Cross talk study to the single photon response of a flat panel PMT for the RICH upgrade at LHCb

C. Arnaboldi, M. Artuso, M. Calvi, E. Fanchini, C. Gotti, M. Maino, C. Matteuzzi, D. L. Perego, G. Pessina, J. C. Wang

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

1 Scopus citations

Abstract

The Ring Imaging Cherenkov (RICH) detector at LHCb is now readout by Hybrid Photon Detectors. In view of its upgrade a possible option is the adoption of the flat panel Photon Multipliers Tubes, PMT. An important issue for the good reconstruction of the Cherenkov rings is a negligible level of cross-talk. We have experimentally studied the cross talk from the 16x16 pixels of the Hamamatsu H9500 PMT. Results have shown that for the single photon signal, as expected at LHCb, the statistics tied to the small number of electrons generated at the first dynode of the PMT chain (a few units) leads to a number of cross-talk signals that are a small fraction of the fired pixel. Due to the discrete nature of the electron charge, those few cross-talk signals have amplitude that is a significant fraction of the fired pixel, which is in consequence depleted.

Original languageEnglish (US)
Title of host publication2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Pages1513-1517
Number of pages5
DOIs
StatePublished - Dec 1 2009
Event2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009 - Orlando, FL, United States
Duration: Oct 25 2009Oct 31 2009

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
CountryUnited States
CityOrlando, FL
Period10/25/0910/31/09

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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    Arnaboldi, C., Artuso, M., Calvi, M., Fanchini, E., Gotti, C., Maino, M., Matteuzzi, C., Perego, D. L., Pessina, G., & Wang, J. C. (2009). Cross talk study to the single photon response of a flat panel PMT for the RICH upgrade at LHCb. In 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009 (pp. 1513-1517). [5402287] (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2009.5402287