The U.S. Department of Energy (DOE) scientific user facilities – the High Flux Isotope Reactor (HFIR) and the Spallation Neutron Source (SNS) – are US Department of Energy sponsored research facilities open to researchers for advancing research in science and technology. HFIR and SNS, two of the world’s most advanced neutron scattering research facilities, offer thirty instruments covering a wide range of science and capabilities. Beam time is granted through the User Program and is free of charge with the condition researchers publish their results, making them available to the scientific community.

For Industries interested in learning more about proprietary research or how neutrons can help solve problems in industry, visit the Industrial Applications Program webpage.

Proposal Call 2020-B Closed on February 26, 2020                    

The spring proposal call closed on February 26, 2020. This call is for experiments anticipated to run at HFIR between June-December 2020, and at SNS between July-December 2020.

The General User Program is on hold due to the COVID-19 pandemic. Award letters for the General User Proposal Call 2020-B will be delayed until a date is set for resuming the program.

The 2021-A Proposal Call will close on September 16, 2020.

Contact the User Office

The User Office is responsible for many aspects of the User Program. From submitting a proposal to coordinating your site access and training, the User Office staff are available to assist and answer your questions.


Phone: 865-574-4600