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(For members) Three national labs building exascale computers

Posted at 6:39 pm February 4, 2019
By John Huotari Leave a Comment

The Oak Ridge National Laboratory is pictured above. (Photo by ORNL)

The central campus at Oak Ridge National Laboratory is pictured above. (Photo by ORNL)

 

The Oak Ridge National Laboratory is pictured above. (Photo by ORNL)

Three national laboratories, including Oak Ridge National Laboratory, are building new computer systems that could be many times more powerful than today’s top supercomputers.

The new machines are exascale systems. None have been delivered yet, but the planning for them started more than a year ago and the new high-performance systems could be delivered to the three laboratories in the next several years. Planning for the exascale computers was under way even before the world’s most powerful supercomputer, a petaflop system called Summit at ORNL, was unveiled in June 2018.

Exascale computers could be 50 to 100 more powerful than today’s petaflop computers, according to the U.S. Department of Energy. Besides ORNL, they could be located at Argonne National Laboratory southwest of Chicago and Lawrence Livermore National Laboratory east of San Francisco. The first system is expected at Argonne, followed by a second system at ORNL.

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Note: Most news stories on Oak Ridge Today are free, brought to you by Oak Ridge Today with help from our advertisers, sponsors, and subscribers. Some are considered premium content. This story is premium content. Premium content can include in-depth, investigative, and exclusive stories.

Filed Under: National Nuclear Security Administration, Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy Tagged With: ANL, Argonne National Laboratory, Aurora, Christopher J. Kramer, Collaboration of Oak Ridge Argonne and Livermore, computer systems, CORAL, Cray, DOE Office of Science, El Capitan, exascale, exascale computers, Frontier, Intel, Jeremy Thomas, Lawrence Livermore National Laboratory, LLNL, Mark Anderson, Morgan McCorkle, most powerful supercomputer, National Nuclear Security Administration, NNSA, Oak Ridge National Laboratory, ORNL, petaflop computers, petaflops, request for proposals, RFP, Rick Perry, summit, supercomputers, U.S. Department of Energy, U.S. Department of Energy Office of Science, UT-Battelle LLC

Crews start project to reduce maintenance, operations costs at Molten Salt Reactor

Posted at 8:38 pm January 22, 2019
By John Huotari Leave a Comment

The Molten Salt Reactor Experiment building at Oak Ridge National Laboratory housed the reactor and offices for operating personnel. The facility was constructed in the 1950s for a nuclear aircraft project and was later expanded significantly and retrofitted to accommodate the MSRE. (Photo courtesy U.S. Department of Energy/Oak Ridge National Laboratory)

The Molten Salt Reactor Experiment building at Oak Ridge National Laboratory housed the reactor and offices for operating personnel. The facility was constructed in the 1950s for a nuclear aircraft project and was later expanded significantly and retrofitted to accommodate the MSRE. (Photo courtesy U.S. Department of Energy/Oak Ridge National Laboratory)

 

Cleanup crews started a $4.7 million project this month to reduce maintenance and operations costs at the Molten Salt Reactor Experiment, which was shut down 50 years ago at Oak Ridge National Laboratory.

The project is expected to save nearly $25 million in costs, the U.S. Department of Energy Office of Environmental Management said in an “EM Update” published Tuesday.

The cost-reduction project will relocate employees stationed at the decades-old facility. Personnel currently housed in the building will move to other site locations to help with other projects, the “EM Update” said.

The project is expected to enhance the facility’s electrical distribution, sump pump, fire suppression, and monitoring systems.

“Although it was shut down 50 years ago, certain systems within the reactor building have continued to operate to keep the facility safe and stable until it can be demolished,” said the “EM Update,” with the Oak Ridge story contributed by Mike Butler. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, Oak Ridge Office of Environmental Management, ORNL, Slider, U.S. Department of Energy Tagged With: Alvin Weinberg, Bill McMillan, DOE, DOE Office of Environmental Management, EM, Jay Mullis, Molten Salt Reactor Experiment, MSRE, Oak Ridge National Laboratory, Oak Ridge Office of Environmental Management, ORNL, U.S. Department of Energy, UCOR

ORNL adding three-story office, laboratory building

Posted at 4:23 pm January 10, 2019
By John Huotari Leave a Comment

Oak Ridge National Laboratory is adding a three-story office and laboratory building on its central campus.

