Qualification of the Phase I Readout Chip

  • Simon SpannagelEmail author
Part of the Springer Theses book series (Springer Theses)


The redesigned readout chip (ROC) is a key component of the Phase I Pixel Detector Upgrade, and its functionality, operational reliability, and performance are of paramount importance. The characteristics of every design iteration of the chip have been thoroughly tested at the DESY-II Test Beam Facility using the Datura beam telescope as tracking reference. The tests provided valuable feedback to the chip designers and allowed to promptly identify design flaws and unexpected issues which were subsequently corrected for the final chip revision.


  1. 1.
    Y. Allkofer et al., Design and performance of the silicon sensors for the CMS barrel pixel detector. Nucl. Instr. Meth. Phys. A 584(1), 25–41 (2008). doi: 10.1016/j.nima.2007.08.151 ADSCrossRefGoogle Scholar
  2. 2.
    A. Dorokhov et al., Tests of silicon sensors for the CMS pixel detector. Nucl. Instr. Meth. Phys. A 530(1–2), 71–76 (2004). doi: 10.1016/j.nima.2004.05.050 ADSCrossRefGoogle Scholar
  3. 3.
    T. Rohe et al., Position dependence of charge collection in prototype sensors for the CMS pixel detector. IEEE T. Nucl. Sci. 51, 1150–1157 (2004). doi: 10.1109/TNS.2004.829487, arXiv:physics/0312009
  4. 4.
    S. Spannagel, Test beam campaigns for the CMS Phase I Upgrade pixel readout chip. J. Instrum. 9(12), C12001 (2014). doi: 10.1088/1748-0221/9/12/C12001, arXiv:1410.1399
  5. 5.
    S. Spannagel, Status of the CMS phase I pixel detector upgrade. Nucl. Instrum. Meth. Phys. A (2016). doi: 10.1016/j.nima.2016.03.028, arXiv:1511.06084
  6. 6.
    W. Weibull, A statistical distribution function of wide applicability. J. Appl. Mech. Trans. ASME 18(3), 293–297 (1951)zbMATHGoogle Scholar
  7. 7.
    S. Spannagel, B. Meier, H. Perrey, The pxarCore Library - Technical Documentation, Reference Manual, and Sample Applications, Technical Report CMS-NOTE-2016-001 (CERN, Geneva, 2015)Google Scholar
  8. 8.
    H.-C. Kästli, Private communication (2015)Google Scholar
  9. 9.
    H. Jansen et al., Performance of the EUDET-type beam telescopes. EPJ Tech. Instrum. 3(1), 7 (2016). doi: 10.1140/epjti/s40485-016-0033-2, arXiv:1603.09669

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.European Organization for Nuclear Research (CERN)GenevaSwitzerland

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