Publikationen P. Fischer & Arbeitsgruppe

by Fischer P, Zimmermann RK. and Maisano B

Abstract:

The detection of light from optical fibers is required in a variety of particle detector types like fiber trackers or sampling calorimeters. Instead of using classical photo sensors like PMTs or SiPMs and associated readout electronics, we propose to combine Single Photon Sensitive Avalanche Diodes (SPADs) and CMOS readout electronics on the same silicon die. We have developed, fabricated and initially characterized such a ‘Digital SiPM’ solution. In order to provide a high flexibility in fiber diameters and positions, our architecture allows for assigning the individual SPADs to programmable ‘groups’ which are routed to chip pins. The purely digital output signals provide the timing by the rising edge and an amplitude information by the pulse width. The first available chip has been successfully used to detect light of individual fibers from a fiber bundle. The proposed concept could significantly reduce the mechanical and electronic complexity as well as the cost of fiber readouts and possibly improve their performance.

Reference:

CMOS SPAD sensor chip for the readout of scintillating fibers (Fischer P, et al.), In Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, volume 1040, 2022.

Bibtex Entry:

@Article{FISCHER2022167033,
  title =        "{CMOS} {SPAD} sensor chip for the readout of
                 scintillating fibers",
  journal =      "Nuclear Instruments and Methods in Physics Research
                 Section A: Accelerators, Spectrometers, Detectors and
                 Associated Equipment",
  volume =       "1040",
  pages =        "167033",
  year =         "2022",
  ISSN =         "0168-9002",
  doi =          "10.1016/j.nima.2022.167033",
  author =       "Peter Fischer and Robert K. Zimmermann and Benedict
                 Maisano",
  keywords =     "Optical fiber readout, Digital SiPM, CMOS SPAD",
  abstract =     "The detection of light from optical fibers is required
                 in a variety of particle detector types like fiber
                 trackers or sampling calorimeters. Instead of using
                 classical photo sensors like PMTs or SiPMs and
                 associated readout electronics, we propose to combine
                 Single Photon Sensitive Avalanche Diodes (SPADs) and
                 CMOS readout electronics on the same silicon die. We
                 have developed, fabricated and initially characterized
                 such a ‘Digital SiPM’ solution. In order to provide
                 a high flexibility in fiber diameters and positions,
                 our architecture allows for assigning the individual
                 SPADs to programmable ‘groups’ which are routed to
                 chip pins. The purely digital output signals provide
                 the timing by the rising edge and an amplitude
                 information by the pulse width. The first available
                 chip has been successfully used to detect light of
                 individual fibers from a fiber bundle. The proposed
                 concept could significantly reduce the mechanical and
                 electronic complexity as well as the cost of fiber
                 readouts and possibly improve their performance.",
}