The measurement of cosmic-ray individual spectra provides unique information regarding the origin and propagation of astro-particles. Due to the limited acceptance of current space experiments, protons and nuclei around the "knee"region (∼1 PeV) can only be observed by ground based experiments. Thanks to an innovative design, the High Energy cosmic-Radiation Detection (HERD) facility will allow direct observation up to this energy region: the instrument is mainly based on a 3D segmented, isotropic and homogeneous calorimeter which properly measures the energy of particles coming from each direction and it will be made of about 7500 LYSO cubic crystals. The read-out of the scintillation light is done with two independent systems: the first one based on wave-length shifting fibers coupled to Intensified scientific CMOS cameras, the second one is made of two photo-diodes with different active areas connected to a custom front-end electronics. This photo-diode system is designed to achieve a huge dynamic range, larger than 107, while having a small power consumption, few mW per channel. Thanks to a good signal-to-noise ratio, the capability of a proper calibration, by using signals of both non-interacting and showering particles, is also guaranteed. In this paper, the current design and the performance obtained by several tests of the photo-diode read-out system are discussed. © 2022 IOP Publishing Ltd and Sissa Medialab.

Adriani, O., Antonelli, M., Basti, A., Berti, E., Betti, P., Bigongiari, G., et al. (2022). Development of the photo-diode subsystem for the HERD calorimeter double-readout. JOURNAL OF INSTRUMENTATION, 17(9) [10.1088/1748-0221/17/09/P09002].

Development of the photo-diode subsystem for the HERD calorimeter double-readout

Bigongiari G.;Brogi P.;Checchia C.;Maestro P.;Marrocchesi P. S.;Stiaccini L.;
2022-01-01

Abstract

The measurement of cosmic-ray individual spectra provides unique information regarding the origin and propagation of astro-particles. Due to the limited acceptance of current space experiments, protons and nuclei around the "knee"region (∼1 PeV) can only be observed by ground based experiments. Thanks to an innovative design, the High Energy cosmic-Radiation Detection (HERD) facility will allow direct observation up to this energy region: the instrument is mainly based on a 3D segmented, isotropic and homogeneous calorimeter which properly measures the energy of particles coming from each direction and it will be made of about 7500 LYSO cubic crystals. The read-out of the scintillation light is done with two independent systems: the first one based on wave-length shifting fibers coupled to Intensified scientific CMOS cameras, the second one is made of two photo-diodes with different active areas connected to a custom front-end electronics. This photo-diode system is designed to achieve a huge dynamic range, larger than 107, while having a small power consumption, few mW per channel. Thanks to a good signal-to-noise ratio, the capability of a proper calibration, by using signals of both non-interacting and showering particles, is also guaranteed. In this paper, the current design and the performance obtained by several tests of the photo-diode read-out system are discussed. © 2022 IOP Publishing Ltd and Sissa Medialab.
2022
Adriani, O., Antonelli, M., Basti, A., Berti, E., Betti, P., Bigongiari, G., et al. (2022). Development of the photo-diode subsystem for the HERD calorimeter double-readout. JOURNAL OF INSTRUMENTATION, 17(9) [10.1088/1748-0221/17/09/P09002].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1220438