Electronic test system for the eROSITA x-ray PNCCDs

Details Electronic test system for the eROSITA x-ray PNCCDs Electronic test system for the eROSITA x-ray PNCCDs

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7742e..27e&link_type=abstract

High Energy, Optical, and Infrared Detectors for Astronomy IV. Edited by Holland, Andrew D.; Dorn, David A. Proceedings of th

Astronomy and Astrophysics

Astronomy

Scientific paper

The new X-ray telescope eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the main instrument on the Russian new Spectrum-RG satellite, scheduled for launch in 2012. The primary scientific goal of eROSITA is the detection of about 100,000 clusters of galaxies in an all sky survey. This allows a systematic study on the large scale structures in the universe and will give new information about the nature of dark energy. The focal plane detector is a 5 cm × 3 cm framestore PNCCD, an advanced successor of the XMM-Newton PNCCD, designed and fabricated at the MPI Halbleiterlabor. It has 384 × 384 pixels of 75 μm × 75 μm in the image area and will provide high position, time and spectral resolution as well as a high quantum efficiency for X-ray photons in the energy range from 0.2 keV up to 10 keV. The first flight-like CCDs have been finished in 2008. In order to extensively test these new PNCCDs we developed an electronic test-setup. It is very versatile, allowing us to test the CCDs under many different conditions and is appropriate to show at the same time excellent performance of the detector. In this contribution we present in detail the electronic test-setup, some test results and the conclusions which can be drawn for the eROSITA flight modules.

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