North - Holland The injector microtron for the TEUFEL infrared laser

نویسنده

  • H. L. Hagedoorn
چکیده

Progress is reported on a 25 MeV injector racetrack microtron for a 10 wm radiation free electron laser (TEUFEL project). The accelerator exhibits transverse focusing in 180° inhomogeneous two-sector dipole magnets which are slightly rotated with respect to each other in the bending plane . This provides closed orbits, isochronism and a large transverse acceptance. Details on this unconventional microtron focusing system will be given . An analytical treatment, based on conformal mapping, of the field near pole boundaries and at the hill-valley boundaries in the microtron dipole is compared with Poisson calculated results and with field measurements . The design of a model accelerating cavity is presented together with field measurements based on the perturbation ball method.

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تاریخ انتشار 2002