IEC 60976

Photon Profile Parameters

The defined photon parameters are:

• Field Centre

• Field Size

• Penumbra 80%-20% Left

• Penumbra 80%-20% Right

• Maximum Dose Ratio

• Mean Value

• Maximum Variation

Electron Profile Parameters

The defined electron parameters are:

• Field Centre

• Field Size

• Penumbra 80%-20% Left

• Penumbra 80%-20% Right

• Maximum Dose Ratio

• Flatness L90/L50

• Maximum Variation

Flattened field

The flattend field is defined by the In Field Area.