The DSSC pixel readout ASIC with amplitude digitization and local storage for DEPFET sensor matrices at the European XFEL

Erdinger, Florian; Bombelli, L.; Comotti, D.; Facchinetti, Stefano; Fischer, P.; Hansen, Karsten; Kalavakuru, Pradeep; Kirchgeßner, M.; Manghisoni, M.; Porro, M.; Quartieri, E.; Reckleben, Christian; Soldat, Jan; Szymanski, J. E.

doi:10.1109/nssmic.2012.6551176

Cited by 22 publications

(14 citation statements)

References 5 publications

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“…These scattering patterns were recorded by a DSSC detector 48,49 1.44 m downstream of the sample. The detector had 1024 × 1024 pixels, arranged in 16 ladders of 128 × 512 hexagonal pixels with a cartesian spacing of 236 µm and 204 µm in x and y direction, respectively 50 . We applied a mask to remove parasitic infrared light and defective pixels from the recorded data, as discussed in detail in Supplementary Information S.6.…”

Section: Discussionmentioning

confidence: 99%

Observation of fluctuation-mediated picosecond nucleation of a topological phase

Büttner

Pfau²,

Böttcher

et al. 2020

Nat. Mater.

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Section: Discussionmentioning

confidence: 99%

Observation of fluctuation-mediated picosecond nucleation of a topological phase

Büttner

Pfau²,

Böttcher

et al. 2020

Nat. Mater.

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“…MM2 architecture, design, and test results are reported in [3]. Detailed characterizations of individual ASIC building blocks, namely of the analog front-end and of the ADC, can be found in [5] and [10], respectively.…”

Section: Dssc Prototype Set-upmentioning

confidence: 99%

“…At the time of writing this conference contribution, the MM3 prototype ASIC, the successor to the MM2 ASIC prototype that we used for the presented results, is being tested and verified (first results can be found in [3]). We intend to repeat the NLSR calibration with this new ASIC prototype, which offers multiple advantages over the current MM2 chip.…”

Section: Sum Mary and Prospectsmentioning

confidence: 99%

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Calibration of the non-linear system response of a prototype set-up of the DSSC detector for the European XFEL

Weidenspointner¹,

Andritschke²,

Erdinger

et al. 2012

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC)

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The DSSC (DEPFET Sensor with Signal Compres sion) is a new instrument with non-linear compression of the input signal in the sensor and with parallel signal processing (filtering, linear amplification, and digitization) for all pixels. The DSSC will serve as 2d imaging detector at the European X-ray Free Electron Laser (XFEL.EU) currently under construction in Hamburg, Germany. The DSSC design goal is to achieve at the same time single photon detection and high dynamic range of about 10 4 photons, both for photon energies down to 0.5 keY and read-out speeds up to 4.5 MHz. Realization of this goal requires an accurate calibration of the non-linear system response (NLSR) over the full dynamic range of the detector. We present our strategy for calibrating the NLSR, for each of the 1024 x 1024 DSSC pixels, in the laboratory. The feasibility of our calibration strategy is demonstrated experimentally by calibrating the NLSR of a DSSC prototype set-up consisting of a prototype DEPFET sensor with non-linear signal compression connected to a prototype read-out ASIC.

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“…The maximum focal plane 1 fill-factor is 85% with the present mechanical design. Each sensor is bump-bonded to eight mixed signal readout ASICs [13]. The ASICs are designed using 130-nm IBM CMOS technology and provide full parallel readout of 64 × 64 sensor pixels.…”

Section: Introductionmentioning

confidence: 99%

The MiniSDD-Based 1-Mpixel Camera of the DSSC Project for the European XFEL

Porro

Andricek

Castoldi

et al. 2021

IEEE Trans. Nucl. Sci.

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The first DSSC 1-megapixel camera became available at the European XFEL 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 keV 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. 256 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 European XFEL, the DSSC provides a peak frame rate of 4.5 MHz. The first megapixel camera is equipped with Miniaturized Silicon Drift Detector 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 (~10 4 photons/pixel/pulse) and single photon detection simultaneously requires a non-linear 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. The paper describes the The manuscript was submitted on 28.02.2021. The development described in this work was initiated, funded and coordinated by the European XFEL GmbH in the framework of the DSSC project.

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The DSSC pixel readout ASIC with amplitude digitization and local storage for DEPFET sensor matrices at the European XFEL

Cited by 22 publications

References 5 publications

Observation of fluctuation-mediated picosecond nucleation of a topological phase

Observation of fluctuation-mediated picosecond nucleation of a topological phase

Calibration of the non-linear system response of a prototype set-up of the DSSC detector for the European XFEL

The MiniSDD-Based 1-Mpixel Camera of the DSSC Project for the European XFEL

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