Development of 3D-DDTC pixel detectors for the ATLAS upgrade

We report on the development of n-on-p, 3D Double-Side Double Type Column (3D-DDTC) pixel detectors fabricated at FBK-irst (Trento, Italy) and oriented to the ATLAS upgrade. The considered fabrication technology is simpler than that required for full 3D detectors with active edge, but the detector e...

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Detalles Bibliográficos
Autores principales: Dalla Betta, Gian-Franco, Boscardin, Maurizio, Darbo, Giovanni, Gemme, Claudia, La Rosa, Alessandro, Pernegger, Heinz, Piemonte, Claudio, Povoli, Marco, Ronchin, Sabina, Zoboli, Andrea, Zorzi, Nicola
Lenguaje:eng
Publicado: 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2010.04.079
http://cds.cern.ch/record/1213880
Descripción
Sumario:We report on the development of n-on-p, 3D Double-Side Double Type Column (3D-DDTC) pixel detectors fabricated at FBK-irst (Trento, Italy) and oriented to the ATLAS upgrade. The considered fabrication technology is simpler than that required for full 3D detectors with active edge, but the detector efficiency and radiation hardness critically depend on the columnar electrode overlap and should be carefully evaluated. The first assemblies of these sensors (featuring 2, 3, or 4 columns per pixel) with the ATLAS FEI3 read-out chip have been tested in laboratory. Selected results from the electrical and functional characterization with radioactive sources are here discussed.

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