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SNS on hiatus for upgrade

Posted at 6:48 pm September 25, 2023
By Oak Ridge Today Staff Leave a Comment

Construction is under way for the Proton Power Upgrade at Oak Ridge National Laboratory’s Spallation Neutron Source. (Photo credit: Brett Riffert/ORNL, U.S. Department of Energy)

The Spallation Neutron Source at Oak Ridge National Laboratory—already the world’s most powerful accelerator-based neutron source—will be on a planned hiatus through June 2024 as crews work to upgrade the facility.

Much of the work—part of the facility’s Proton Power Upgrade project—will involve building a connector between the accelerator and the planned Second Target Station at SNS, a press release said. When complete, the PPU project will bring the accelerator up to 2.8 megawatts from its current record-breaking 1.7 megawatts of beam power.

Workers will add about 3,000 square feet of concrete tunnel, the “stub,” which will integrate with an existing tunnel. Construction tasks include associated structures, roofing, geomembrane liner, tunnel waterproofing, electrical, fire alarm, ventilation systems, and controls.

“The construction crews have performed all of the excavation work and are transitioning to tunnel base and wall construction,” said ORNL’s Mark Champion, PPU project manager.

[Read more…]

Filed Under: Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy Tagged With: first target station, John Galambos, Mark Champion, neutron source, neutrons, Oak Ridge National Laboratory, ORNL, PPU, proton power upgrade, Second Target Station, SNS, Spallation Neutron Source, stub

ORNL pursuing two major upgrades at SNS

Posted at 1:39 pm July 27, 2017
By John Huotari Leave a Comment

An aerial view of the Spallation Neutron Source at Oak Ridge National Laboratory. (Photo by ORNL)

An aerial view of the Spallation Neutron Source on Chestnut Ridge at Oak Ridge National Laboratory. (Photo by ORNL)

 

Note: This story was updated at 10:15 a.m. Aug. 1.

Oak Ridge National Laboratory is pursuing two major upgrades to its Spallation Neutron Source that would allow new scientific research and could cost more than $1 billion.

The two proposed upgrades are a proton power upgrade and a second target station. The two projects are in different stages of review at the U.S. Department of Energy, ORNL spokesperson Morgan McCorkle said.

The proton power upgrade, or PPU, is being pursued first, and its current cost estimate is a little more than $200 million, McCorkle said. If approved, it would double the power of SNS’s proton beam from 1.4 megawatts to 2.8 megawatts.

The upgrade would allow new types of research at SNS, and it would increase the number of scientists who can use the facility each year, McCorkle said.

“The PPU will enable experiments that are not currently feasible, such as experiments on smaller or less concentrated samples, and experiments under more extreme environmental conditions,” McCorkle said. “The new scientific capabilities will support research in areas such as soft matter, quantum materials, chemistry, functional materials, and biology. Some examples of everyday products that may be improved by these discoveries include cell phones, batteries, computers, building materials, and drugs.”

The proton power upgrade would also eventually provide the extra power necessary for the proposed second target station, or STS. The design of the second target station is less mature, but the project could cost in the range of $1 billion and include about 300,000 square feet of new buildings, McCorkle said. The second target station would be on the east end of the SNS campus on Chestnut Ridge at ORNL.

[Read more…]

Filed Under: Federal, Front Page News, Government, Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy Tagged With: Basic Energy Sciences, budget request, Chestnut Ridge, Congress, DOE, Donald Trump, energy and water appropriations bill, HFIR, High Flux Isotope Reactor, House Appropriations Committee, linear accelerator, mercury target, Morgan McCorkle, neutron scattering, neutron sources, neutrons, Oak Ridge National Laboratory, Office of Science, ORNL, PPU, proton power upgrade, protons, Scientific Research, Second Target Station, Senate Appropriations Committee, SNS, SNS accelerator, SNS upgrade, Spallation Neutron Source, STS, Trump administration, tungsten target, U.S. Department of Energy

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