| 摘要 |
An assembly for electron beam tomography affords continuous and simultaneous recording of two-dimensional slice images of an object in different irradiation planes with a high temporal and spatial resolution. Targets are penetrated by openings of a given width and with a regular arrangement in the circumferential direction. The openings in the targets are respectively situated on a path formed by the cross section of the shell of the electron beam cone with the respective target. The successive targets in the beam direction respectively are arranged with a small angular offset with respect to the optical axis to the respective target situated in front, and so an electron beam circulating along the shell of the electron beam cone successively irradiates the material webs between the openings of all targets with at least part of its cross section and an X-ray detector arc is arranged for each target in coplanar radial fashion in front of or behind the respective target.
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