High Flux Isotope Reactor Archives

About 600 experiments affected by HFIR shutdown

Posted at 1:00 pm January 13, 2020
By John Huotari Leave a Comment

The High Flux Isotope Reactor vessel at Oak Ridge National Laboratory resides in a pool of water illuminated by the blue glow of the Cherenkov radiation effect. (Photo courtesy ORNL)

About 600 experiments and roughly 500 users were affected by the nearly year-long shutdown of the High Flux Isotope Reactor at Oak Ridge National Laboratory, the lab said Thursday.

HFIR, which is used for research and isotope production, restarted October 29, 2019. It had been shut down since November 13, 2018, after an elevated radiation leve l was detected in the reactor’s primary cooling system.

Reactors users who had approved proposals when HFIR was shut down have been running those experiments since it restarted in the fall, according to a response to questions provided by ORNL spokesperson Morgan McCorkle on Thursday. The backlog is expected to be completed by the spring.

The shutdown did not affect the production of plutonium-238, but it did delay the production and distribution of some medical and industrial isotopes, the lab’s response said.

[Read more…]

For members: DOE investigating fuel element performance after elevated radiation found at HFIR

Posted at 11:12 am December 17, 2019
By John Huotari Leave a Comment

High Flux Isotope Reactor at Oak Ridge National Laboratory

The High Flux Isotope Reactor is pictured above at Oak Ridge National Laboratory. (Photo courtesy ORNL)

The U.S. Department of Energy is investigating fuel element performance in the High Flux Isotope Reactor, which is used for research and isotope production at Oak Ridge National Laboratory, after elevated radiation levels were found in the cooling system last year, possibly due to a pinhole leak.

The investigation of potential noncompliances with DOE nuclear safety program requirements was announced this month by the DOE Office of Enterprise Assessments’ Office of Enforcement. The office notified UT-Battelle LLC, ORNL’s managing and operating contractor, and BWXT Nuclear Operations Group Inc. of Lynchburg, Virginia, on December 5. BWXT manufactured components that were involved.

ORNL has said the slightly elevated reading in the primary cooling system was well below alarm levels, and there was no impact to the public, the environment, or workers, and the reactor was not damaged or compromised.

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Reactor shutdown affects experiments, isotope production at HFIR

Posted at 9:34 am November 29, 2018
By John Huotari Leave a Comment

The High Flux Isotope Reactor vessel at Oak Ridge National Laboratory resides in a pool of water illuminated by the blue glow of the Cherenkov radiation effect. (Photo courtesy ORNL)

Experiments and isotope production have been affected, but employees are still able to carry out their normal duties at the High Flux Isotope Reactor as the U.S. Department of Energy investigates a slightly elevated radiation level in HFIR’s primary cooling system.

The High Flux Isotope Reactor, which is used for research and isotope production, is at Oak Ridge National Laboratory.

In a response to questions on Wednesday, ORNL Communications Director David Keim said the slightly elevated reading in the primary cooling system was well below alarm levels.

“The HFIR operators promptly responded to the reading and placed the reactor in a safe condition,” Keim said. [Read more…]

ORNL investigating elevated radiation in HFIR cooling system

Posted at 11:02 pm November 21, 2018
By John Huotari Leave a Comment

The High Flux Isotope Reactor vessel at Oak Ridge National Laboratory resides in a pool of water illuminated by the blue glow of the Cherenkov radiation effect. (Photo courtesy ORNL)

Oak Ridge National Laboratory is investigating an elevated radiation level in the cooling system at the High Flux Isotope Reactor, a research reactor that also produces isotopes.

Workers were bringing HFIR back online on Tuesday, November 13, after a planned outage when the elevated radiation level was detected in the cooling system, according to information provided by David Keim, ORNL communications director.

“HFIR operators decided to shut down the reactor in order to investigate and determine what happened,” Keim said. “The plant is in a safe condition.” [Read more…]

Vogel giving up Council seat in move to Idaho lab

Posted at 11:16 pm June 4, 2018
By John Huotari Leave a Comment

Hans Vogel

Oak Ridge City Council member Hans Vogel will give up his seat at the end of June because he is moving to Idaho National Laboratory in July.

