The Belle Silicon Vertex Detector

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

The Belle Silicon Vertex Detector (SVD) was designed to measure B meson decay positions precisely for studies of time-dependent CP violation. Although the first version of SVD (SVD1) worked for 4 years from 1999 with excellent performance, its insufficient radiation hardness drove us to build a second generation SVD (SVD2). The SVD2 was installed in Belle in the summer of 2003 and has been working well. The strip yield is estimated to be more than 95%. The signal-to-noise ratios are obtained to be 18-36, depending on detector ladders. The intrinsic spatial resolutions are obtained to be 12.0±0.4 and 22.3±0.8μm for φ- and z-sides, where z-side measures positions along the beam direction and φ side is used for the azimuthal angle measurement. In this letter, an overview and performance results are provided for both generations of the Belle SVD.

Original languageEnglish
Pages (from-to)16-19
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume549
Issue number1-3
DOIs
Publication statusPublished - Sep 1 2005
Externally publishedYes
EventVERTEX 2003 -
Duration: Sep 14 2003Sep 19 2003

Keywords

  • Belle
  • KEKB
  • Silicon vertex detector

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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