-08d60f54f0e8