35 papers
In orbit background for hard X-ray CubeSat polarimeters: case study of the CUSP mission in low-earth orbit
Abhay Kumar, Giovanni Lombardi, Riccardo Campana +45
The CUbesat Solar Polarimeter (CUSP) project aims to measure the linear polarization of solar flares in the 25 - 100 keV hard X-ray band using a Compton scattering polarimeter. CUS…
A Focal-plane X-ray Polarimeter with Spectral and Timing Capabilities for Future Missions
Hemanth Manikantan, Carlo Lefevre, Lorenzo Petrucci +16
The NASA-ASI mission Imaging X-ray Polarimeter Explorer (IXPE) firmly established X-ray polarimetry as a core observation pillar of high-energy astrophysics, alongside imaging, tim…
The CUSP CubeSat mission for space weather multi-physics analysis, design, and testing
Giovanni Lombardi, Riccardo Di Spirito, Sergio Fabiani +48
The CUbesat Solar Polarimeter (CUSP) mission aims to measure the linear polarization of solar flares in the hard X-ray band by means of a Compton scattering polarimeter. CUSP is a…
Compton Polarimeter Prototype for the CUbesat Solar Polarimeter (CUSP) mission
Nicolas De Angelis, Andrea Alimenti, Riccardo Campana +41
The paper presents the design, construction, and laboratory testing of a flight‑representative Compton polarimeter prototype for the CubeSat Solar Polarimeter (CUSP) mission, which…
Graph Neural Networks Trained on Null Signal for Angle Reconstruction in X-ray Polarimetry
Vittorio Latorre, Victor Rodriguez-Fernandez, Alessandro Di Marco +3
Scientific real detectors often produce sparse, irregular data defined on non-Euclidean domains, where conventional convolutional neural networks (CNNs) impose geometric biases tha…
A Large-Area Optical Time Projection Chamber for Hard X-ray Polarimetry with Directional Imaging of Low-Energy Electron Recoils
Davide Fiorina, Elisabetta Baracchini, Giorgio Dho +8
We report on the development of a large-volume, wide field-of-view time projection chamber (TPC) for X-ray polarimetry, featuring a triple-GEM amplification stage and optical reado…