The High-Energy Particle Detector (HEPD-01) is one of the particle detectors installed on board the China Seismo-Electromagnetic Satellite (CSES-01). The instrument consists of different subdetectors, including two planes of double-sided silicon microstrip sensors, a calorimeter constituted by 16 plastic scintillators and a layer of LYSO crystals, and a scintillator veto system surrounding the calorimeter. The detector is dedicated to the measurement of proton (30-200 MeV) and electron (3-100 MeV) fluxes, and their variations induced by short-time perturbations of the radiation belts due to solar, terrestrial, or anthropic phenomena. Although the detector is capable to measure particles with a galactic origin, due to its energy range and to the CSES-01 polar orbit, HEPD collects particles below the local geomagnetic cutoff for a large fraction of its total live time. In this work, the differential spectrum of re-entrant leptons (the downward-moving component of secondary electrons and positrons produced in the interactions of cosmic ray protons with the atmosphere) is measured in the near-equatorial region (altitude about 500 km) in the energy interval between 10 and 100 MeV where there is a lack of recent experimental data.
Measurement of the re-entrant lepton spectrum with the High-Energy Particle Detector on board CSES-01 / Sotgiu, A., Bartocci, S., Battiston, R., Benotto, F., Beole, S., Burger, W.J., Campana, D., Castellini, G., Cipollone, P., Coli, S., Conti, L., Contin, A., Cristoforetti, M., De Cilladi, L., De Donato, C., De Santis, C., Follega, F.M., Gebbia, G., Iuppa, R., Lolli, M., et al.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 395:(2022). (37th International Cosmic Ray Conference, ICRC 2021 deu 2021).
Measurement of the re-entrant lepton spectrum with the High-Energy Particle Detector on board CSES-01
Battiston R.;Burger W. J.;Cristoforetti M.;Follega F. M.;Gebbia G.;Iuppa R.;Masciantonio G.;Neubuser C.;Nozzoli F.;Palma F.;Ricci E.;Zuccon P.
2022-01-01
Abstract
The High-Energy Particle Detector (HEPD-01) is one of the particle detectors installed on board the China Seismo-Electromagnetic Satellite (CSES-01). The instrument consists of different subdetectors, including two planes of double-sided silicon microstrip sensors, a calorimeter constituted by 16 plastic scintillators and a layer of LYSO crystals, and a scintillator veto system surrounding the calorimeter. The detector is dedicated to the measurement of proton (30-200 MeV) and electron (3-100 MeV) fluxes, and their variations induced by short-time perturbations of the radiation belts due to solar, terrestrial, or anthropic phenomena. Although the detector is capable to measure particles with a galactic origin, due to its energy range and to the CSES-01 polar orbit, HEPD collects particles below the local geomagnetic cutoff for a large fraction of its total live time. In this work, the differential spectrum of re-entrant leptons (the downward-moving component of secondary electrons and positrons produced in the interactions of cosmic ray protons with the atmosphere) is measured in the near-equatorial region (altitude about 500 km) in the energy interval between 10 and 100 MeV where there is a lack of recent experimental data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
