Prompt gamma activation analysis of samples in thick containers

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Two methods are presented for the prompt gamma activation analysis (PGAA) of samples in relatively thick containers. In the “Invisible container” method, the prompt gamma-radiation from the activated parts of the container can be suppressed in the spectrum. The target can be analyzed simultaneously with the shielding material, when the target signal in the spectrum is stronger. Uranium containing compounds were analyzed in lead capsules.

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