It would be the first time a building of this size has been added at ORNL since the Chemical and Materials Science building (Building 4100) was completed in 2011, spokesperson Morgan McCorkle said in a response to questions Thursday.

She said the new building will be located in the central part of the main ORNL campus between buildings 3500 and 3525.

“The facility will offer state-of-the-art laboratory space and offices to support a range of research activities, including growing missions in computing and materials science and development,” McCorkle said. “The space can be adapted to serve the needs of changing scientific programs and priorities.” [Read more…]

Filed Under: Business, Front Page News, Oak Ridge, Oak Ridge National Laboratory, ORNL, Slider, Top Stories, U.S. Department of Energy Tagged With: Morgan McCorkle, Oak Ridge National Laboratory, office and laboratory building, ORNL, request for information, U.S. Department of Energy, UT-Battelle

UT-Battelle will provide ORNL security starting in December

Posted at 10:49 am November 30, 2018
By John Huotari Leave a Comment

Oak Ridge National Laboratory Sign

Photo by ORNL

 

Starting in December, Oak Ridge National Laboratory and Y-12 National Security Complex will both manage their own security forces to protect their sites.

Y-12 has been managing its own protective force for about six years, ever since a former contractor, B&W Y-12, terminated a contract with WSI Oak Ridge after a security breach at the 811-acre plant. The current Y-12 contractor, Consolidated Nuclear Security LLC, confirmed this month that it has been responsible for security and security police officers since it began managing and operating the plant in July 2014.

On Friday, UT-Battelle, which manages and operates ORNL for the U.S. Department of Energy, said it is assuming responsibility for providing protective force services at the laboratory starting December 30. That’s when a new security contractor will take over at some federal sites in Oak Ridge.

ORNL Media Relations Manager Morgan McCorkle said about 90 employees who have been providing security services at ORNL under a contract with National Strategic Protective Services LLC will transition from NSPS to UT-Battelle. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Slider, Top Stories, U.S. Department of Energy, Y-12 National Security Complex Tagged With: B&W Y-12, Consolidated Nuclear Security LLC, Golden SVCS LLC, Morgan McCorkle, National Strategic Protective Services LLC, NSPS, Oak Ridge National Laboratory, ORNL, protective force, protective force contract, protective force services, security, Security Forces, security services, U.S. Department of Energy, UT-Battelle, WSI Oak Ridge, Y-12 National Security Complex

Supercomputers: Summit at ORNL still number one

Posted at 11:29 am November 12, 2018
By John Huotari Leave a Comment

Oak Ridge National Laboratory’s Summit supercomputer was named number one on the TOP500 List, a semiannual ranking of the world’s fastest computing systems on Monday, June 25, 2018. (Photo credit: Carlos Jones/Oak Ridge National Laboratory, U.S. Department of Energy)

Oak Ridge National Laboratory’s Summit supercomputer was again named number one on the TOP500 List, a semiannual ranking of the world’s fastest computing systems on Monday, Nov. 12, 2018. (Photo credit: Carlos Jones/Oak Ridge National Laboratory, U.S. Department of Energy)

 

The 200-petaflop Summit supercomputer at Oak Ridge National Laboratory stayed at number one on the semiannual TOP500 list of the world’s most powerful supercomputers released Monday.

The Sierra supercomputer at Lawrence Livermore National Laboratory in Livermore, California, climbed to number two from number three. That means the United States now has the top two systems in the world, a position that China held a year ago.

Summit, a water-cooled IBM-built supercomputer, debuted at number one on the TOP500 list in June. That was the first time since 2012 that the United States had the most powerful supercomputer in the world. The earlier top system, Titan, a Cray machine, is also located at ONRL. ORNL and LLNL are both U.S. Department of Energy laboratories.

Officials celebrated the launch of Summit in a ceremony attended by U.S. Energy Secretary Rick Perry on June 8. The supercomputer is capable of 200 petaflops, or 200,000 trillion calculations per second. That makes it about about eight times more powerful than Titan, its predecessor.

