Novel topologies of Multi-Linear Silicon Drift Detectors for position sensing with energy discrimination

We present the design and the experimental characterization of novel topologies of Multi-Linear Silicon Drift Detectors suitable for ID and 2D position sensing with the aim to extend the potential of silicon drift detector technology to X-ray imaging at high charge injection levels and with faster readout speed. Three detector prototypes has been designed with novel design solutions. The first two prototype are optimized for high charge confinement and for high field operation. The third prototype is designed profiting of a novel technological development for detector production that makes possible selfaligned layout and therefore a finer line-width. The paper will discuss the design features of the Multi-Linear Silicon Drift Detectors prototypes and the results of the experimental campaign with IR laser and with mono-energetic protons.