P. Nedelec
Laboratoire d'Annecy-le-Vieux de physique des particules
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Publication
Featured researches published by P. Nedelec.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1998
E. Auffray; P. Baillon; D. Barney; G Bassompierre; Ya Benhammou; A Blick; P. Bloch; P Bonamy; J. Bourotte; L Buiron; F. Cavallari; R. Chipaux; D. J. A. Cockerill; I. Dafinei; G. Davies; P. Depasse; K. Deiters; M Diemoz; L. Dobrzynski; S Donskov; H El Mamouni; C Ercoli; J. L. Faure; M. Felcini; F Gautheron; M Geleoc; A. Givernaud; S. Gninenko; N. Godinovic; D.J Graham
Tests of lead tungstate crystal matrices carried out in high-energy electron beams in 1996, using new crystals, new APDs and an improved test set-up, confirm that an energy resolution of better than 0.6% at 100 GeV can be obtained when the longitudinal uniformity of the struck crystal is adequate. Light loss measurements under low dose irradiation are reported. It is shown that there is no loss of energy resolution after irradiation and that the calibration change due to light loss can be tracked with a precision monitoring system. Finally, successful tests with a preshower device, equipped with silicon strip detector readout, are described.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1997
G Alexeev; E. Auffray; P. Baillon; D. Barney; G Bassompierre; E. Bateman; K. W. Bell; Ya Benhammou; P. Bloch; D Bomestar; B. Borgia; J. Bourotte; S Burge; W. Cameron; R. Chipaux; D. J. A. Cockerill; J.F. Connolly; I. Dafinei; P. Denes; P. Depasse; K. Deiters; L. Dobrzynski; H. El Mamouni; J. L. Faure; M. Felcini; M. Finger; Th. Flügel; F Gautheron; A. Givernaud; S. Gninenko
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.
