Mid-term
Shielding
vs Barriers
Exemption quantity
cnsc
For general
purposes an exemption quantity may be defined as: a quantity of a radionuclide
(expressed in in Bq) below which licensing by CNSC is not required. As CNSC has
regulated the University of Ottawa by setting disposal limits for specific
radionuclides less than the associated EQ value, the University of Ottawa
provides the EQ values for reference purpose only.
Maximum allowable
concentration
The maximum
exposure to a biologically active physical or chemical agent that is allowed
during an 8-hour period (a workday) in a population of workers, or during a
24-hour period in the general population, which does not appear to cause
appreciable harm, whether immediate or delayed for any period, in the target
population. (From Lewis Dictionary of Toxicology, 1st ed)
Activity
(emission, concentration, …)
Half-life
Content
Geologic,
engineered, and waste barriers
Storage
Stopping power
Uranium is
stable in a low oxidation
You might
need absolute barrier
How much do
you need to slow the migration?
Waste isolation
and natural barrier, how much time do I need?
What
information do you want to monitor?
You maintain
How does
the waste get out?
How does
the material move
Where does
the material move to
