Hand Calculation Methods Flashcards
1
Q
Define PDD Formula
A
DD = Dose@depthd/Dose@depthdmax
2
Q
TAR Formula?
A
Dose at depth d/dose in air of buildupcap
3
Q
Are %DD curves are SSD dependant whereas TAR/TMR/TPR curves are independent of SSD?
A
YES IMPORTANT
4
Q
Collimator scatter factor depends on what?
A
Field size
5
Q
Please select all of the following that may be considered independent of SSD.
TAR
PDD
TMR
TPR
A
All But PDD