Vogel made the announcement at the City Council meeting on Monday.

Vogel said he will be director of strategic irradiation capability for the Advanced Test Reactor at INL, which is in Idaho Falls, Idaho.

“It is a career opportunity,” Vogel said Monday night. “This opportunity at Idaho National Laboratory was something I couldn’t turn down.”

Vogel will also resign from his seat on the Oak Ridge Municipal Planning Commission. He was on the Planning Commission before he was elected to City Council in November 2016. He now serves as the City Council representative on Planning Commission. [Read more…]

Public can tour parts of ORNL, celebrate 75 years on Lab Day (June 9)

Posted at 4:46 pm April 27, 2018
By Oak Ridge Today Staff Leave a Comment

The public will have a chance to tour parts of Oak Ridge National Laboratory and help celebrate the lab’s 75th anniversary on Saturday, June 9, 2018. (Photo by ORNL)

The public will have a chance to tour parts of Oak Ridge National Laboratory and help celebrate the lab’s 75th anniversary on Saturday, June 9.

The event will include family-friendly activities, tours, demonstrations, and talks, a press release said.

The “75 Years of Science: Lab Day at ORNL” special event will give the public an opportunity to visit world-leading scientific facilities such as the Spallation Neutron Source and the Titan supercomputer, see one of the world’s first nuclear reactors, and interact with research staff, the press release said.

“The pioneering research of ORNL scientists and engineers has played a pivotal role in our nation’s history and continues to shape our future,” ORNL Director Thomas Zacharia said. “We look forward to welcoming the community to celebrate with us as we pursue another 75 years of leadership in science.”

Registration is required to attend the June 9 event. Advance registration for U.S citizens and non-U.S. citizens, ages 6 and up, will open Tuesday, May 1, and close Friday, May 11, at https://75thanniversary.ornl.gov/register/. Space is limited, and registration will close earlier than May 11 if all space is allotted. A limited number of day-of registration spots will be available for U.S. citizens only. [Read more…]

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)

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…]

NNSA developing research-reactor fuel that can’t be used in nuclear weapons

Posted at 3:39 pm December 22, 2017
By Oak Ridge Today Staff Leave a Comment

Qualification of the new high-density fuel will allow for the conversion of U.S. high performance research reactors, such as the Advanced Test Reactor located at Idaho National Laboratory, shown here. (Photo by National Nuclear Security Administration)

The National Nuclear Security Administration is leading an effort to develop and qualify a new fuel that will allow high-performance research reactors in the United States that currently use highly enriched uranium to be converted to reactors that use low-enriched uranium fuel.

The research reactors that could be converted include the High Flux Isotope Reactor at Oak Ridge National Laboratory.

The goal is to develop a fuel that cannot be used in a nuclear weapon. The research reactors perform unique science and are a critical part of the U.S. nuclear complex, but all together, they use 200 kilograms of highly enriched uranium each year. That’s enough material for at least eight weapons, according to the NNSA.

On Wednesday, the NNSA said it has presented the U.S. Nuclear Regulatory Commission with a preliminary report on uranium-molybdenum (U-Mo) monolithic fuel. The report contains data about the performance of the new fuel in a reactor and how it holds up under a variety of conditions. [Read more…]

Tourassi named top scientist at ORNL’s annual Awards Night

Posted at 3:47 pm October 29, 2017
By Oak Ridge Today Staff Leave a Comment

Georgia Tourassi, Director’s Award winner for Outstanding Individual Accomplishment in Science and Technology at Oak Ridge National Laboratory. (Photo by Oak Ridge National Laboratory, U.S. Department of Energy)

Georgia Tourassi of Oak Ridge National Laboratory’s Computing and Computational Sciences Directorate has received the ORNL Director’s Award for Outstanding Individual Accomplishment in Science and Technology.

The top scientist award was presented to Tourassi by ORNL Director Thomas Zacharia during Saturday night’s annual Awards Night event hosted by UT-Battelle, the management and operating contractor of ORNL for the U.S. Department of Energy, a press release said.

