• Keller, J.
• Kroll, J.
• Hara, K.
• Klein, C.
• Jessiman, C.
• Poley, L.
• Zhou, Y.
• Unno, Y.
• Zatocilova, I.
• Mandić, I.
• Mikestikova, M.
• Kisliuk, D.
• Bach, E.
• Orr, R. S.
• Fleta, C.
• Latonova, V.
• Fadeyev, V.
• Mahtani, K.
• Bhardwaj, A.
• Koffas, T.
• Staats, E.
• Suzuki, J.
• Fournier, A.
• Nakamura, K.
• Martinez-Mckinney, F.
• Yarwick, J.
• Cindro, V.
• Howe, A.
• Affolder, A.
• Basso, M. J.
• Dowling, A.
• Stelzer, B.
• Ullán, M.

Abstract

<jats:title>Abstract</jats:title><jats:p>During the prototyping phase of the new ATLAS Inner-Tracker(ITk) strip sensors, a degradation of the device breakdown voltageat high humidity was observed. Although the degradation wastemporary, showing a fast recovery in dry conditions, the study ofthe influence of humidity on the sensor performance was critical toestablish counter-measures and handling protocols during productiontesting in order to ensure the proper performance of the upgradeddetector.The work presented here has the objective to study for the firsttime the breakdown voltage deterioration in presence of ambienthumidity of ATLAS ITk production-layout strip sensors with differentsurface properties, before and after proton, neutron and gammairradiations. A study of the humidity sensitivity of miniature ATLASITk strip sensors, before and after proton irradiations, is alsopresented to compare the sensitivity of devices with differentsizes.The sensors were also exposed for several days to high humidity withthe aim to recreate and evaluate the influence of the detectorintegration environment expected during the Large Hadron Collider(LHC) Long Shutdown 3 (LS3) in 2026, where the sensors will beexposed to ambient humidity for prolonged times.</jats:p>

Topics

• impedance spectroscopy
• phase
• Silicon