Radioactive substances
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Radioactive substances within the meaning of the Atomic Energy
Act are:
The Radiological Protection Ordinance further distinguishes:
-
enclosed radioactive substances: radioactive substances which areenclosed
by a tight, firm, inactive shell or permanently embedded in solid
inactive substances so that the release of radioactive substances
is prevented in the case of usual normal stress; a dimension must
at least amount to 0.2 cm;
-
open radioactive substances: all radioactive substances except
for enclosed radioactive substances;
-
short-lived radionuclides: radioactive substances with a half-life
of up to 100 days;
-
long-lived radionuclides: radioactive substances with a half-life
of more than 100 days.
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