Tourassi was recognized for advancing the research, development, and deployment of artificial intelligence in data-driven biomedical discovery and medical imaging, including applications for cancer diagnosis and management, the press release said. She was also cited for her support of the missions of biomedical scientific societies and federal agencies and for mentoring students in biomedical science and technology.

Tourassi, who works in the Computational Sciences and Engineering Division and directs the laboratory’s Health Data Sciences Institute, also received the Distinguished Researcher award. [Read more…]

DOE labs, including ORNL, recognized as international R&D hub by IAEA

Posted at 7:48 pm September 18, 2017
By John Huotari Leave a Comment

The High Flux Isotope Reactor at Oak Ridge National Laboratory. (Photo courtesy U.S. Department of Energy/ORNL)

Federal laboratories in Oak Ridge and Idaho, along with a nuclear research center in Belgium, will make their research reactors, labs, and education and training facilities available to scientists from other countries for training, research, and development, officials announced at the IAEA General Conference in Austria on Monday.

The IAEA is the International Atomic Energy Agency.

The facilities that will make their reactors available are the U.S. Department of Energy’s Oak Ridge National Laboratory and Idaho National Laboratory, and the Belgian Nuclear Research Centre SCK*CEN, the IAEA said.

The institutions received designations as IAEA International Centres based on Research Reactor, or ICERR, the IAEA said.

The reactors include the High Flux Isotope Reactor at ORNL, the Advance Test Reactor at Idaho National Laboratory, and the Belgian Reactor 2. [Read more…]

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…]

He once called for eliminating DOE. Now Secretary Perry pledges to be an advocate.

Posted at 12:51 am May 23, 2017
By John Huotari Leave a Comment

Energy Secretary Rick Perry drives a 3D printed personal utility vehicle at Oak Ridge National Laboratory's Manufacturing Demonstration Facility on Hardin Valley Road on Monday, May 22, 2017. His passenger is Craig Blue, director of energy efficiency and renewable energy programs at ORNL. (Photo by John Huotari/Oak Ridge Today)

Energy Secretary Rick Perry drives a 3D-printed utility vehicle, or PUV, at Oak Ridge National Laboratory’s Manufacturing Demonstration Facility in Hardin Valley on Monday, May 22, 2017. His passenger is Craig Blue, director of energy efficiency and renewable energy programs at ORNL. (Photo by John Huotari/Oak Ridge Today)

Note: This story was last updated at 8:30 a.m. May 24.

HARDIN VALLEY—He once called for eliminating the U.S. Department of Energy, but after touring federal sites in Oak Ridge and Hardin Valley on Monday, new Energy Secretary Rick Perry pledged to be an advocate for at least some programs.

Perry, a former Texas governor who was confirmed as energy secretary on March 2, was asked about his comments calling for the elimination of three federal departments, including DOE, during the 2012 presidential campaign. His call to eliminate the three departments probably received more attention than it might have otherwise because, in a moment that received a lot of attention, Perry couldn’t recall the name of the Department of Energy during a November 2011 debate. Some believe that moment helped sink his presidential campaign.

Earlier this year, Perry told U.S. senators during his confirmation hearing that he regretted his earlier call to eliminate DOE. After being briefed on many vital functions of DOE, he no longer believed that it should be eliminated, Perry told the Senate Energy and Natural Resources Committee, according to The New York Times.

During a stop in Hardin Valley on Monday afternoon, Perry acknowledged he’s learned a lot since the 2012 campaign, including in his visit to Oak Ridge and at DOE headquarters in Washington, D.C., and in trips to Idaho National Laboratory and the Waste Isolation Pilot Plant in southeast New Mexico.

He suggested he might not be the only one unaware of some of the innovations that have roots in or are developed in places like Oak Ridge, innovations like gene therapy, supercomputing, and 3D printing. The American public may also not be aware of how that “cutting-edge” technology can be used to create jobs and wealth, Perry said.

“Those are things I readily admit I didn’t know five years ago,” Perry said after operating a 3D-printed excavator and test-driving a printed utility vehicle—and learning about other innovations such as supercomputers at Oak Ridge National Laboratory and composite work at its Manufacturing Demonstration Facility in Hardin Valley on Monday afternoon. “There are a lot of things that have surprised me.” [Read more…]