Besides being the most powerful, Summit has been described as the world’s smartest supercomputer, a machine that can learn. As big as two tennis courts, Summit has 4,608 compute servers. Each has two 22-core IBM Power9 central processing units (CPUs) and six NVIDIA Tesla V100 graphics processing unit (GPU) accelerators. That’s more than 9,000 conventional processors and nearly 28,000 graphics processors, or about 37,000 total. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Science, Slider, U.S. Department of Energy Tagged With: Cray, exascale computing, IBM, Lawrence Livermore National Laboratory, NVIDIA, Oak Ridge National Laboratory, ORNL, petaflops, quantum computing, Sierra, summit, Summit supercomputer, supercomputer, Titan, Top500, Top500 List, U.S. Department of Energy, world's most powerful supercomputers

Air Force, ORNL partner in high-performance computing & weather modeling system

Posted at 12:50 pm September 5, 2018
By Oak Ridge Today Staff Leave a Comment

To extend its weather modeling capabilities, the U.S. Air Force has joined the computing experts at the U.S. Department of Energy’s Oak Ridge National Laboratory in a strategic collaboration that includes procurement and operation of a new high-performance weather modeling computer system. Key members of the Air Force and ORNL teams gathered on July 10, 2018, to kick off the project and tour the facilities supporting the new system. (Photo courtesy ORNL)

To extend its weather modeling capabilities, the U.S. Air Force has joined the computing experts at the U.S. Department of Energy’s Oak Ridge National Laboratory in a strategic collaboration that includes procurement and operation of a new high-performance weather modeling computer system. Key members of the Air Force and ORNL teams gathered on July 10, 2018, to kick off the project and tour the facilities supporting the new system. (Photo courtesy ORNL)

 

For the U.S. military, accurate weather prediction is vital to both the planning and execution of worldwide missions. To extend its weather modeling capabilities, the U.S. Air Force has joined the computing experts at the U.S. Department of Energy’s Oak Ridge National Laboratory in a strategic collaboration that includes procurement and operation of a new high-performance weather modeling computer system. Key members of the Air Force and ORNL teams, including computing and global security team members, gathered on July 10 to kick off this project and tour the facilities supporting the new system, according to a story posted by ORNL.

The Air Force 557th Weather Wing provides the Air Force and Army with global- and regional-level numerical weather model forecasts. With the increasing scale of the requirements for the new system, the Air Force and ORNL identified an opportunity to take advantage of the capabilities of ORNL’s National Center for Computational Sciences—including expertise in high-performance computing facilities and infrastructure, systems administration, computing procurement and acquisition, and system operations, the story said.

“We learned about the Air Force’s needs, and it was immediately clear that ORNL could help them solve their problems,” said Jim Rogers, NCCS director of computing and facilities. “We can integrate the Air Force weather team’s needs into our facilities in a cost-effective way, leveraging our capabilities to deliver exceedingly high availability to support their mission.” [Read more…]

Filed Under: Federal, Government, Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy, Weather Tagged With: Air Force 557th Weather Wing, Air Force Weather, DOE, Earth system modeling, GALWEM, Global Air-Land Weather Exploitation Model, high-performance computing, high-performance weather modeling, Jeff Nichols, Jim Rogers, Kate Evans, machine learning, National Center for Computational Sciences, Oak Ridge National Laboratory, ORNL, Ralph Stoffler, U.S. Air Force, U.S. Department of Energy, weather, weather model, weather modeling

SNS completes full neutron production cycle at record power level

Posted at 3:31 pm August 9, 2018
By Oak Ridge Today Staff Leave a Comment

As protons (pink) strike the target vessel and pass into the liquid mercury inside, the protons are absorbed, creating neutrons (blue) that are then sent through moderators and beam tubes to research instruments to study the fundamental properties of materials. (Image credit: Jill Hemman/Oak Ridge National Laboratory, U.S. Department of Energy)

As protons (pink) strike the target vessel and pass into the liquid mercury inside, the protons are absorbed, creating neutrons (blue) that are then sent through moderators and beam tubes to research instruments to study the fundamental properties of materials. (Image credit: Jill Hemman/Oak Ridge National Laboratory, U.S. Department of Energy)

 

The Spallation Neutron Source at the U.S. Department of Energy’s Oak Ridge National Laboratory has reached a new milestone by operating a complete neutron production run cycle at 1.3 megawatts, a press release said.

