Performance of a hybrid photon detector prototype with electrostatic cross-focussing and integrated silicon pixel readout for Cherenkov ring detection
✍ Scribed by M. Alemi; G. Barber; J. Bibby; M. Campbell; A. Duane; S. Easo; T. Gys; A. Halley; D. Piedigrossi; D. Puertolas; E. Rosso; B. Simmons; W. Snoeys; D. Websdale; S. Wotton; K. Wyllie
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 449 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0920-5632
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✦ Synopsis
We report on the first test beam performance of a hybrid photon detector prototype, using binary readout electronics, intended for use in the ring imaging Cherenkov detectors of the LHCb experiment at the CERN Large Hadron Collider. The photon detector is based on a crossfocussed image intensifier tube geometry. The anode consists of a silicon pixel array bumpbonded to a binary readout chip with matching pixel electronics. The detector has been installed in a quarter-scale prototype vessel of the LHCb ring imaging Cherenkov system. Focussed ring images produced by 120 GeV/c negative pions traversing an air radiator have been recorded. The observed light yield and Cherenkov angle resolution are discussed.