Emittance measurements at the 100 keV beam stage of the injector linac of the IFUSP microtron

The injector linac consists of a 100-keV electron gun, a beam conforming stage, and two acceleration structures. The beam focalization is made by solenoids, and correcting coils are provided for steering. In this work we describe the beam emittance measurement on the beam conforming stage. Some results are shown. The injector linac consists of a beam conforming stage, with chopper and buncher systems, and two acceleration structures [2] (the first one with variable beta, and the second one divided into two parts with different beta). There is a 3-mm diameter collimator at the entrance to the first acceleration structure.