US Patent 10892064 Multi-leaf collimator

A multi-leaf collimator is provided. The multi-leaf collimator may include a plurality of leaves configured to shield radiation beams. At least two leaves of the plurality of leaves may be movable in a direction parallel to each another. Each leaf of at least some of the plurality of leaves may be configured to be movable between at least two positions. At least one of the at least two positions may be adjustable.