“Achieving the record power level with a remarkable 94 percent accelerator beam availability establishes a new baseline of operation as well as a path to operate reliably at higher powers,” the press release said. “Increased power offers researchers the ability to conduct faster scientific analyses using neutrons on more types of materials.”

SNS, a DOE Office of Science User Facility, began operations in 2006 and is currently the world’s most powerful pulsed accelerator-based neutron scattering facility, used by scientists to reveal fundamental properties and behaviors of energy and materials at the atomic scale. Neutron contributions at SNS have resulted in advances in electronic devices, improved drug delivery, and stronger building materials for transportation infrastructure, the press release said. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Slider, Top Stories, U.S. Department of Energy Tagged With: DOE, liquid mercury target, neutron production, neutron production cycle, neutrons, Oak Ridge National Laboratory, Office of Science, ORNL, pulsed accelerator-based neutron scattering, record power level, SNS, Spallation Neutron Source, U.S. Department of Energy, UT-Battelle

For first time since 2012, US has top supercomputer in world

Posted at 1:37 pm June 25, 2018
By John Huotari Leave a Comment

Oak Ridge National Laboratory’s Summit supercomputer was named number one on the TOP500 List, a semiannual ranking of the world’s fastest computing systems on Monday, June 25, 2018. (Photo credit: Carlos Jones/Oak Ridge National Laboratory, U.S. Department of Energy)

Oak Ridge National Laboratory’s Summit supercomputer was named number one on the TOP500 List, a semiannual ranking of the world’s fastest computing systems on Monday, June 25, 2018. (Photo credit: Carlos Jones/Oak Ridge National Laboratory, U.S. Department of Energy)

 

For the first time since 2012, the United States has the most powerful supercomputer in the world, and it’s again located at Oak Ridge National Laboratory.

The new supercomputer, called Summit, is capable of 200 petaflops, or 200,000 trillion calculations per second. Equipment delivery for Summit was completed in March, and officials celebrated the launch of the supercomputer in a ceremony attended by U.S. Energy Secretary Rick Perry on June 8.

The last time the United States had the top supercomputer was in November 2012. That machine, which is still in use, is named Titan, and it’s also at ORNL. It’s now number seven on the semiannual TOP500 list, which was released Monday.

China had held the top spot since June 2013, and the country had held the top two spots since June 2016. That ended with Monday’s TOP500 announcement. Previously at number one and number two, the top two Chinese supercomputers have fallen to number two and number four.

ORNL, a U.S. Department of Energy laboratory, now has two of the top seven systems on the list. They are Summit at number one and Titan at number seven. The United States now has six of the top 10 machines, according to the TOP500 list. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy Tagged With: AI Bridging Cloud Infrastructure, China, Chuck Fleischmann, Cray, exascale computing, High Performance Linpack, hybrid CPU-GPU architecture, IBM, IBM Power9 central processing unit, ISC High Performance conference, Jaguar, Japan, Lamar Alexander, Lawrence Livermore National Laboratory, Lenovo, Linux operating system, Mellanox EDR InfiniBand network, Milky Way-2A, most powerful supercomputer, NVIDIA Tesla V100 graphics processing unit, Oak Ridge National Laboratory, ORNL, petaflops, quantum computing, Red Hat, Sierra, smartest supercomputer, summit, Sunway TaihuLight, supercomputer, supercomputers, Thomas Zacharia, Tianhe-2, Tianhe-2A, Titan, Top500, Top500 List, U.S. Department of Energy, United States

ORNL again has world’s most powerful supercomputer

Posted at 9:03 pm June 8, 2018
By John Huotari Leave a Comment

Pictured above being interviewed by a CNBC television crew before a ceremony on Friday afternoon, June 8, 2018, for the new Summit supercomputer at Oak Ridge National Laboratory are Ginni Rometty, left, chairman, president, and chief executive officer of IBM; Rick Perry, second from right, U.S. Department of Energy secretary; and Jensen Huang, right, founder, president, and CEO of NVIDIA. (Photo by John Huotari/Oak Ridge Today)

Pictured above being interviewed by a CNBC television crew before a ceremony on Friday afternoon, June 8, 2018, for the new Summit supercomputer at Oak Ridge National Laboratory are Ginni Rometty, left, chairman, president, and chief executive officer of IBM; Rick Perry, second from right, U.S. Department of Energy secretary; and Jensen Huang, right, founder, president, and CEO of NVIDIA. (Photo by John Huotari/Oak Ridge Today)

Note: This story was last updated at 6 p.m. June 9.

