TARGETS FOR THE GENERATION OF SECONDARY RADIATION FROM A PRIMARY RADIATION, DEVICE FOR THE TRANSMUTATION OF RADIO ACTIVE WASTE, AND OPERATING METHODS.

摘要

The invention relates to targets for the generation of secondary radiation from a primary radiation, a device for the transmutation of radioactive waste, and operating methods. With the targets, the secondary radiation is generated in each case by an active material being bombarded with a primary radiation. A first embodiment of the target is characterized in that a plurality of portions of the active material are arranged one behind another in the beam direction of the primary beam such that a cooling medium can flow around each of them. In a further embodiment, the active material is present in a multiplicity of solid portions that are moveable through the primary beam. In a third embodiment, the active material contains at least one solid that is transparent to the primary radiation. These measures have the effect individually or else in combination that the primary radiation penetrates into the target more deeply, and a more homogeneous field of the secondary radiation is generated, than according to the previous prior art. The targets can be used, in particular, as neutron sources for transmutation of radionuclides.