Strip sensor performance in prototype modules built for ATLAS ITk

ATLAS experiment is preparing an upgrade of its detector for High-Luminosity LHC (HL-LHC) operation. The upgrade involves installation of the new all-silicon Inner Tracker (ITk). In the context of the ITk preparations, more than 80 strip modules were built with prototype barrel sensors. They were te...

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Detalles Bibliográficos
Autores principales: Helling, C, Allport, P, Affolder, A A, Bernabeu, J, Fadeyev, V, Galloway, Z, Gignac, M, Gillberg, D, Glover, J, Gonella, L, Gunnell, J, Hommels, B, Hunter, A, Keller, J, Klein, C, Koffas, T, Lacasta, C, Martinez-Mckinney, F, Kang, N, Pyatt, S, Solaz, C, Staats, E, Thomas, J, Yarwick, J
Lenguaje:eng
Publicado: 2020
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2020.164402
http://cds.cern.ch/record/2748724
Descripción
Sumario:ATLAS experiment is preparing an upgrade of its detector for High-Luminosity LHC (HL-LHC) operation. The upgrade involves installation of the new all-silicon Inner Tracker (ITk). In the context of the ITk preparations, more than 80 strip modules were built with prototype barrel sensors. They were tested with electrical readout on a per-channel basis. In general, an excellent performance was observed, consistent with previous ASIC-level and sensor-level tests. However, the lessons learned included two phenomena important for the future phases of the project. First was the need to store and test the modules in a dry environment due to humidity sensitivity of the sensors. The second was an observation of high noise regions for 2 modules.

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