Project History

  • 1996 - DOE advisory committee recommended that SNS be designed to eventually operate at a significantly higher power and include additional target stations. 
  • 1999 - Environmental Impact Statement for SNS included a second target station.
  • 2002 - The National Science Foundation commissioned a study of a short-pulse second target station for SNS.
  • 2007 - ORNL conducted a conceptual study to investigate the possibility of a second long-pulse target station for SNS. DOE issued the Interim Report on Facilities for the Future of Science, identifying the need for an SNS power upgrade and a second target station.
  • 2009 - DOE approved Critical Decision-0 (CD-0), acknowledging the scientific need for a second target station.
  • 2011, 2012 - Using laboratory directed research and development funds, ORNL conducted a study on optimizing neutron scattering at three ORNL facilities and developed the concept for a compact source coupled to a high-brightness moderator.
  • 2013 - A DOE advisory committee noted that the proposed second target station is “absolutely central” to US leadership in science but had significant scientific/engineering challenges to resolve.
  • 2013, 2014 - ORNL hosted Grand Challenge workshops across the US, collecting the science community’s input on emerging science needs that require research using neutrons. Input helped shape the science case. A technical design report describing the sub-system conceptual design approaches was written.
  • 2015, October - ORNL hosted a user workshop organized by the SNS and HFIR User Group, bringing the science community together to further develop the science case, refine and rank proposed instrument concepts.
  • 2015, November - Project management team formed.
  • 2016, January - Funding received to kick off development of conceptual design.