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Procedures for the relative calibration of the SiPM gain on ASTRI SST-2M camera

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Abstract

ASTRI SST-2M is one of the prototypes of the small size class of telescopes proposed for the Cherenkov Telescope Array. Its optical design is based on a dual-mirror Schwarzschild-Couder configuration, and the camera is composed by a matrix of monolithic multipixel silicon photomultipliers managed by ad-hoc tailored front-end electronics. This paper describes the procedures for the gain calibration on the ASTRI SST-2M. Since the SiPM gain depends on the operative voltage and the temperature, we adjust the operative voltages for all sensors to have equal gains at a reference temperature. We then correct gain variations caused by temperature changes by adjusting the operating voltage of each sensor. For that purpose the SiPM gain dependence on operating voltage and on temperature have been measured. In addition, we present the calibration procedures and the results of the experimental measurements to evaluate, for each pixel, the parameters necessary to make the trigger uniform over the whole focal plane.

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Notes

  1. http://www.lakeshore.com/Documents/LSTC_325_l.pdf.

  2. http://www.ni.com/labview/i/.

  3. http://www.weeroc.com/.

References

  1. Weekes, T.C., et al.: Observation of TeV gamma rays from the Crab nebula using the atmospheric Cerenkov imaging technique. ApJ 342, 379–395 (1989)

    Article  ADS  Google Scholar 

  2. Heß, M., Bernlöhr, K., Daum, A., et al.: The time structure of Cherenkov images generated by TeV γ-rays and by cosmic rays. Astropart. Phys. 11, 363–377 (1999)

    Article  ADS  Google Scholar 

  3. Hoffmann, W., et al.: The high energy stereoscopic system (HESS) project. Contrib. AIP, 515 (1999)

  4. Ferenc, D., et al.: The MAGIC gamma-ray observatory. NIM-A 553, 274–281 (2005)

    Article  ADS  Google Scholar 

  5. Holder, J., et al.: Status of the VERITAS Observatory. Contrib. AIP, 1085 (2008)

  6. Acharya, B. S., et al.: Introducing the CTA concept. Astropart. Phys. 43, 3–18 (2013)

    Article  ADS  Google Scholar 

  7. La Palombara, N., et al. (2014)

  8. Vercellone, S., et al.: The ASTRI mini-array within the future Cherenkov Telescope Array. In: Proc. RICAP 2014, EPJ Web of Conferences, EDP Sciences, arXiv:1508.00799 (2015)

  9. The ASTRI Collaboration. Contributions to the 33rd ICRC - arXiv:1307.4639 (2013)

  10. Pareschi, G., et al. The dual-mirror small size telescope for the Cherenkov telescope array. In: 33rd ICRC - arXiv:1307.4962 (2013)

  11. Actis, M., et al.: The CTA Consortium. Design concepts for the Cherenkov telescope array CTA: An advanced facility for ground-based high-energy gamma-ray astronomy. Exp. Astron. 32, 193–316, 3 (2011)

    Article  ADS  Google Scholar 

  12. Canestrari, R., et al. The ASTRI SST-2M prototype: Structure and mirror. n: 33rd ICRC - arXiv:1307.4851 (2013)

  13. Catalano, O., et al.: The camera of the ASTRI SST-2M prototype for the Cherenkov telescope array. In: Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91470D. doi:10.1117/12.2055099(2014)

  14. Hamamatsu: Tech. Rep. KSX-0046 B-2, Hamamatsu Photonics K.K., Solid State Division (2011)

  15. Marano, D., et al.: Electro-optical characterization of MPPC detectors for the ASTRI Cherenkov telescope camera. Nuclear Instruments and Methods in Physics Research Section A 768 (2014)

  16. Fleury, J., et al.: Petiroc and Citiroc: Front-end ASICs for SiPM readout and ToF applications. J. Instrum. 9, C01049 (2014)

    Article  Google Scholar 

  17. Impiombato, D., et al.: Characterization and performance of the ASIC (CITIROC) front-end of the ASTRI camera. Nuclear Instruments and Methods in Physics Research Section A 794 (2015)

  18. Actis, M., et al.: The CTA Consortium. Design concepts for the Cherenkov telescope array CTA: An advanced facility for ground-based high-energy gamma-ray astronomy. Exp. Astron. 32, 193–316 (2011). doi:10.1007/s10686-011-9247-0

  19. Buzhan, B., et al.: An advanced study of silicon photomultiplier ICFA. Instrum. Bull. 23, 28–41 (2001)

    Google Scholar 

  20. Impiombato, D., et al.: Temperature characterization of the CITIROC front-end chip of the ASTRI SST-2M Cherenkov camera. In: Proc. SPIE 9906 Ground-based and Airborne Telescopes VI, 990645. doi:10.1117/12.2231099 (2016)

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Acknowledgments

Authors thank the anonymous referee for his/her useful comments that really improved the paper. The work presented in this paper was supported in part by the ASTRI, “Flagship Project” financed by the Italian Ministry of Education, University, and Research (MIUR) and led by the Italian National Institute for Astrophysics (INAF). We also acknowledge partial support from MIUR Bando PRIN 2009 and TeChe.it 2014 Special Grants.

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Authors and Affiliations

  1. INAF, Istituto di Astrofisica Spaziale e Fisica cosmica di Palermo, via U. La Malfa 153, 90146, Palermo, Italy

    D. Impiombato, O. Catalano, S. Giarrusso, T. Mineo, G. La Rosa, C. Gargano, P. Sangiorgi, A. Segreto & G. Sottile

  2. INAF, Osservatorio Astrofisico di Catania, via S. Sofia 78, 95123, Catania, Italy

    G. Bonanno, S. Garozzo, A. Grillo, D. Marano & G. Romeo

  3. Instituto de Astronomia, Geofíca e Ciências Atmosféricas, Universidade de São Paulo Rua do Matão 1226, 05508-090, São Paulo, SP, Brazil

    R. Gimenes

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  1. D. Impiombato
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  2. O. Catalano
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  3. S. Giarrusso
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  4. T. Mineo
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  5. G. La Rosa
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  6. C. Gargano
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  7. P. Sangiorgi
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  8. A. Segreto
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  9. G. Sottile
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  10. G. Bonanno
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  11. S. Garozzo
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  12. A. Grillo
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  13. D. Marano
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  14. G. Romeo
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  15. R. Gimenes
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Correspondence to D. Impiombato.

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Impiombato, D., Catalano, O., Giarrusso, S. et al. Procedures for the relative calibration of the SiPM gain on ASTRI SST-2M camera. Exp Astron 43, 1–17 (2017). https://doi.org/10.1007/s10686-016-9516-z

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  • DOI: https://doi.org/10.1007/s10686-016-9516-z

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