Belle II silicon vertex detector (SVD)

(Belle-II SVD Collaboration)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Belle II experiment at the SuperKEKB collider in Japan will operate at an unprecedented luminosity of 8× 1035 cm-2 s-1, about 40 times larger than its predecessor, Belle. Its vertex detector is composed of a two-layer DEPFET pixel detector (PXD) and a four layer double-sided silicon microstrip detector (SVD). To achieve a precise decay-vertex position determination and excellent low-momentum tracking under a harsh background condition and high trigger rate of 10 kHz, the SVD employs several innovative techniques. In order to minimize the parasitic capacitance in the signal path, 1748 APV25 ASIC chips, which read out signal from 224 k strip channels, are directly mounted on the modules with the novel Origami concept. The analog signal from APV25 are digitized by a flash ADC system, and sent to the central DAQ as well as to online tracking system based on SVD hits to provide region of interests to the PXD for reducing the latter’s data size to achieve the required bandwidth and data storage space. Furthermore, the state-of-the-art dual phase CO2 cooling solution has been chosen for a combined thermal management of the PXD and SVD system. In this proceedings, we present key design principles, module construction and integration status of the Belle II SVD.

Original languageEnglish
Title of host publicationProceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2
EditorsZhen-An Liu
PublisherSpringer Science and Business Media, LLC
Pages414-420
Number of pages7
ISBN (Print)9789811313158
DOIs
Publication statusPublished - Jan 1 2018
Externally publishedYes
EventInternational Conference on Technology and Instrumentation in Particle Physics, TIPP 2017 - Beijing, China
Duration: May 22 2017May 26 2017

Publication series

NameSpringer Proceedings in Physics
Volume213
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Other

OtherInternational Conference on Technology and Instrumentation in Particle Physics, TIPP 2017
CountryChina
CityBeijing
Period5/22/175/26/17

Fingerprint

apexes
detectors
silicon
pixels
modules
application specific integrated circuits
data storage
flash
congressional reports
strip
Japan
actuators
capacitance
chips
luminosity
analogs
bandwidth
momentum
cooling
decay

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

(Belle-II SVD Collaboration) (2018). Belle II silicon vertex detector (SVD). In Z-A. Liu (Ed.), Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2 (pp. 414-420). (Springer Proceedings in Physics; Vol. 213). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-981-13-1316-5_78

Belle II silicon vertex detector (SVD). / (Belle-II SVD Collaboration).

Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2. ed. / Zhen-An Liu. Springer Science and Business Media, LLC, 2018. p. 414-420 (Springer Proceedings in Physics; Vol. 213).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

(Belle-II SVD Collaboration) 2018, Belle II silicon vertex detector (SVD). in Z-A Liu (ed.), Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2. Springer Proceedings in Physics, vol. 213, Springer Science and Business Media, LLC, pp. 414-420, International Conference on Technology and Instrumentation in Particle Physics, TIPP 2017, Beijing, China, 5/22/17. https://doi.org/10.1007/978-981-13-1316-5_78
(Belle-II SVD Collaboration). Belle II silicon vertex detector (SVD). In Liu Z-A, editor, Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2. Springer Science and Business Media, LLC. 2018. p. 414-420. (Springer Proceedings in Physics). https://doi.org/10.1007/978-981-13-1316-5_78
(Belle-II SVD Collaboration). / Belle II silicon vertex detector (SVD). Proceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2. editor / Zhen-An Liu. Springer Science and Business Media, LLC, 2018. pp. 414-420 (Springer Proceedings in Physics).
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abstract = "The Belle II experiment at the SuperKEKB collider in Japan will operate at an unprecedented luminosity of 8× 1035 cm-2 s-1, about 40 times larger than its predecessor, Belle. Its vertex detector is composed of a two-layer DEPFET pixel detector (PXD) and a four layer double-sided silicon microstrip detector (SVD). To achieve a precise decay-vertex position determination and excellent low-momentum tracking under a harsh background condition and high trigger rate of 10 kHz, the SVD employs several innovative techniques. In order to minimize the parasitic capacitance in the signal path, 1748 APV25 ASIC chips, which read out signal from 224 k strip channels, are directly mounted on the modules with the novel Origami concept. The analog signal from APV25 are digitized by a flash ADC system, and sent to the central DAQ as well as to online tracking system based on SVD hits to provide region of interests to the PXD for reducing the latter’s data size to achieve the required bandwidth and data storage space. Furthermore, the state-of-the-art dual phase CO2 cooling solution has been chosen for a combined thermal management of the PXD and SVD system. In this proceedings, we present key design principles, module construction and integration status of the Belle II SVD.",
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