X-ray collimator for imaging system

A collimator comprising:

• a panel defining an exit port configured to allow an X-ray beam from an X-ray source to emanate therethrough towards a detector;
• and
• one or more blades held between the panel and the X-ray source and covering at least a portion of the exit port, each of the one or more blades comprising:
• a base having a first side facing the X-ray source;
• a primary blocking member mounted to the first side of the base, the primary blocking member having a material density sufficient to block X-ray radiation, the primary blocking member having a substantially non-planar surface facing toward the X-ray source that is configured to shape the X-ray beam that is emanated through the exit port;
• and
• a secondary blocking member mounted to the base in a fixed position relative to the primary blocking member and disposed between the primary blocking member and the panel, the secondary blocking member having a material density sufficient to block X-ray radiation, the secondary blocking member including a substantially planar surface facing toward the X-ray source that is configured to block scatter X-ray radiation from emanating through the exit port,
• wherein the substantially non-planar surface of the primary blocking member has a concave profile relative to the secondary blocking member such that a middle of the concave profile is closer to the secondary blocking member than each of a first end and a second end of the concave profile.

A collimator comprising:

• a first blade and a second blade spaced apart from each other to define an aperture therebetween, the first and second blades configured to receive an X-ray beam from an X-ray source and to shape the X-ray beam via the aperture, at least one of the first and second blades being moveable relative to other blade to adjust a size of the aperture, each of the first and second blades comprising:
• a base having a first side facing the X-ray source and a second side opposite the first side;
• a primary blocking member mounted to the first side of the base;
• and
• a secondary blocking member mounted to the second side of the base and secured in a fixed position relative to the primary blocking member,
• wherein the primary blocking member and the secondary blocking member have material densities sufficient to block X-ray radiation, the primary blocking member having a substantially non-planar surface facing toward the X-ray source that shapes the X-ray beam, the secondary blocking member having a substantially planar surface facing toward the X-ray source that blocks scatter X-ray radiation,
• wherein the aperture has a depth that includes a first passage and a second passage, the first passage defined between respective inner edges of the primary blocking members of the first and second blades, the second passage defined between respective inner edges of the secondary blocking members of the first and second blades.