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

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

2009-10-19

arxiv.org/abs/0910.3629v1

Nucl.Instrum.Meth.A636:S15-S23,2011

Physics

Instrumentation and Detectors

20 pages, 14 figures, presented at 7th International "Hiroshima" Symposium on Development and Applications of Semiconductor Tr

Scientific paper

10.1016/j.nima.2010.04.079

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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