²⁶Al terrestrial age of meteorites determined by both ultra low background gamma-ray counting system and AMS.

Abstract

²⁶Al in a meteorite is measured in order to clarify terrestrial age of an antarctic meteorite, secular change of fall frequency, the problem of pairing, etc. As a measuring method, it is carrying out by two methods, ultra low background gamma-ray counting system and AMS. Here, while explaining both measuring methods, the adjustment of the measured value between both methods is also reported.