FIBER OPTIC BEAM-IMAGING APPARATUS AND METHOD

摘要

Apparatus for generating a reduced-scale optical image of an x-ray beam pattern or the like. The apparatus includes an optical fiber assembly (38) which forms a two-dimensional input array and whose output ends form a reduced-scale two-dimensional output array. A beam converter (34, 36) in the apparatus converts the irradiation beam (29) to a corresponding electron beam, and this beam is converted to a two-dimensional light image of the beam which is directed onto the input array. In one embodiment, the optical fibers form a fiber assembly (38) constructed of an array of multifiber reducers which are tapered on progressing between input and output ends.