Semiconductor Detector Developments for High Energy Space Astronomy

TL;DR

This paper reviews advancements in semiconductor detectors for high energy space astronomy, highlighting innovative detection techniques and materials to improve sensitivity from 0.1 keV to 10 MeV.

Contribution

It provides an overview of current and emerging semiconductor detection technologies and their applications in upcoming space missions for high energy astrophysics.

Findings

Solid-state detectors offer excellent imaging and spectroscopic capabilities.

Various semiconductor-based detection concepts are under development for future missions.

New sensing materials and electronics are being studied to enhance instrument performance.

Abstract

The rise of high energy astrophysics and solar physics in the 20th century is linked to the development of space telescopes; since the 1960s they have given access to the X-ray and gamma-ray sky, revealing the most violent phenomena in the Universe. Research and developments in imaging concepts and sensing materials haven't stopped since yet to improve the sensitivity of the X-ray and gamma-ray observatories. The paper proposes an overview of instrument realizations and focuses on the innovative detection techniques and technologies for applications from 0.1 keV to 10 MeV energy range. Solid-state detectors are prominent solutions for space instrumentation because of their excellent imaging and spectroscopic capabilities with limited volume and power resources. Various detection concepts based on semiconductors (Compton camera, Cd(Zn)Te pixel hybrids, DePFET active pixel sensors) are under design or fabrication for the near-future missions like Astro-H, BepiColombo, Solar Orbiter. New technologies on sensing materials, front-end electronics, interconnect processes are under study for the next generation of instruments to push back our knowledge of star and galaxy formation and evolution.