Systems and methods for adjusting beam-limiting devices

A method for adjusting a beam-limiting device, the beam-limiting device including a plurality of movable components for shaping a radiation beam, implemented on a computing device including at least one processor and at least one storage device, the method comprising:

• for each of the plurality movable components,
• determining an initial location of the movable component;
• determining a target location of the movable component;
• and
• determining, based on the initial location and the target location, a moving route of the movable component, wherein the movable component moves along a compound direction of a first direction and a second direction, the first direction being parallel to a center axis of the radiation beam emitted from the radiation source, and the second direction being in a plane perpendicular to the first direction;
• and
• causing the plurality of movable components to move along their respective moving routes, wherein
• during the movement of the plurality of movable components along their respective moving routes, the shape of an irradiation region of the radiation beam passing through the beam-limiting device remains unchanged.

A non-transitory computer readable medium, comprising executable instructions that, when executed by at least one processor, direct the at least one processor to perform a method for adjusting a beam-limiting device, the beam-limiting device including a plurality of movable components for shaping a radiation beam, the method comprising:

• for each of the plurality movable components,
• determining an initial location of the movable component;
• determining a target location of the movable component;
• and
• determining, based on the initial location and the target location, a moving route of the movable component, wherein the movable component moves along a compound direction of a first direction and a second direction, the first direction being parallel to a center axis of the radiation beam emitted from the radiation source, and the second direction being in a plane perpendicular to the first direction;
• and
• causing the plurality of movable components to move along their respective moving routes, wherein
• during the movement of the plurality of movable components along their respective moving routes, the shape of an irradiation region of the radiation beam passing through the beam-limiting device remains unchanged.