*INTÉZETI SZEMINÁRIUM*

Előadó: *A. J. Timothy Jull* (NSF Arizona AMS Laboratory)

Előadás címe: *Radiocarbon and other radionuclides in meteorites and
lunar samples *

Kivonat:
Material in space, whether in a meteoroid, asteroid or planetary object,
is irradiated by solar and galactic cosmic radiation. Meteorites and
lunar samples preserve a history of this irradiation. Depending on the
half-life of the nuclide, the activity can be used to estimate the
exposure age of meteorites in space or also their terrestrial residence
age from the decay of radionuclides from the original activity. The
terrestrial age can potentially give us information about infall rates
of material in the past. On the surface of the Moon, solar cosmic rays
produce radionuclides in the top few centimeters of rocks and this
signal can be used to infer past solar activity, from the production
rates of different nuclides.

Előadás időpontja: *2013. március 14. (csütörtök), 14:00**
*
Előadás helyszíne: MTA CSFK CSI Előadóterme
1121 Budapest, Konkoly T. M. út 15-17.