Author/Authors :
Alexeev، نويسنده , , G and Auffray، نويسنده , , E and Baillon، نويسنده , , P and Barney، نويسنده , , D and Bassompierre، نويسنده , , G and Bateman، نويسنده , , E and Bell، نويسنده , , K.W and Benhammou، نويسنده , , Y and Bloch، نويسنده , , P and Bomestar، نويسنده , , D and Borgia، نويسنده , , B and Bourotte، نويسنده , , J and Burge، نويسنده , , S and Cameron، نويسنده , , W and Chipaux، نويسنده , , R and Cockerill، نويسنده , , D and Connolly، نويسنده , , J، نويسنده ,
Abstract :
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.
Keywords :
Crystal , CMS , ECAL , Energy resolution , APD , Electromagnetic calorimeter , Lead tungstate
