Penumbra TAR/TMF PDD BSF

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The flashcards below were created by user RadiationTherapy on FreezingBlue Flashcards.

BSF is equal to ______ at Dmax.

TAR
PDD is directly proportional to:
- Field Size
- Energy
- Distance (SSD)
(PDD needs the FED)
PDD is inversely proportional to:

Depth

(both PDD & TMR are inversely proportional to depth)
TAR & TMR are directly proportional to:

Field Size & Energy (aka beam quality)

(TMR = FE)
TAR & TMR are inversely proprtional to:

Depth

(both PDD & TMR are inversely proportional to depth)
TAR & TMR are independent of:

SSD

(that's why it's perfect for SAD tx's)
BSF or PSF is dependent on:

Field Size & Energy
Penumbra is directly proportional to:
- SSD
- Source Size
Penumbra is indirectly proportional to:

SCD
TAR = TMR X _____

BSF

TAR = TMR X BSF