We apologize for the inconvenience!

CLASSE AND CHESS WEBSITES ARE TEMPORARILY OFFLINE

Because of planned construction activities, several CLASSE and CHESS websites and web services are currently unavailable. Please check again after Monday, July 31, 2023, 5:00 PM ET. We apologize for the inconvenience.

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The Cornell High Energy Synchrotron Source (CHESS) is operated and managed by Cornell University.

CHESS/Wilson Lab 161 Synchrotron Drive Ithaca, NY 14853