Report/Journal Article

PUBDB-2016-00402

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Demonstrator of the Belle II Online Tracking and Pixel Data Reduction on the High Level Trigger System

Bilka, T. ; Casarosa, G. ; Fruhwirth, R. ; Kleinwort, C.DESY* ; Kodys, P. ; Kvasnicka, P. ; Lettenbichler, J. ; Paoloni, E. ; Rauch, J. ; Schlueter, T. A. (Corresponding author)Extern* ; Yashchenko, S.DESY*

2015
IEEE New York, NY

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Please use a persistent id in citations: doi:10.1109/TNS.2015.2419879

Report No.: arXiv:1406.4955

Abstract: The future Belle II experiment will employ a computer-farm based data reduction system for the readout of its innermost detector, a DEPFET-technology based silicon detector with pixel readout. A large fraction of the background hits can be rejected by defining a set of regions of interest (ROIs) on the pixel detector sensors (PXD) and then recording just the data from the pixels inside the ROI. The ROIs are defined on an event by event basis by extrapolating back onto the PXD the charged tracks detected in the outer trackers (a four-layer double-sided silicon strip detector surrounded by a wire chamber). The tracks are reconstructed in real time on the High Level Trigger (HLT). The pixel detector is then read out based on the ROI information. A demonstrator of this architecture was under beam test earlier this year in DESY (Hamburg, Germany). The demonstrator was operated in an electron beam whose momentum was in the 2-6 GeV/c range with a typical trigger rate of a few kilohertz in a magnetic field of strength up to 1 T. The demonstrator consists of one pixel sensor and four silicon strip sensors arranged in a five-layer configuration mimicking the Belle II vertex detector. The detector readout was a scaled down version of the full Belle II DAQ + HLT chain. The demonstrator was used to detect the particles, reconstruct in real time the trajectories, identify the ROIs on the PXD plane and record the PXD data within. We describe the requirements and the architecture of the final system together with the results obtained with the demonstrator.

Note: (c) IEEE

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Contributing Institute(s):

1. beauftragt von FH (Belle)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)
2. Experiments at KEK (BELLE I/II) (POF2-515) (POF2-515)
3. AIDA - Advanced European Infrastructures for Detectors at Accelerators (262025) (262025)

Experiment(s):

1. KEK: BELLE I/II

Appears in the scientific report 2015

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Database coverage:
; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Contribution to a conference proceedings/Internal Report Bilka, T. (Corresponding Author)Extern* ; Casarosa, G.Extern* ; Frühwirth, R. ; Kleinwort, C.DESY* ; Kodys, P.Extern* ; Kvasnicka, P.Extern* ; Lettenbichler, J.Extern* ; Paoloni, E.Extern* ; Rauch, J.Extern* ; Schlüter, T.Extern* ; Yashchenko, S.DESY*
Demonstrator of the Belle II Online Tracking and Pixel Data Reduction on the High Level Trigger System
201419th Real Time Conference, (RT2014), NaraNara, Japan, 26 May 2014 - 30 May 20142014-05-262014-05-30     Files  Fulltext Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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