FFF-LoRes

This protocol is recommended for low resolution devices such as 2D arrays.

Photon Profile Parameters

FFF parameters only apply to photon beams:

• Field Edge Left

• Field Edge Right

• Field Centre

• Field Size

• Penumbra 80%-20% Left

• Penumbra 80%-20% Left

• Top position

• Area Symmetry

• Peak Slope Left

• Peak Slope Right

• Peak Slope Ratio

Flattened field

FFF beams use the concept of In Field Area which is primarily used for the Area Symmetry and Peak Slope calculations.