Exploring the Efficiency of HEPD-02 LYSO:Ce Scintillators in the CSES-02 Satellite Mission for Detecting Gamma-Ray Bursts

Lega, Alessandro; Follega, F. M.; Iuppa, R.; Mese, Marco; Nicolaidis, Riccardo; Nozzoli, F.; Sotgiu, Alessandro; Vilona, Veronica; Zuccon, P.

doi:10.22323/1.444.0758

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…The reported GRB observation by HEPD-01 is valuable per se, as an independent source of data, given the 5 yr uninterrupted observations, all-sky sensitivity (aside from the Earth obscuration), high-energy extended response, and considering the forthcoming launch of HEPD-02 (De Santis & Ricciarini 2021) on board the CSES-02 satellite. The secondgeneration HEPD-02 detector has a dedicated trigger system to detect photons interacting with the plastic scintillator range calorimeter, providing a peak sensitive area of ∼30 cm 2 at 2 MeV (Lega et al 2023), and with the LYSO bulk scintillators featuring an area of ∼150 cm 2 between 5 and 50 MeV (Follega 2023).…”

Section: Discussionmentioning

confidence: 99%

Gamma-Ray Burst Observations by the High-Energy Particle Detector on board the China Seismo-Electromagnetic Satellite between 2019 and 2021

Palma,

Martucci,

Neubüser

et al. 2023

ApJ

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In this paper we report the detection of five strong gamma-ray bursts (GRBs) by the High-Energy Particle Detector (HEPD-01) mounted on board the China Seismo-Electromagnetic Satellite, operational since 2018 on a Sun-synchronous polar orbit at a ∼507 km altitude and 97° inclination. HEPD-01 was designed to detect high-energy electrons in the energy range 3–100 MeV, protons in the range 30–300 MeV, and light nuclei in the range 30–300 MeV n−1. Nonetheless, Monte Carlo simulations have shown HEPD-01 is sensitive to gamma-ray photons in the energy range 300 keV–50 MeV, even if with a moderate effective area above ∼5 MeV. A dedicated time correlation analysis between GRBs reported in literature and signals from a set of HEPD-01 trigger configuration masks has confirmed the anticipated detector sensitivity to high-energy photons. A comparison between the simultaneous time profiles of HEPD-01 electron fluxes and photons from GRB190114C, GRB190305A, GRB190928A, GRB200826B, and GRB211211A has shown a remarkable similarity, in spite of the different energy ranges. The high-energy response, with peak sensitivity at about 2 MeV, and moderate effective area of the detector in the actual flight configuration explain why these five GRBs, characterized by a fluence above ∼3 × 10−5 erg cm−2 in the energy interval 300 keV–50 MeV, have been detected.

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Section: Discussionmentioning

confidence: 99%

Gamma-Ray Burst Observations by the High-Energy Particle Detector on board the China Seismo-Electromagnetic Satellite between 2019 and 2021

Palma,

Martucci,

Neubüser

et al. 2023

ApJ

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“…This energy range will not only be covered by instruments focused on improving the sensitivity, but also on proposals to improve the angular reconstruction of the received photons, like GECCO, the Compton satellite with Coded Aperture Mask [8]. Other instruments proposed in this energy range are balloons like SMILE-2 [9], GRAMS [10], miniSGD [11], HEPD-02, a payload of CSES [12] and the XRPix detector [13].…”

Section: The Mev Energy Rangementioning

confidence: 99%

ICRC 2023 Rapporteur: Status of the Gamma-ray Astronomy field

López Coto

2023

Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)

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This document attempts to summarize the Gamma ray section of the 38th International Cosmic Ray Conference held in Nagoya. There were 387 contributions submitted to this section distributed in 22 parallel oral and three poster sessions, plus four related highlight or review talks. The information included in this contribution is a description of what was reported at the conference, that represent the state of the art of the field.

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The Scintillation Counters of the High-Energy Particle Detector of the China Seismo-Electromagnetic (CSES-02) Satellite

Bartocci,

Battiston,

Beolè

et al. 2024

Remote Sensing

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The High-Energy Particle Detector (HEPD-02) is one of the scientific payloads of the China Seismo-Electromagnetic Satellite (CSES-02). The HEPD-02’s main purpose is to characterize the particle environment in the Earth’s vicinity, identifying sudden changes in the fluxes and correlating them with solar and terrestrial phenomena. Additionally, HEPD-02 also has capabilities in detecting Gamma-Ray Bursts. At the core of HEPD-02, a tower of scintillation counters made of plastic and LYSO crystals is able to recognize electrons in the range between 3 and 100 MeV, protons and nuclei between 30 and 200 MeV/n. Plastic scintillators covering the calorimeter on five sides allow to reject particles entering from the top and not completely absorbed within its volume. In this work, the design of the HEPD-02 is reviewed in comparison to its predecessor, HEPD-01, highlighting the innovations of the new design. The design of each scintillation counter type has been fully validated through a campaign of prototype realization, testing, and characterization. The production of the scintillation counters, including the PMT selection process, is also discussed. Finally, the performance of the counters is compared with simulations, showing an agreement of within 20% with the expected performance, thereby meeting expectations.

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Exploring the Efficiency of HEPD-02 LYSO:Ce Scintillators in the CSES-02 Satellite Mission for Detecting Gamma-Ray Bursts

Cited by 4 publications

References 4 publications

Gamma-Ray Burst Observations by the High-Energy Particle Detector on board the China Seismo-Electromagnetic Satellite between 2019 and 2021

Gamma-Ray Burst Observations by the High-Energy Particle Detector on board the China Seismo-Electromagnetic Satellite between 2019 and 2021

ICRC 2023 Rapporteur: Status of the Gamma-ray Astronomy field

The Scintillation Counters of the High-Energy Particle Detector of the China Seismo-Electromagnetic (CSES-02) Satellite

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