Oak Ridge National Laboratory again has the world’s most powerful supercomputer. It’s also the world’s smartest supercomputer, a machine that can learn—and run software that will write software.

The supercomputer, called Summit, is capable of 200 petaflops, or 200,000 trillion calculations per second. During a Friday afternoon ceremony, U.S. Energy Secretary Rick Perry said Summit can save 30 years worth of desktop data in one hour. It is millions times faster than a really good high-end desktop, said Ginni Rometty, IBM chair, president, and chief executive officer.

A water-cooled IBM system, Summit is presumed to have bumped China from the top spot, at least among open-science systems or supercomputers that aren’t classified. It has successfully run the world’s first exascale scientific calculation.

“We know we’re in competition, and it matters who gets there first,” Perry told several hundred people at the Friday afternoon ceremony at ORNL, a U.S. Department of Energy laboratory. “We reached a pinnacle today.”

Researchers at ORNL could find the cure for Alzheimer’s disease or cancer, Perry said. Winning the global supercomputing race could have benefits for all of humanity, said Jensen Huang, NVIDIA founder, president, and CEO. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy Tagged With: China, Chuck Fleischmann, Cray, exascale computing, Frontier, Ginni Rometty, IBM, Jack C. Wells, Jensen Huang, Larmar Alexander, Milky Way-2, most powerful supercomputer, NVIDIA, Oak Ridge Leadership Computing Facility, Oak Ridge National Laboratory, ORNL, quantum computing, Rick Perry, smartest supercomputer, summit, Sunway TaihuLight, supercomputer, Tianhe-2, Top500, U.S. Department of Energy, United States, world's most powerful supercomputer, world's smartest supercomputer

Final drums of old transuranic waste from ORNL prepared for disposal

Posted at 4:30 pm April 24, 2018
By John Huotari Leave a Comment

An aerial view of the Transuranic Waste Processing Center in Oak Ridge, where the final drums of legacy transuranic waste stored at Oak Ridge National Laboratory will be processed before shipment to the Waste Isolation Pilot Plant in New Mexico for permanent disposal. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

An aerial view of the Transuranic Waste Processing Center in west Oak Ridge, where the final drums of legacy transuranic waste stored at Oak Ridge National Laboratory will be processed before shipment to the Waste Isolation Pilot Plant in New Mexico for permanent disposal. (Photo courtesy U.S. Department of Energy Office of Environmental Management)

 

The final drums of old transuranic waste stored at Oak Ridge National Laboratory have been prepared for disposal.

The U.S. Department of Energy’s Oak Ridge Office of Environmental Management reported Tuesday that it had recently completed installing vents and sample ports in the final drums of the legacy transuranic waste stored at ORNL. The decade-long effort ensures that the drums do not contain any hazardous gases that could cause rapid combustion.

The ventilated unit where the drums were vented is closed and explosion-proof, DOE said. It is capable of withstanding a combustion event while keeping workers and ORNL, the nation’s largest multi-program national laboratory, safe, DOE said.

“Venting and sampling these drums is an essential part of the waste disposal process,” ORNL Portfolio Federal Project Director Bill McMillan said. “Now that we can ensure the safety of each drum, they are ready for transport to the Transuranic Waste Processing Center for processing and subsequent shipment to a permanent disposal facility away from Oak Ridge.” [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, Oak Ridge Office of Environmental Management, ORNL, Slider, U.S. Department of Energy Tagged With: Ben Williams, Bill McMillan, DOE, EM Update, legacy transuranic waste, Oak Ridge National Laboratory, Oak Ridge Office of Environmental Management, ORNL, transuranic waste, Transuranic Waste Processing Center, TRU waste, U.S. Department of Energy, U.S. Department of Energy Office of Environmental Management, UCOR, URS | CH2M Oak Ridge, waste disposal, Waste Isolation Pilot Plant, Wayne McKinney, WIPP

DOE announces $1.8 billion program for new supercomputers, with one at ORNL

Posted at 11:23 am April 9, 2018
By John Huotari Leave a Comment

Rick Perry

Rick Perry

Note: This story was last updated at 12 p.m.

