OFFICE OF SCIENCE The Making of the Spallation Neutron Source The Making of the Spallation Neutron Source A 25-Year Journey A 25-Year Journey Patricia Dehmer Patricia Dehmer Deputy Director for Science Programs & Acting Director Deputy Director for Science Programs & Acting Director Office of Science, U.S. Department of Energy Office of Science, U.S. Department of Energy Download this talk at http://www.science.doe.gov/SC-2/Deputy_Director-speeches-presentations.htm U.S.-Sweden First Joint Consultative Group Meeting U.S.-Sweden First Joint Consultative Group Meeting 21 April 2009 21 April 2009
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OFFICE OF SCIENCE The Making of the Spallation Neutron Source A 25-Year Journey Patricia Dehmer Deputy Director for Science Programs & Acting Director.
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OFFICE OF SCIENCE
The Making of the Spallation Neutron SourceThe Making of the Spallation Neutron SourceA 25-Year JourneyA 25-Year Journey
Patricia DehmerPatricia DehmerDeputy Director for Science Programs & Acting DirectorDeputy Director for Science Programs & Acting Director
Office of Science, U.S. Department of EnergyOffice of Science, U.S. Department of Energy
Download this talk at http://www.science.doe.gov/SC-2/Deputy_Director-speeches-presentations.htm
U.S.-Sweden First Joint Consultative Group MeetingU.S.-Sweden First Joint Consultative Group Meeting 21 April 200921 April 2009
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The 1984 “Seitz-Eastman Report” of the National Academy of Sciences The 1984 “Seitz-Eastman Report” of the National Academy of Sciences The first call for a pulsed spallation neutron source in the U.S.The first call for a pulsed spallation neutron source in the U.S.
The 1984 “Seitz-Eastman Report” (a.k.a., “Major Facilities for Materials Research and Related Disciplines”) presented priorities for new facilities.
The new facilities in order of priority were:
a 6 GeV synchrotron radiation facility (the Advanced Photon Source at ANL, commissioned in 1996);
an advanced steady state neutron facility (the Advanced Neutron Source at ORNL, terminated in 1995);
a 1 to 2 GeV synchrotron radiation facility (the Advanced Light Source at LBNL, commissioned in 1993); and
a high intensity pulsed neutron facility (the Spallation Neutron Source at ORNL, commissioned in 2006).
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Evolution of Machines for Neutron Beam ScatteringEvolution of Machines for Neutron Beam Scattering
FROM MATERIALS PROPERTIES … TO PROCESS AND FUNCTION
Overview of the TargetOverview of the Target –– 14 November 200514 November 2005Thom Mason, Jack Marburger, Jim Roberto
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Mercury Target ModuleMercury Target Module
Original target module has exceeded planned fluence goal (SNS power level is currently 700 kW) If target does not reach end of life by July 2009 shutdown, it will be removed to minimize impact on user program .
SNS Energy and Power on TargetSNS Energy and Power on Target
All instruments are approved through a formal processAll instruments are approved through a formal process
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SNS Power UpgradeSNS Power Upgrade
Linac beam energy upgrade to 1.3 GeV by adding 9 superconducting cryomodules. Eventual increases in H- ion source beam, improvements in target module, and other upgrades.
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SNS Second Target StationSNS Second Target Station
New spallation target and supporting systems and buildings Initial suite of neutron beam instruments Cost in the $1B range
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The Spallation Neutron Source – The First 25 Years’ of the JourneyThe Spallation Neutron Source – The First 25 Years’ of the Journey