Journal ArticleDOI
Development of the DEPFET sensor with signal compression: A large format X-ray imager with mega-frame readout capability for the European XFEL
Matteo Porro,Ladislav Andricek,Stefan Aschauer,M. Bayer,Julian Becker,Luca Bombelli,Andrea Castoldi,G. de Vita,I. Diehl,F. Erdinger,Stefano Facchinetti,C. Fiorini,Peter Fischer,Thomas Gerlach,H. Graafsma,Chiara Guazzoni,Karsten Hansen,Pradeep Kalavakuru,H. Klar,Andreas Kugel,Peter Lechner,M. Lemke,G. Lutz,Massimo Manghisoni,Davide Mezza,Dirk Muntefering,Ullrich Pietsch,E. Quartieri,M. Randall,Valerio Re,Christian Reckleben,C. Sandow,Jan Soldat,Lothar Strüder,Janusz Szymanski,Georg Weidenspointner,C. B. Wunderer +36 more
- Vol. 59, Iss: 6, pp 3339-3351
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TLDR
The DSSC instrument as mentioned in this paper is based on a silicon pixel sensor with a DEPFET as a central amplifier structure and has detection efficiency close to 100% for X-rays from 0.5 keV up to 10 keV.Abstract:
We present the development of the DSSC instrument: an ultra-high speed detector system for the new European XFEL in Hamburg. The DSSC will be able to record X-ray images with a maximum frame rate of 4.5 MHz. The system is based on a silicon pixel sensor with a DEPFET as a central amplifier structure and has detection efficiency close to 100% for X-rays from 0.5 keV up to 10 keV. The sensor will have a size of approximately 210 × 210 mm composed of 1024 × 1024 pixels with hexagonal shape. Two hundred fifty six mixed signal readout ASICs are bump-bonded to the detector. They are designed in 130 nm CMOS technology and provide full parallel readout. The signals coming from the sensor are processed by an analog filter, immediately digitized by 8-bit ADCs and locally stored in an SRAM, which is able to record at least 640 frames. In order to fit the dynamic range of about 104 photons of 1 keV per pixel into a reasonable output signal range, achieving at the same time single 1 keV photon resolution, a non-linear characteristic is required. The proposed DEPFET provides the needed dynamic range compression at the sensor level. The most exciting and challenging property is that the single 1 keV photon resolution and the high dynamic range are accomplished within the 220 ns frame rate of the system. The key properties and the main design concepts of the different building blocks of the system are discussed. Measurements with the analog front-end of the readout ASIC and a standard DEPFET have already shown a very low noise which makes it possible to achieve the targeted single photon resolution for 1 keV photons at 4.5 MHz and also for 0.5 keV photons at half of the speed. In the paper the new experimental results obtained coupling a single pixel to an 8 × 8 ASIC prototype are shown. This 8 × 8 ASIC comprises the complete readout chain from the analog front-end to the ADC and the memory. The characterization of a newly fabricated non-linear DEPFET is presented for the first time.read more
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Proceedings ArticleDOI
Study of Systematic and Statistical Uncertainty in Offset, Noise, and Gain Determination of the DSSC Detector for the European XFEL
Georg Weidenspointner,S. Schlee,Andrea Castoldiy,Chiara Guazzoniy,Stefano Maffessantiy,Matteo Porro +5 more
TL;DR: A study of both systematic and statistical uncertainty in the determination of offset, noise, and gain in the DSSC (DEPFET Sensor with Signal Compression), based on simulated calibration data.
Journal ArticleDOI
Characterization of a novel pixelated Silicon Drift Detector (PixDD) for high-throughput X-ray astrophysics
Y. Evangelista,Filippo Ambrosino,Marco Feroci,P. Bellutti,Giuseppe Bertuccio,G. Borghi,Riccardo Campana,Michele Caselle,D. Cirrincione,F. Ficorella,Massimiliano Fiorini,F. Fuschino,M. Gandola,M. Grassi,C. Labanti,Piero Malcovati,F. Mele,Alfredo Morbidini,A. Picciotto,A. Rachevski,I. Rashevskaya,M. Sammartini,G. Zampa,N. Zampa,Nicola Zorzi,A. Vacchi +25 more
TL;DR: In this paper, a 16-pixel drift detector prototype (PixDD) was developed for soft X-rays with fast photon-by-photon response and nearly Fano-limited energy resolution for high throughput X-ray astronomy applications.
Proceedings ArticleDOI
Calibration processing at the European XFEL — Implementation and concepts
Steffen Hauf,Mattia Donato,Burkhard Heisen,Markus Kuster,Philipp-M. Lang,Luis Maia,Astrid Münnich,Tonn Rüter,Jolanta Sztuk,Monica Turcato,Krzysztof Wrona +10 more
TL;DR: This work presents how challenges in data correction and calibration are addressed for the AGIPD and LPD prototypes within XFEL's control and analysis framework Karabo, which integrates access to hardware conditions, acquisition settings and distributed computing.
Proceedings ArticleDOI
Low-noise fast charge sensitive amplifier with dynamic signal compression
TL;DR: The aim of the paper is to show the experimental results coming from the characterization of the first prototype of the circuit which has been designed in a 65 nm CMOS technology within the PixFEL Project funded by the INFN, Italy.
Proceedings ArticleDOI
The PPT-module: High-performance readout for the DSSC detector at XFEL
TL;DR: The first measurements from the data handling performance, the operation of the interface to the external timing and control system and the control software are presented.
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Processing the signals from solid-state detectors in elementary-particle physics
Emilio Gatti,P. F. Manfredi +1 more
Journal ArticleDOI
Large-format, high-speed, X-ray pnCCDs combined with electron and ion imaging spectrometers in a multipurpose chamber for experiments at 4th generation light sources
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