Description
Prompt Gamma Activation Analysis (PGAA) is a nondestructive bulk analytical method/tool for determination of elemental composition, based on the detection of prompt-gamma radiation induced by neutron capture into the atomic nucleus. The method is suitable to quantify most major components and a few trace elements (e.g. B, Cl, Co, Cd, Hg, Sm and Gd) in rocks, minerals, ceramics, glass, metals and many inorganic materials. Compared to other analytical techniques, PGAA has lower sensitivity for many geochemically important trace elements, thus application of complementary techniques are recommended.
Impact on object or sample
Nondestructive (no permanent damage or alteration)
Noninvasive (no physical alteration)