In the high-energy universe, gamma rays carry stories of the most violent cosmic events—supernovae, black hole mergers, and neutron star collisions. But capturing these fleeting messengers requires sophisticated Compton telescopes that can track scattered photons through multiple detector layers. MEGAlib bridges the gap between raw detector hits and breathtaking astronomical discoveries by providing the complete software pipeline for gamma-ray astronomy.

Built on the rock-solid foundation of Geant4 and ROOT, MEGAlib offers everything from detector geometry modeling to advanced Compton event reconstruction using both chi-square and Bayesian approaches. Whether you’re simulating electron-tracking detectors or implementing time-of-flight algorithms, the library handles the complex physics of gamma-ray interactions. Its specialized list-mode-likelihood-based image reconstruction transforms scattered photon data into clear sky maps, while built-in tools calculate response matrices, determine polarization signatures, and extract spectral information from your observations.

While originally crafted for space-based gamma-ray missions, MEGAlib has found surprising applications in medical imaging and environmental monitoring, proving that the techniques we use to study distant quasars can also save lives closer to home. With its comprehensive documentation and automated installation system, MEGAlib empowers both seasoned astrophysicists and curious developers to explore the high-energy cosmos through code.


Stars: 49
💻 Language: C++
🔗 Repository: zoglauer/megalib