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Unlike other samples, this one, does not belong to my collection! Photos are taken on the chemical faculty of the Moscow State University!.

  Technetium foil in ampoule Technetium foil
Technetium foil in ampoule. Notice, that glass is dark due to the high absorbed dose of radiation!

  Technetium sample on th radiation detector
Beta rays, emmitted by Technetium are mostly absorbed by glass, but nevertheless, sample showing quite high level of radioactivity (also by induced X-Ray activity)..