26 September 2013 Progress of the x-ray CCD camera development for the eROSITA telescope
Author Affiliations +
The eROSITA space telescope is presently developed for the determination of cosmological parameters and the equation of state of dark energy via evolution of galaxy clusters. It will perform in addition a census of the obscured black hole growth in the Universe. The instrument development was also strongly motivated by the intention of a first imaging X-ray all-sky survey above an energy of 2 keV. eROSITA is scientific payload on the Russian research satellite SRG and the mission duration is scheduled for 7.5 years. The instrument comprises an array of seven identical and parallel-aligned telescopes. The mirror system is of Wolter-I type and the focal plane is equipped with a PNCCD camera for each of the telescopes. This instrumentation permits spectroscopy and imaging of X-rays in the energy band from 0.3 keV to 10 keV with a field of view of 1.0 degree. The camera development is done at the Max-Planck-Institute for Extraterrestrial Physics and in particular the key component, the PNCCD sensor, has been designed and fabricated at the semiconductor laboratory of the Max-Planck Society. All produced devices have been tested and the best selected for the eROSITA project. Based on calculations, simulations, and experimental testing of prototype systems, the flight cameras have been configured. We describe the detector and its performance, the camera design and electronics, the thermal system, and report on the latest estimates of the expected radiation damage taking into account the generation of secondary neutrons. The most recent test results will be presented as well as the status of the instrument development.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Norbert Meidinger, Norbert Meidinger, Robert Andritschke, Robert Andritschke, Florian Aschauer, Florian Aschauer, Walter Bornemann, Walter Bornemann, Valentin Emberger, Valentin Emberger, Tanja Eraerds, Tanja Eraerds, Maria Fürmetz, Maria Fürmetz, Olaf Hälker, Olaf Hälker, Gisela Hartner, Gisela Hartner, Walter Kink, Walter Kink, Siegfried Müller, Siegfried Müller, Daniel Pietschner, Daniel Pietschner, Peter Predehl, Peter Predehl, Jonas Reiffers, Jonas Reiffers, Sabine Walther, Sabine Walther, Georg Weidenspointner, Georg Weidenspointner, "Progress of the x-ray CCD camera development for the eROSITA telescope", Proc. SPIE 8859, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII, 88590B (26 September 2013); doi: 10.1117/12.2022630; https://doi.org/10.1117/12.2022630


Report on the eROSITA camera system
Proceedings of SPIE (July 23 2014)
CFHT MegaCam filter, shutter and roll pitch mechanisms
Proceedings of SPIE (March 06 2003)
UV/visible camera for the Clementine mission
Proceedings of SPIE (June 01 1995)
EPIC system onboard the ESA XMM
Proceedings of SPIE (October 30 1996)

Back to Top