Abstract: Process and device for electron beam treatment of bulk material where the bulk material is fed into a continuous stream by means of compression stages (3) which can be evacuated. It is dispersed and directed into a dosed irradiation chamber (1), passing in this chamber through an irradiation field in a free-fall process, and discharged from the irradiation chamber through a compression stage system (4). The invention enables electron beam treatment of biological materials to be carried out to particularly good advantage, e.g. in combatting harmful organisms in seeds.

Abstract: An apparatus for analyzing two-dimensional input objects comprising an illumination system including a lighting unit, a Fourier transform module and a receiver unit. The lighting unit generates an incoherent illuminating beam of predetermined form and area, for what purpose the lighting unit may include a self-luminous mask or an incoherently illuminated mask. A receiver unit comprises a single detector which is arranged in the optical axis of the Fourier transform plane of the Fourier transform module. The exit of the lighting unit is located on the optical axis and is imaged by the subsequent imaging optical elements (inclusive of the Fourier transform module) at the Fourier transform plane of the Fourier transform module.

Abstract: In an exemplary embodiment, a flat radiation beam is detected having a common electrode disposed parallel to the beam plane at one side and a common support with a series of individual conductors providing electrodes opposite successive portions of the common electrode and lying in a plane also parallel to the beam plane. The beam may be fan-shaped and the individual electrodes may be aligned with respective ray paths separated by uniform angular increments in the beam plane. The individual conductors and the connection thereof to the exterior of the detector housing may be formed on an insulator which can be folded into a T-shape for leading the supply conductors for alternate individual conductors toward terminals at opposite sides of the chamber.