Acknowledgments
The author would like to thank A. Dierlamm (KIT), I. Mandic (JSI) and M. Glaser (CERN) for carrying out the device irradiation in Karlsruhe, Ljubljana and CERN, respectively. The irradiation in Karlsruhe was supported by the Initiative and Networking Fund of the Helmholtz Association, Contract HA-101. We would like to thank all the members of the PPS testbeam crew for their support during the testbeam campaigns of the last years. The research leading to these results has received funding from the European Commission under the FP7 Research Infrastructures Project AIDA, Grant agreement no. 262025.