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High-sensitive elemental analysis using multi-parameter coincidence spectrometer: GEMINI-II
Authors:Y. Hatsukawa  Y. Miyamoto  Y. Toh  M. Oshima  M. Hosein Mahmudy Gharaie  K. Goto  K. Toyoda
Affiliation:(1) Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan;(2) Tohoku University, Sendai, Miyagi 980-8579, Japan;(3) Hokkaido University, Sapporo, Hokaido 060-0810, Japan
Abstract:In this study, using neutron activation analysis with multi-parameter coincidence method which was developed at Japan Atomic Energy Agency (JAEA), a non-destructive, ultra-high sensitive multi-elemental determination has been realized. The multi-parameter coincidence method is carried out with an array of 19 germanium detectors, GEMINI-II. Using this system, very weak γ-rays emitted from trace amounts of elements can be detected. The iridium concentration has been determined by means of neutron activation analysis with multi-parameter coincidence method for Cuban sediment samples across the K/T boundary strata.
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