Reliability investigation on SiC based diode and MOSFET modules developed for high power conversion in medical X-ray applications

For the sake of compactness and mass reduction, the high power converter modules for x-ray generators in medical applications have been developed utilizing novel SiC diodes and SiC MOSFETs for the first time. The paper discusses the results of comprehensive investigations on the thermal per-formance as well as on the reliability of these modules - as found by power cycling tests supplemented by electro-thermo-mechanical simulations

Picture, Archiving and Communication System in the Italian NHS: A Primer on Diffusion and Evaluation Analysis

This contribution focuses on picture archiving and communication systems (PACS) in the Italian National Healthcare System (NHS). It finally aims to test the Chiefs Radiology Department’s perceptions about PACS along the main evaluation dimensions emerging from the literature. First, a brief review of the main literature concerning PACS evaluation leads the authors to classify the different approaches undertaken and highlight the main variables of investigation. Second, the evidence emerging from a survey is presented and discussed in the light of the literature review. The survey aims to: (a) map out the degree of PACSs diffusion and their main features in the Italian NHS; (b) verify whether and how PACS impact the dimensions analyzed in many evaluation studies carried out to date; (c) test the relationship between some measured impacts and specific PACS features