PERFORMANCE AND POLARIMETRIC CAPABILITY OF CZT SPECTROMETERS WITH 3D SPATIAL RESOLUTION (PAP-3DCZT)

The main purpose of this proposal, by means of the ID-15 beam line features, is to evaluate the performance in spectroscopy, 3D spatial resolution and polarimetry of new CZT spectrometer sensors developed in the framework of the project: 3DCaTM fo funded by the Italian Space Agency. This 3D CZT sensor technology is based on the so-called CZT Drift Strip detector [1] with a digital signal readout and processing. These 3D CZT sensors can acts as building element for instrumentation in next generation of high-energy telescopes, such as focal planes of new high energy focussing optics (e.g. broadband Laue lenses). A fine spectroscopy combined with sub-mm position resolution in 3D and a powerful digital readout will allow the precise reconstruction of the photon interaction, a feature that is essential to achieve, at the time, high efficiency and response uniformity, good background rejection capabilities, and high sensitivity in scattering polarimetry.