Test results from a prototype lead tungstate crystal calorimeter with vacuum phototriode readout for the CMS experiment

Tests of a prototype for the electromagnetic calorimeter (ECAL) of the compact muon solenoid experiment (CMS) at the large hadron collider are described. The basic unit for the endcap ECAL in CMS is a 'supercrystal' of 25 lead tungstate crystals. Results are presented from tests of the fir...

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Detalles Bibliográficos
Autores principales: Apollonio, M, Barber, G, Bell, K W, Britton, D I, Brooke, J J, Brown, R M, Bourotte, J, Camanzi, B, Cockerill, D J A, Davies, G, Devitsin, E G, Gninenko, S N, Golubev, N A, Goussev, Y, Grafström, P, Haguenauer, Maurice, Head, R, Heath, H, Hobson, P R, Inyakin, A V, Katchanov, V A, Kirsanov, M M, Lintern, A L, Lodge, A, McLeod, E, Nash, S, Newbold, D, Ukhanov, M, Postoev, V E, Patalakha, D I, Presland, A, Probert, M, Seez, Christopher J, Semeniouk, I N, Seliverstov, D M, Smith, B, Sproston, M, Tapper, R J, Tchuiko, B
Lenguaje:eng
Publicado: 2002
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/S0168-9002(01)01987-8
http://cds.cern.ch/record/772071
Descripción
Sumario:Tests of a prototype for the electromagnetic calorimeter (ECAL) of the compact muon solenoid experiment (CMS) at the large hadron collider are described. The basic unit for the endcap ECAL in CMS is a 'supercrystal' of 25 lead tungstate crystals. Results are presented from tests of the first full-sized supercrystal in electron beams and in a 3 T magnetic field. The supercrystal was exposed to electron beams with energies from 25 to 180 GeV. An energy resolution (sigma sub E /E) of (0.48+-0.01)% was measured at 180 GeV.

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