The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 18 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. We thank you in advance for your valuable feedback.
Fermi Gamma-ray Space Telescope
This webpage is kept for archival purposes only and is no longer updated or maintained.

The LAT Anti-Coincidence Detector

Please Note: The password protected material is no longer hosted on this website.
If you are interested in any of that material, please contact: Alex Moiseev or Dave Thompson.