Resolution studies with the DATURA beam telescope

Abstract: Detailed studies of the resolution of a EUDET-type beam telescope are carried outusing the DATURA beam telescope as an example. The EUDET-type beam telescopes make useof CMOS MIMOSA26 pixel detectors for particle tracking allowing for precise characterisation ofparticle-sensing devices. A profound understanding of the performance of the beam telescope as awhole is obtained by a detailed characterisation of the sensors themselves. The differential intrinsicresolution as measured in a MIMOSA26 sensor is extracted using an iterative pull method, andvarious quantities that depend on the size of the cluster produced by a traversing charged particle arediscussed: the residual distribution, the intra-pixel residual-width distribution and the intra-pixeldensity distribution of track incident positions