Design and technology of DEPFET pixel sensors for linear collider applications

Richter, R.; Andricek, L.; Fischer, P.; Heinzinger, K.; Lechner, P.; Lütz, G.; Perić, I.; Reiche, M.; Schäller, G.; Schnecke, M.; Schopper, F.; Soltau, H.; Strüder, L.; Treis, J.; Trimpl, M.; Ulrici, J.; Wermes, N.

doi:10.1016/s0168-9002(03)01802-3

Cited by 76 publications

(33 citation statements)

References 13 publications

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“…The proposal of such a device for application in colliders dates back to 2002 [7,8]. Devices with several tens of thousands of 20 × 20 µm 2 have since then been produced and operated successfully.…”

Section: Depfet Active Pixel Vertex Detectorsmentioning

confidence: 99%

DEPFET vertex detectors

Vos¹

2010

Proceedings of VERTEX 2009 (18th Workshop) — PoS(VERTEX 2009)

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The DEPFET collaboration pursues the development of ultra-thin and precise vertex detectors based on the concept of a depleted field effect transistor. In this contribution the status of several key pieces of the project will be reviewed. Particular emphasis will be given to the results on the performance of DEPFET prototypes that were tested in pion beams at CERN's Super Proton Synchrotron (SPS). The results confirm that the DEPFET concept satisfies the challenging requirements in future colliders.

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Section: Depfet Active Pixel Vertex Detectorsmentioning

confidence: 99%

DEPFET vertex detectors

Vos¹

2010

Proceedings of VERTEX 2009 (18th Workshop) — PoS(VERTEX 2009)

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“…For vertex measurement, Belle used four layers of double-sided silicon strip detectors in a barrel arrangement around the interaction point, called silicon vertex detector (SVD). In order to achieve a higher vertex resolution than Belle, Belle II will feature two additional layers of DEPFET [2] pixel detectors (PXD) very close to the beam pipe, surrounded by four SVD layers. This arrangement is shown in figure 1.…”

Section: Introductionmentioning

confidence: 99%

The ONSEN Data Reduction System for the Belle II Pixel Detector

Geßler¹,

Kühn

Lange

et al. 2015

IEEE Trans. Nucl. Sci.

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We present an FPGA-based online data reduction system for the pixel detector of the future Belle II experiment. The occupancy of the pixel detector is estimated at 3 %. This corresponds to a data output rate of more than 20 GB/s after zero suppression, dominated by background. The Online Selection Nodes (ONSEN) system aims to reduce the background data by a factor of 30. It consists of 33 MicroTCA cards, each equipped with a Xilinx Virtex-5 FPGA and 4 GiB DDR2 RAM. These cards are hosted by 9 AdvancedTCA carrier boards. The ONSEN system buffers the entire output data from the pixel detector for up to 5 seconds. During this time, the Belle II high-level trigger PC farm performs an online event reconstruction, using data from the other Belle II subdetectors. It extrapolates reconstructed tracks to the layers of the pixel detector and defines regions of interest around the intercepts. Based on this information, the ONSEN system discards all pixels not inside a region of interest before sending the remaining hits to the event builder system. During a beam test with one layer of the pixel detector and four layers of the surrounding silicon strip detector, including a scaled-down version of the high-level trigger and data acquisition system, the pixel data reduction using regions of interest was exercised. We investigated the data produced in more than 20 million events and verified that the ONSEN system behaved correctly, forwarding all pixels inside regions of interest and discarding the rest.Comment: 7 pages, 10 figure

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“…2 By now, several prototypes have been manufactured and were subject to intense studies, 3,4 and DEPFET APS based sensors turned out to be a promising new concept for both imaging applications and high resolution spectroscopy. With the advancement of technology, 5 DEPFET based large-area sensors come within reach, and a design concept for the Wide Field Imager (WFI) 6,7 of the X-ray Evolving Universe Spectroscopy (XEUS) 8,9 mission has been proposed, which includes an APS array with an area of 76.8 × 76.8 mm 2 , divided into 1024 × 1024 pixels. 10 A prototype production of DEPFET sensors dedicated to XEUS has recently been finished at the MPI semiconductor laboratory in Munich.…”

Section: Introductionmentioning

confidence: 99%

First results of DEPFET-based active-pixel-sensor prototypes for the XEUS wide-field imager

Treis

Fischer

Hälker

et al. 2004

High-Energy Detectors in Astronomy

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The concept of an Active Pixel Sensor (APS) based on the integrated detector/amplifier structure DEPFET (DEpleted P-channel Field Effect Transistor) has been developed to cope with the challenging requirements of the XEUS Wide Field Imager. The DEPFET-APS combines high energy resolution, fast readout, and random accessible pixels allowing the application of flexible readout modes. First prototypes of DEPFET-based Active Pixel Sensors with a 64 x 64 pixel format and 75 µm x 75 µm pixel area have been produced at the MPI semiconductor laboratory. The APS is read out row by row, i.e. the pixel signals of one row are processed in parallel by a 64 channel CMOS amplifier/multiplexer chip of the CAMEX type. The addressing of one row of pixels for readout and reset is done by two control chips of the SWITCHER type fabricated in a high-voltage CMOS technology. The processing time for one row is of the order of a few micro-seconds. APS operation, the control and data acquisition system are described, and first experimental results are presented.

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Design and technology of DEPFET pixel sensors for linear collider applications

Cited by 76 publications

References 13 publications

DEPFET vertex detectors

DEPFET vertex detectors

The ONSEN Data Reduction System for the Belle II Pixel Detector

First results of DEPFET-based active-pixel-sensor prototypes for the XEUS wide-field imager

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