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The miniSDD-based 1-mpixel camera of the DSSC project for the European XFEL

The first DSSC 1-Mpixel camera became available at the European XFEL (EuXFEL) in the Hamburg area in February 2019. It was successfully tested, installed, and commissioned at the Spectroscopy and Coherent Scattering Instrument. DSSC is a high-speed, large-area, 2-D imaging detector system optimized...

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Main Authors: Porro, Matteo (Author) , Andricek, Ladislav (Author) , Aschauer, Stefan (Author) , Castoldi, Andrea (Author) , Donato, Mattia (Author) , Engelke, Jan (Author) , Erdinger, Florian (Author) , Fiorini, Carlo (Author) , Fischer, Peter (Author) , Graafsma, Heinz (Author) , Grande, Andrea (Author) , Guazzoni, Chiara (Author) , Hansen, Karsten (Author) , Hauf, Steffen (Author) , Kalavakuru, Pradeep (Author) , Klaer, Helmut (Author) , Tangl, Manfred (Author) , Kugel, Andreas (Author) , Kuster, Markus (Author) , Lechner, Peter (Author) , Lomidze, David (Author) , Maffessanti, Stefano (Author) , Manghisoni, Massimo (Author) , Nidhi, Sneha (Author) , Okrent, Frank (Author) , Re, Valerio (Author) , Reckleben, Christian (Author) , Riceputi, Elisa (Author) , Richter, Rainer (Author) , Samartsev, Andrey (Author) , Schlee, Stephan (Author) , Soldat, Jan (Author) , Strüder, Lothar (Author) , Szymanski, Janusz (Author) , Turcato, Monica (Author) , Weidenspointner, Georg (Author) , Wunderer, Cornelia B. (Author)
Format: Article (Journal)
Language:English
Published: June 2021
In: IEEE transactions on nuclear science
Year: 2021, Volume: 68, Issue: 6, Pages: 1334-1350
ISSN:1558-1578
Online Access: Get full text
Author Notes:Matteo Porro, Member, IEEE, Ladislav Andricek, Stefan Aschauer, Andrea Castoldi, Member, IEEE, Mattia Donato, Jan Engelke, Florian Erdinger, Carlo Fiorini, Senio Member, IEEE, Peter Fischer, Heinz Graafsma, Andrea Grande, Chiara Guazzoni, Senio Member, IEEE, Karsten Hansen, Senio Member, IEEE, Steffen Hauf, Pradeep Kalavakuru, Helmut Klaer, Manfred Tangl, Andreas Kugel, Member, IEEE, Markus Kuster, Peter Lechner, David Lomidze, Stefano Maffessanti, Massimo Manghisoni, Senio Member, IEEE, Sneha Nidhi, Frank Okrent, Valerio Re, Christian Reckleben, Elisa Riceputi, Rainer Richter, Andrey Samartsev, Stephan Schlee, Jan Soldat, Lothar Strüder, Janusz Szymanski, Monica Turcato, Georg Weidenspointner, and Cornelia B. Wunderer
Description
Summary:The first DSSC 1-Mpixel camera became available at the European XFEL (EuXFEL) in the Hamburg area in February 2019. It was successfully tested, installed, and commissioned at the Spectroscopy and Coherent Scattering Instrument. DSSC is a high-speed, large-area, 2-D imaging detector system optimized for photon science applications in the energy range between 0.25 and 6 keV. The camera is based on direct conversion Si sensors and is composed of 1024 ×1024 pixels of hexagonal shape with a side length of 136 μm. The 256 application-specific integrated circuits (ASICs) provide full parallel readout, comprising analog filtering, digitization, and in-pixel data storage. In order to cope with the demanding X-ray pulse time structure of the EuXFEL, the DSSC provides a peak frame rate of 4.5 MHz. The first Mpixel camera is equipped with miniaturized silicon drift detector (MiniSDD) pixel arrays. The intrinsic response of the pixels and the linear readout limit the dynamic range but allow one to achieve noise values of about 60 electrons r.m.s. at the highest frame rate. The challenge of providing high-dynamic range ( 104 photons/pixel/pulse) and single-photon detection simultaneously requires a nonlinear system front end, which will be obtained with the DEPFET active pixel technology foreseen for the advanced version of the camera. This technology will provide lower noise and a nonlinear response at the sensor level. This article describes the architecture of the whole detector system together with the main experimental results achieved up to now.
Item Description:Gesehen am 04.03.2022
Physical Description:Online Resource
ISSN:1558-1578

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