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W x f
dist
x f
occup
x T
patient
x T
trans
< limit
•
f
dist
= inverse square law (distance factor)
•
f
occup
= occupancy factor
•
T
patient
= transmission through the patient
•
T
trans
= transmission factor through the wall or shielding material
•
limit = requirement for the specific point per time period
(w, m, y; e.g. 1 mSv/year
)
Shielding Calculations:
does your facility fulfil the radiation
protection requirements (limits)?
Shielding Calculations, Principles