The KALIF-HELIA accelerator: description, program and status

The 6 MV, 400 kA accelerator KALIF-HELIA is presently under construction at the Forschungszentrum Karlsruhe. It is based on a design that couples a self-magnetically insulated transmission line with the linac induction principle. The accelerator can be used in either polarity for the generation of an ion- or an electron beam respectively. In positive polarity improvement of the quality of intense light ion beams will be the most important research area. Beam divergence scaling laws with voltage and mass will be investigated experimentally. In negative polarity the extracted electron beam will be used for potential future applications where a high dose, high dose rate and a large exposure area might be advantageous.