Total dose dependence of oxide charge, interstrip capacitance and breakdown behavior of sLHC prototype silicon strip detectors and test structures of the SMART collaboration

H. F.W. Sadrozinski, C. Betancourt, R. Heffern, I. Henderson, Jedediah Pixley, A. Polyakov, M. Wilder, M. Boscardin, C. Piemonte, A. Pozza, N. Zorzi, G. F. Dalla Betta, G. Resta, M. Bruzzi, A. Macchiolo, L. Borrello, A. Messineo, D. Creanza, N. Manna

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Within the R&D Program for the luminosity upgrade proposed for the Large Hadron Collider (LHC), silicon strip detectors (SSD) and test structures (TS) were manufactured on several high-resistivity substrates: p-type Magnetic Czochralski (MCz) and Float Zone (FZ), and n-type FZ. To test total dose (TID) effects they were irradiated with 60Co gammas and the impact of surface radiation damage on the detector properties was studied. Selected results from the pre-rad and post-rad characterization of detectors and TS are presented, in particular interstrip capacitance and resistance, break-down voltage, flatband voltage and oxide charge. Surface damage effects show saturation after 150 krad and breakdown performance improves considerably after 210 krad. Annealing was performed both at room temperature and at 60 °C, and large effects on the surface parameters observed.

Original languageEnglish (US)
Pages (from-to)769-774
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume579
Issue number2 SPEC. ISS.
DOIs
StatePublished - Sep 1 2007

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Keywords

  • Electrical variable measurements
  • Gamma ray effects
  • Position sensitive detectors
  • Radiation effects on semiconductors
  • Semiconductor device characterization
  • Solid-state detectors

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    Sadrozinski, H. F. W., Betancourt, C., Heffern, R., Henderson, I., Pixley, J., Polyakov, A., Wilder, M., Boscardin, M., Piemonte, C., Pozza, A., Zorzi, N., Dalla Betta, G. F., Resta, G., Bruzzi, M., Macchiolo, A., Borrello, L., Messineo, A., Creanza, D., & Manna, N. (2007). Total dose dependence of oxide charge, interstrip capacitance and breakdown behavior of sLHC prototype silicon strip detectors and test structures of the SMART collaboration. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 579(2 SPEC. ISS.), 769-774. https://doi.org/10.1016/j.nima.2007.05.287