Phantom Moving

Beam Gating

Relative Dose

Sinusoidal pattern

A = 20 mm, T = 2 s

No

0.93

On

0.99

Sinusoidal pattern

A = 20 mm, T = 4 s

No

0.94

On

1.00

Sinusoidal pattern

A = 40 mm, T = 4 s

No

0.55

On

1.00

Basic respiratory pattern

(mean A = 15.2 mm, mean T = 4.8 s)

No

1.00

On

1.00