"1efdd374-40a1-4118-a1da-61c647017ec9" . "ALUMINUM-26 ANALYSIS"^^ . "ALUMINUM-26, is a radioactive isotope of the chemical element aluminium, decaying by either of the modes beta-plus or electron capture, both resulting in the stable nuclide magnesium-26. The half-life of 26Al is 7.17×105years. This is far too short for the isotope to survive to the present, but a small amount of the nuclide is produced by collisions of argon atoms with cosmic ray protons.\n The analysis of AL26 is part of the process to determine exposure ages."^^ . .