Studies of lead tungstate crystal matrices in high energy beams for the CMS electromagnetic calorimeter at the LHC

G. Alexeev, E. Auffray, P. Baillon, D. Barney, G. Bassompierre, E. Bateman, K. W. Bell, Y. Benhammou, P. Bloch, D. Bomestar, B. Borgia, J. Bourotte, S. Burge, W. Cameron, R. Chipaux, D. Cockerill, J. Connolly, I. Dafinei, P. Denes, P. DepasseK. Deiters, L. Dobrzynski, H. El Mamouni, J. L. Faure, M. Felcini, M. Finger, T. Flügel, F. Gautheron, A. Givernaud, S. Gninenko, N. Godinovic, D. J. Graham, J. P. Guillaud, E. Guschin, M. Haguenauer, H. Hillemanns, H. Hofer, B. Ille, S. Jaaskelainen, V. Katchanov, B. Kennedy, T. Kirn, M. Korzhik, K. Lassila-Perini, M. Lebeau, P. Lebrun, P. Lecoq, G. Lecoeur, P. Lecomte, E. Leonardi, E. Locci, R. Loos, D. Ma, F. Martin, J. P. Mendiburu, Y. Musienko, P. Nedelec, F. Nessi-Tedaldi, D. Newbold, H. Newman, M. Oukhanov, L. Pacciani, J. P. Peigneux, S. Pirro, S. Popov, I. Puljak, C. Purves, D. Renker, F. Rondeaux, E. Rosso, R. Rusack, H. Rykaczewski, D. Schmitz, M. Schneegans, J. Schwenke, C. Seez, I. Semeniouk, P. Shagin, S. Shevchenko, X. Shi, D. Sillou, D. Simohand, A. Singovsky, I. Soric, B. Smith, R. Stephenson, P. Verrecchia, J. P. Vialle, T. S. Virdee, R. Y. Zhu

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Using matrices of lead tungstate crystals, energy resolutions better than 0.6% at 100 GeV have been achieved in the test beam in 1995. It has been demonstrated that a lead tungstate electromagnetic calorimeter read out by avalanche photodiodes can consistently achieve the excellent energy resolutions necessary to justify its construction in the CMS detector. The performance achieved has been understood in terms of the properties of the crystals and photodetectors.

Original languageEnglish (US)
Pages (from-to)425-434
Number of pages10
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number3
StatePublished - Feb 1 1997


  • APD
  • CMS
  • Crystal
  • ECAL
  • Electromagnetic calorimeter
  • Energy resolution
  • Lead tungstate


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