The construction of the CMS electromagnetic calorimeter: lead-tungstate (PWO) crystals

APD (Avalanche PhotoDiodes) photodetectors are being glued onto the rear face of PWO (lead tungstate, PbWO4) crystals ready for assembly. Fig. 2 shows a PWO crystal and Fig. 3 five crystals put on a tray to feed the automatic measurement machine. Two APDs are shown on pictures n. 4 and 5.

Detalles Bibliográficos
Publicado: 2001
Materias:
OUTREACH
Acceso en línea:http://cds.cern.ch/record/929101
Descripción
Sumario:APD (Avalanche PhotoDiodes) photodetectors are being glued onto the rear face of PWO (lead tungstate, PbWO4) crystals ready for assembly. Fig. 2 shows a PWO crystal and Fig. 3 five crystals put on a tray to feed the automatic measurement machine. Two APDs are shown on pictures n. 4 and 5.

Ejemplares similares