814.501RPOFederal Council OrdinanceJan 1, 2018Original source
With regard to design, sealed radioactive sources must reflect the state of the art when they are placed on the market.
For sealed radioactive sources, the radionuclides selected must be chemically as stable as possible.
If sealed radioactive sources are used exclusively as gamma or neutron emitters, shielding must be provided which prevents the escape of alpha or beta radiation.
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