Hard X-ray polarimetry—an overview of the method, science drivers, and recent findings

T Chattopadhyay - Journal of Astrophysics and Astronomy, 2021 - Springer
The last decade has seen a leapfrog in the interest of X-ray polarimetry with a number of
new polarization measurements in hard X-rays from AstroSat, POLAR, GAP, and PoGO+ …

Understanding the origin of the positron annihilation line and the physics of supernova explosions

F Frontera, E Virgilli, C Guidorzi, P Rosati, R Diehl… - Experimental …, 2021 - Springer
Nuclear astrophysics, and particularly nuclear emission line diagnostics from a variety of
cosmic sites, has remained one of the least developed fields in experimental astronomy …

Gamma-ray polarimetry

D Bernard, T Chattopadhyay, F Kislat… - … of X-ray and Gamma-ray …, 2024 - Springer
While the scientific potential of high-energy X-ray and gamma-ray polarimetry has long been
recognized, measuring the polarization of high-energy photons is challenging. To date …

Compton polarimetry

E Del Monte, S Fabiani, M Pearce - Handbook of X-ray and Gamma-ray …, 2024 - Springer
Photons preferentially Compton scatter perpendicular to the plane of polarization. This
property can be exploited to design instruments to measure the linear polarization of hard X …

Characterization of a 5 mm thick CZT-Timepix3 pixel detector for energy-dispersive γ-ray and particle tracking

P Smolyanskiy, B Bergmann, P Burian, A Cherlin… - Physica …, 2023 - iopscience.iop.org
The present manuscript describes a comprehensive characterization of a novel highly
segmented 5 mm CZT sensor attached to Timepix3. First, the sensor's IV curve was …

A CZT 3D imaging spectrometer prototype with digital readout for high energy astronomy

N Auricchio, L Abbene, G Benassi, M Bettelli… - Nuclear Instruments and …, 2023 - Elsevier
The scientific challenges still open in hard X-rays and γ-rays astronomy require the
development of new instrumentation able to overcome the sensitivity limits of the present …

Results and Perspectives of Timepix Detectors in Space—From Radiation Monitoring in Low Earth Orbit to Astroparticle Physics

B Bergmann, S Gohl, D Garvey, J Jelínek… - Instruments, 2024 - mdpi.com
In space application, hybrid pixel detectors of the Timepix family have been considered
mainly for the measurement of radiation levels and dosimetry in low earth orbits. Using the …

Optimization of Energy Resolution in Topmetal-II Pixel Detector: An Exploration of Neural Network and Curve Fitting Strategies

N Fang, D Wang, Z Zhou, H Liu, H Wang… - … on Nuclear Science, 2024 - ieeexplore.ieee.org
This study aims to enhance the energy resolution of the Topmetal-II− pixel detector, which is
pivotal for capturing soft X-ray signals and accurately measuring X-ray polarization. To …

3DCaTM: a 3D Cadmium Zinc Telluride spectroscopic module for hard X-and γ-ray astronomy

E Caroli, L Abbene, A Zappettini, N Auricchio… - Memorie della Società …, 2022 - torrossa.com
In the hard X-/soft γ-ray energy band (10 keV-10 MeV), a number of primary astrophysical
questions are still open, mainly due to lack of sensitivity of the present instrumentation. New …

Polarimetry With a multilayer CdTe prototype for soft gamma-ray astrophysics

M Moita, RMC da Silva, JM Maia… - … on Nuclear Science, 2021 - ieeexplore.ieee.org
The development of a new generation of soft gamma-ray telescopes should allow
polarimetric measurements of astrophysical sources to be associated with the results from …