The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection

An accurate flux measurement of low-energy charged particles trapped in the magnetosphere is necessary for space weather characterization and to study the coupling between the lithosphere and magnetosphere, which allows for the investigation of the correlations between seismic events and particle pr...

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Main Authors: Riccardo Nicolaidis, Francesco Nozzoli, Giancarlo Pepponi, Pierluigi Bellutti, Evgeny Demenev, Francesco Maria Follega, Roberto Iuppa, Veronica Vilona
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Physical Sciences Forum
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Online Access:https://www.mdpi.com/2673-9984/7/1/21
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author Riccardo Nicolaidis
Francesco Nozzoli
Giancarlo Pepponi
Pierluigi Bellutti
Evgeny Demenev
Francesco Maria Follega
Roberto Iuppa
Veronica Vilona
author_facet Riccardo Nicolaidis
Francesco Nozzoli
Giancarlo Pepponi
Pierluigi Bellutti
Evgeny Demenev
Francesco Maria Follega
Roberto Iuppa
Veronica Vilona
author_sort Riccardo Nicolaidis
collection DOAJ
description An accurate flux measurement of low-energy charged particles trapped in the magnetosphere is necessary for space weather characterization and to study the coupling between the lithosphere and magnetosphere, which allows for the investigation of the correlations between seismic events and particle precipitation from Van Allen belts. In this work, the project of a CubeSat space spectrometer, the Low-Energy Module (LEM), is shown. The detector will be able to perform an event-based measurement of the energy, arrival direction, and composition of low-energy charged particles down to 0.1 MeV. Moreover, thanks to a CdZnTe mini-calorimeter, the LEM spectrometer also allows for photon detection in the sub-MeV range, joining the quest for the investigation of the nature of Gamma-ray bursts. The particle identification of the LEM relies on the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Δ</mo><mi>E</mi><mo>−</mo><mi>E</mi></mrow></semantics></math></inline-formula> technique performed by thin silicon detectors. This multipurpose spectrometer will fit within a 10 × 10 × 10 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>cm</mi><mn>3</mn></msup></semantics></math></inline-formula> CubeSat frame, and it will be constructed as a joint project between the University of Trento, FBK, and INFN-TIFPA. To fulfil the size and mass requirements, an innovative approach, based on active particle collimation, was designed for the LEM; this avoids the heavy/bulky passive collimators of previous space detectors. In this paper, we will present the LEM geometry, its detection concept, and the results from the developed GEANT4 simulation.
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spelling doaj.art-c4ead2c66f6b4a3bb3ddc4e702afdc422023-11-18T12:20:25ZengMDPI AGPhysical Sciences Forum2673-99842023-02-01712110.3390/ECU2023-14055The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst DetectionRiccardo Nicolaidis0Francesco Nozzoli1Giancarlo Pepponi2Pierluigi Bellutti3Evgeny Demenev4Francesco Maria Follega5Roberto Iuppa6Veronica Vilona7Department of Physics, University of Trento, 38123 Trento, ItalyDepartment of Physics, University of Trento, 38123 Trento, ItalyFondazione Bruno Kessler, 38123 Trento, ItalyFondazione Bruno Kessler, 38123 Trento, ItalyFondazione Bruno Kessler, 38123 Trento, ItalyDepartment of Physics, University of Trento, 38123 Trento, ItalyDepartment of Physics, University of Trento, 38123 Trento, ItalyDepartment of Physics, University of Trento, 38123 Trento, ItalyAn accurate flux measurement of low-energy charged particles trapped in the magnetosphere is necessary for space weather characterization and to study the coupling between the lithosphere and magnetosphere, which allows for the investigation of the correlations between seismic events and particle precipitation from Van Allen belts. In this work, the project of a CubeSat space spectrometer, the Low-Energy Module (LEM), is shown. The detector will be able to perform an event-based measurement of the energy, arrival direction, and composition of low-energy charged particles down to 0.1 MeV. Moreover, thanks to a CdZnTe mini-calorimeter, the LEM spectrometer also allows for photon detection in the sub-MeV range, joining the quest for the investigation of the nature of Gamma-ray bursts. The particle identification of the LEM relies on the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Δ</mo><mi>E</mi><mo>−</mo><mi>E</mi></mrow></semantics></math></inline-formula> technique performed by thin silicon detectors. This multipurpose spectrometer will fit within a 10 × 10 × 10 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>cm</mi><mn>3</mn></msup></semantics></math></inline-formula> CubeSat frame, and it will be constructed as a joint project between the University of Trento, FBK, and INFN-TIFPA. To fulfil the size and mass requirements, an innovative approach, based on active particle collimation, was designed for the LEM; this avoids the heavy/bulky passive collimators of previous space detectors. In this paper, we will present the LEM geometry, its detection concept, and the results from the developed GEANT4 simulation.https://www.mdpi.com/2673-9984/7/1/21low-energy modulelow-energy particlesgamma-ray burstsspace weathercubesatΔ<i>E</i> − <i>E</i> technique
spellingShingle Riccardo Nicolaidis
Francesco Nozzoli
Giancarlo Pepponi
Pierluigi Bellutti
Evgeny Demenev
Francesco Maria Follega
Roberto Iuppa
Veronica Vilona
The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection
Physical Sciences Forum
low-energy module
low-energy particles
gamma-ray bursts
space weather
cubesat
Δ<i>E</i> − <i>E</i> technique
title The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection
title_full The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection
title_fullStr The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection
title_full_unstemmed The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection
title_short The Low-Energy Module (LEM): Development of a CubeSat Spectrometer for Sub-MeV Particles and Gamma-Ray Burst Detection
title_sort low energy module lem development of a cubesat spectrometer for sub mev particles and gamma ray burst detection
topic low-energy module
low-energy particles
gamma-ray bursts
space weather
cubesat
Δ<i>E</i> − <i>E</i> technique
url https://www.mdpi.com/2673-9984/7/1/21
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