Characterization and performance of the ASIC (CITIROC) front-end of the ASTRI camera

D. Impiombato; S. Giarrusso; T. Mineo; O. Catalano; C. Gargano; G. La Rosa; F. Russo; G. Sottile; S. Billotta; G. Bonanno; S. Garozzo; A. Grillo; D. Marano; G. Romeo

doi:10.1016/j.nima.2015.05.028

Characterization and performance of the ASIC (CITIROC) front-end of the ASTRI camera

Instrumentation and Detectors 2015-06-02 v1

Authors: D. Impiombato , S. Giarrusso , T. Mineo , O. Catalano , C. Gargano , G. La Rosa , F. Russo , G. Sottile , S. Billotta , G. Bonanno , S. Garozzo , A. Grillo , D. Marano , G. Romeo

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Abstract

The Cherenkov Imaging Telescope Integrated Read Out Chip, CITIROC, is a chip adopted as the front-end of the camera at the focal plane of the imaging Cherenkov ASTRI dual-mirror small size telescope (ASTRI SST-2M) prototype. This paper presents the results of the measurements performed to characterize CITIROC tailored for the ASTRI SST-2M focal plane requirements. In particular, we investigated the trigger linearity and efficiency, as a function of the pulse amplitude. Moreover, we tested its response by performing a set of measurements using a silicon photomultiplier (SiPM) in dark conditions and under light pulse illumination. The CITIROC output signal is found to vary linearly as a function of the input pulse amplitude. Our results show that it is suitable for the ASTRI SST-2M camera.

Keywords

CITIROC ASIC ASTRI camera front-end electronics Cherenkov telescope silicon photomultiplier trigger linearity characterization

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@article{arxiv.1506.00264,
  title  = {Characterization and performance of the ASIC (CITIROC) front-end of the ASTRI camera},
  author = {D. Impiombato and S. Giarrusso and T. Mineo and O. Catalano and C. Gargano and G. La Rosa and F. Russo and G. Sottile and S. Billotta and G. Bonanno and S. Garozzo and A. Grillo and D. Marano and G. Romeo},
  journal= {arXiv preprint arXiv:1506.00264},
  year   = {2015}
}

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25 pages, 16 figures, 1 table

Characterization and performance of the ASIC (CITIROC) front-end of the ASTRI camera

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