Energetic X-ray Imaging Survey Telescope

This webpage is being kept for archival purposes only.
It may be updated in the future, but it is not currently being maintained.

EXIST Mission Design Summary

EXIST consists of the High Energy Telescope (HET), a system of coded-mask sub-telescopes with CZT detector planes, and the Optical-IR Telescope (IRT). The HET uses CsI anti-coincidence shielding to reduce the particle-induced background. This active shielding can also be used to detect photons up to roughly 20 MeV, with spatial resolution roughly equal to the collimation of each HET sub-telescope. The configuration of the telescopes is evolving rapidly, and a new baseline will be posted here in the near future.