New versatile monolithic multipixel detector systems based on Silicon Drift Detectors

The aim of this thesis is to present new versatile devices based on Silicon Drift Detectors (SDDs). They have excellent spatial and energy resolutions and can be used for high precision X spectroscopy for synchrotron light applications. A large number of projects was developed within the INFN ReDSoX Collaboration. The research activity carried out, and presented in this thesis, has as its main objective the study of SDDs monolithic arrays and in particular, the development, tests, the quality and reliability evaluation of the monolithic multipixel SDD designs dedicated to the numerous specific applications in synchrotron radiation and astrophysics. In detail for synchrotron radiation applications, the various phases of the developments are described: - Customized sensor design based on the destination use of the detector - Various progressive phases of testing and optimization of the SDD element - Progression to improve the reliability and stability of the integrated system performance - Optimisation and final characterization on the beamline of the complete system In particular, monolithic arrays of SDDs in dedicated designs will be used for the XAFS beamline of the SESAME synchrotron in Jordan for EXAFS spectroscopy, and for the TwinMic beamline of the Elettra Trieste synchrotron, for spectromicroscopy. This thesis work has led to the development and the substantial improvement of performances of detection systems for both XAFS-SESAME and TwinMic beamlines.