| 摘要 |
An apparatus for obtaining tomosynthesis data of an object ( 5 ) comprises a radiation source ( 1 ) emitting radiation ( 2 ) centered around an axis of symmetry ( 3 ); a radiation detector ( 6 ) comprising a stack of line detectors ( 6 a), each being directed towards the divergent radiation source to allow a ray bundle (b 1 , . . . , b<SUB>n</SUB>, . . . , b<SUB>N</SUB>) of the radiation that propagates in a respective one of a plurality of different angles (alpha<SUB>1</SUB>, . . . , alpha<SUB>n</SUB>, . . . , alpha<SUB>N</SUB>) to enter the line detector; an object area arranged in the radiation path between the divergent radiation source and the radiation detector for housing the object; and a device ( 7 ) for moving the radiation source and the radiation detector relative the object essentially linearly in a direction ( 8 ) essentially orthogonal to the axis of symmetry, while each of the stack of line detectors is adapted to record a plurality of line images of radiation as transmitted through the object in a respective one of the plurality of different angles. |
