Preshower detector for the CDF plug upgrade: test beam results

M. Albrow, S. Aota, G. Apollinari, T. Asakawa, M. Bailey, P. De Barbaro, V. Barnes, D. Benjamin, K. Biery, S. Blusk, A. Bodek, G. Bolla, L. Breccia, R. Brunetti, H. Budd, D. Cauz, L. Demortier, I. Fiori, M. Frautschi, Y. FukuiO. Ganel, Y. Gotra, S. Hahn, T. Handa, K. Hatakeyama, H. Ikeda, G. Introzzi, J. Iwai, T. Kikuchi, S. H. Kim, A. Köngeter, W. Kowald, A. Laasanen, J. Lamoureux, M. Lindgren, J. Liu, P. Melese, H. Minato, S. Murgia, H. Nakada, J. Patrick, G. Pauletta, W. Sakumoto, L. Santi, Y. Seiya, A. Solodsky, L. Spiegel, T. Thomas, R. Vilar, A. M. Walsh, R. Wigmans, S. Zucchelli

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


A preshower detector consisting of plastic scintillating plates with optical-fiber readout was tested at the Fermilab meson beamline. The detector was placed at a depth of about 1.5X0, followed by an electromagnetic and hadronic calorimeter, and exposed to positron, positively charged pion and positive muon beams with energies in the range of 5-227 GeV. Multianode phototubes, HAMAMATSU R5900-M16, were used for the photon readout. The efficiency for detecting two minimum ionizing particles with noise occupancy of < 1% was 90-100% for gains of (1-4) × 105. It was also found that by requiring an appropriately large signal in the preshower detector, the rate of charged pions depositing a large fraction of energy in the electromagnetic calorimeter could be reduced by a factor of 1.4-2.0 (1.4-2.8) while keeping 95% (90%) efficiency for positrons.

Original languageEnglish (US)
Pages (from-to)104-111
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - Jul 11 1999
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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