Dose 2016

Action limits - Proposed philosophy

Determine the uncertainty ( σ ) for the dose measurement, yielding the probability distribution for the true dose .

Step 1:

Dm - C /2

Dm + C /2

α

α

Dose (Gy)

C

α

Error probability = (1-CL)/2 (i.e. 2.5% when CL=95%)

Dose measurement = Dm

Set a confidence level CL for the true dose, e.g. CL =95%, and determine the corresponding dose interval C α .

Step 2:

From Jörgen Olofsson (Dose Modeling and dose verification ESTRO COURSE)