Method and apparatus for irradiating a target

摘要

An apparatus ( 10 ) for irradiating a target includes a radiation source ( 12 ) for generating a radiation beam and a multiple leaf beam adjuster ( 16 ) for collimating and adjusting the shape of the radiation beam from the radiation source ( 12 ) that would be projected on the target. An image detector ( 17 ) detects generates an image signal of the target. In response to the image signal, a control module ( 18 ) generate a beam adjustment signal for controlling the beam adjuster ( 16 ), thereby enabling the radiation beam from the radiation source ( 12 ) to track the movement of the target.