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 is open until February 26, 2020                    

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

The 2020-A Proposal Call closed on September 18, for experiments anticipated to run at SNS from January to June 2020. Proposal collaborators will be notified of the status of their proposal by November 20, 2019.

Want some tips for proposal writing? SNS-HFIR Proposal Writing Tutorial 

Already awarded beam time? Start Planning Your Visit to ORNL.

Download the Call for Proposals flyer here:

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