The U.S. Department of Energy announced a new supercomputing program on Monday that could be worth up to $1.8 billion and deploy two systems, with one at Oak Ridge National Laboratory, that would be 50 to 100 times more powerful than today’s computers.

The new systems are called exascale computers. DOE said the new supercomputers will solidify United States leadership in exascale computing.

The initiative was announced by U.S. Energy Secretary Rick Perry in Washington, D.C., on Monday. Perry announced a request for proposals, or RFP, for the development of at least two new exascale supercomputers to be deployed at DOE national laboratories sometime around 2021-2023.

“The new supercomputers funded through this RFP will be follow-on systems to the first U.S. exascale system authorized by Secretary Perry this past June, named Aurora, which is currently under development at Argonne National Laboratory and scheduled to come online in 2021,” a press release said. The RFP announced Monday envisions the possibility of upgrades to Aurora or even a follow-on system in 2022-2023, “depending on an assessment of needs and opportunities at that time.” [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Slider, U.S. Department of Energy Tagged With: Argonne National Laboratory, Aurora, Chuck Fleischmann, Collaboration of Oak Ridge Argonne and Livermore, CORAL, DOE, DOE national laboratories, DOE Office of Science, exascale computer, exascale computing, Exascale Computing Project, exascale supercomputer, Frontier, House Energy and Water Development Subcommittee, Lawrence Livermore National Laboratory, National Nuclear Security Administration, NNSA, nuclear weapons, Oak Ridge National Laboratory, ORNL, request for proposals, RFP, Rick Perry, summit, supercomputer, supercomputing, supercomputing supremacy, Titan, Top500, U.S. Department of Energy, UT-Battelle LLC

For first time in 30 years, Savannah River dissolving spent nuclear fuel from ORNL reactor

Posted at 10:40 pm March 20, 2018
By John Huotari Leave a Comment

The reactor pool is pictured above in the reactor bay inside the High Flux Isotope Reactor at Oak Ridge National Laboratory on Thursday, March 15, 2018. Spent nuclear fuel is stored inside the pool. (Photo by John Huotari/Oak Ridge Today)

The reactor pool is pictured above in the reactor bay inside the High Flux Isotope Reactor at Oak Ridge National Laboratory on Thursday, March 15, 2018. Spent nuclear fuel is stored inside the pool. (Photo by John Huotari/Oak Ridge Today)

 

For the first time in 30 years, spent nuclear fuel from the High Flux Isotope Reactor at Oak Ridge National Laboratory has been dissolved at the Savannah River Site in South Carolina.

The work is important because it is expected to allow the reactor, known as HFIR, to continue its mission, according to the U.S. Department of Energy Office of Environmental Management.

HFIR, which uses highly enriched uranium, is one of the world’s most powerful nuclear research reactor facilities. It’s the highest flux reactor-based source of neutrons for research in the United States. Flux refers to the rate of flow of fluids, particles, or energy. In HFIR’s case, the flux is measured in neutrons per square centimeter per second. HFIR is used for neutron scattering and isotope production, among other missions.

ORNL will reach its maximum capacity for storing HFIR fuel in fiscal year 2020, the DOE Office of Environmental Management, or EM, said in an “EM Update” electronic newsletter on Tuesday. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, ORNL, Slider, Top Stories, U.S. Department of Energy Tagged With: DOE, DOE Office of Environmental Management, DOE-Savannah River Nuclear Materials, EM Update, flux reactor, H Canyon, HFIR, HFIR cores, HFIR fuel, HFIR fuel cores, HFIR fuel storage, High Flux Isotope Reactor, highly enriched uranium, isotope production, L Area, low enriched uranium, Maxcine Maxted, neutron scattering, neutrons, nuclear research reactor, Oak Ridge National Laboratory, Oak Ridge reactor, ORNL, reactor core, Savannah River Site, spent fuel, spent nuclear fuel, SRS, U.S. Department of Energy, U.S. Department of Energy Office of Environmental Management

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