Electronic calibration developed for the CMS electromagnetic calorimeter

An electronic system, designed to provide a relative calibration for the readout of the CMS electromagnetic calorimeter (CMS-ECAL), is described. On request, this system injects a pulse at the input of a predetermined group of preamplifiers with preselected amplitude and a shape identical to the one...

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Detalles Bibliográficos
Autores principales: Baek, Y W, Boget, D, David, P Y, Ditta, J, Hermel, V, Fouque, N, Mendiburu, J P, Nédélec, P, Peigneux, J P, Poireau, V, Rebecchi, P, Silou, D
Lenguaje:eng
Publicado: 2004
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2003.09.056
http://cds.cern.ch/record/816769
Descripción
Sumario:An electronic system, designed to provide a relative calibration for the readout of the CMS electromagnetic calorimeter (CMS-ECAL), is described. On request, this system injects a pulse at the input of a predetermined group of preamplifiers with preselected amplitude and a shape identical to the one produced by the photodetectors. Several chips, in DMILL 0.8 mu m technology, have been developed for integration on the front-end electronics. We describe the principle, the testing, the measurement of their precision, and radiation hardness. (6 refs).

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