Warning: We observe an increase of emails from fake travel portals like . "travelhosting.co.uk". We never send links to such portals so be vigilant!

24–27 Jun 2019
Seminarhaus Grainau
Europe/Berlin timezone

Neutron Activation Analysis (NAA) at FRM II - trace element analysis in samples from high purity silicon to meteorites

26 Jun 2019, 10:00
20m
Large Seminar room

Large Seminar room

Speakers

Dr Xiaosong Li (RCM / TU München) Christian Stieghorst (TUM / FRM II) Zsolt Revay (PGAA)

Description

Neutron activation analysis is a nuclear analytical technique mainly used for the determination of trace elements. NAA is typically applicable to the chemical elements from the 4th period of the Periodic Table, and is highly sensitive for Na, Mn, Sc, Ta, Ir, In as well as the rare-earth elements. Its advantage is simple sample preparation, high sensitivity, non-destructiveness and multi-element analysis in a wide range of concentrations. Detection limits down to fg (femtogram) level can be reached. With its highly thermalized neutron flux, the reactor FRM II offers exceptional opportunities for the instrumental neutron activation analysis (INAA).

In my presentation, I will talk about some recent analytical studies, such as impurities in high-purity silicon, “finger-print” elements in archeological objects (bronze, ceramics) and meteorites incl. the meteorite “Cloppenburg” found in Germany in 2017.

Primary author

Dr Xiaosong Li (RCM / TU München)

Co-authors

Presentation materials

There are no materials yet.