The spectral redistribution function of eROSITA PNCCDs

Author

Granato, Stefanie ; Andritschke, Robert ; Elbs, Johannes ; Meidinger, Norbert ; Struder, L. ; Weidenspointner, Georg ; Krumrey, Michael ; Scholze, Frank

Author_Institution

Max Planck Inst. for Extraterrestrial Phys., Garching, Germany

fYear

2011

fDate

23-29 Oct. 2011

Firstpage

122

Lastpage

128

Abstract

The eROSITA instrument on the satellite Spektrum-Roentgen-Gamma will perform an all-sky survey as well as pointed observations in the low and medium X-ray energy regime. The 7 PNCCD detectors for this instrument are developed and manufactured at the MPI Semiconductor Laboratory. We summarize the characterization of this type of PNCCD regarding the spectral redistribution function in the photon energy range from 100 eV to 11 keV. We present the results of Geant4 simulations compared to our measurements. We explain the observed spectral features and their origin inside the detector.

Keywords

CCD image sensors; artificial satellites; astronomical instruments; astronomical surveys; Geant4 simulation; MPI Semiconductor Laboratory; Spektrum-Roentgen-Gamma satellite; all sky survey; eROSITA PNCCD; photon energy; spectral redistribution function; Aluminum; Area measurement; Electric potential; ISO standards; Lead; Semiconductor device measurement; Silicon; X-ray CCD; eROSITA; spectral redistribution; spectral response;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE

Conference_Location

Valencia

ISSN

1082-3654

Print_ISBN

978-1-4673-0118-3

Type

conf

DOI

10.1109/NSSMIC.2011.6154464

Filename

6154464