Before revision: The term collimated may also be applied to particle beams – a collimated beam – where typically shielding blocks of high density materials (such as lead, bismuth alloys, etc) may be used to absorb or block peripheral particles from a desired forward direction, especially a sequence of such absorbing collimators.
After revision: particleThe term collimated may also be applied to particle beams – a collimated beam – where typically shielding blocks of high density materials (such as lead, bismuth alloys, etc) may be used to absorb or block peripheral particles from a desired forward direction, especially a sequence of such absorbing collimators.