Belle II silicon vertex detector (SVD)

(Belle-II SVD Collaboration)

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルProceedings of International Conference on Technology and Instrumentation in Particle Physics 2017 - Volume 2
編集者Zhen-An Liu
出版社Springer Science and Business Media, LLC
ページ414-420
ページ数7
ISBN(印刷版)9789811313158
DOI
出版ステータスPublished - 2018
イベントInternational Conference on Technology and Instrumentation in Particle Physics, TIPP 2017 - Beijing, China
継続期間: 2017 5月 222017 5月 26

出版物シリーズ

名前Springer Proceedings in Physics
213
ISSN(印刷版)0930-8989
ISSN(電子版)1867-4941

Other

OtherInternational Conference on Technology and Instrumentation in Particle Physics, TIPP 2017
国/地域China
CityBeijing
Period17/5/2217/5/26

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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