✦ LIBER ✦

The Pixel Hybrid Photon Detector of the LHCb RICH

✍ Scribed by F. Fontanelli

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 418 KB
Volume: 197
Category: Article
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2009.10.088

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✦ Synopsis

The LHCb experiment at the CERN Large Hadron Collider employs two Ring Imaging Cherenkov (RICH) detectors for particle identification. The first covers the charged particle momentum range 1-60 GeV/c using aerogel and C 4F10 radiators and the second covers up to 100 GeV/c using CF4. Cherenkov light will be detected using a novel type of position sensitive device: the pixel Hybrid Photon Detector (HPD). In the pixel HPD, photoelectrons are produced in a multialkali photocathode, accelerated and focused by an electrostatic field, and then detected by a pixelated silicon detector which is bump-bonded onto a 40 MHz read-out chip. This paper reports on the development of the LHCb RICH detectors and the performance of the HPDs.

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