1. Characterization and performance of the ASIC (CITIROC) front-end of the ASTRI camera.
- Author
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Impiombato, D., Giarrusso, S., Mineo, T., Catalano, O., Gargano, C., La Rosa, G., Russo, F., Sottile, G., Billotta, S., Bonanno, G., Garozzo, S., Grillo, A., Marano, D., and Romeo, G.
- Subjects
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CHERENKOV radiation , *TELESCOPES , *INTEGRATED circuits , *IMAGING systems , *PHOTOMULTIPLIERS , *SILICON , *PULSE amplitude modulation , *CAMERAS - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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