Oak Ridge Today

Y-12 supporting work to make most widely used medical isotope

Posted at
By Leave a Comment

Pictured above is a rendering of the proposed Coquí Radio Pharmaceuticals Corporation medical isotope production facility at the Heritage Center in west Oak Ridge. (Image courtesy Coquí)

Note: This story was updated at 5:30 p.m.

The Y-12 National Security Complex in Oak Ridge is supporting a program to make an isotope used in more than 40,000 medical procedures across the nation each day. The goal is to produce the isotope, molybdenum-99 (Mo-99), in the United States without using highly enriched uranium.

Some of that work could occur in Oak Ridge. A company called Coquí Radio Pharmaceuticals Corporation announced in April that it plans to build a $500 million medical isotope production facility at the Heritage Center in west Oak Ridge. Coquí’s facility would make medical isotopes, primarily Mo-99, and the company could start production in 2025.

In a video posted online, Y-12 said some of its researchers have extensive knowledge of Mo-99 and are sharing that information with Coquí and other companies hoping to produce the isotope.

Y-12 has been involved with Mo-99 since 2009, said Cole Jackson of Y-12 Global Security and Strategic Partnerships.

[Read more…]

Highly enriched uranium from UK brought to Y-12 for secure storage

Posted at
By Leave a Comment

The Y-12 National Security Complex is pictured above. (Photo courtesy CNS Y-12)

Note: This story was updated at 9:15 a.m.

Almost 700 kilograms of highly enriched uranium has been moved from the United Kingdom to the United States, and the material is being securely stored at the Y-12 National Security Complex in Oak Ridge for now, federal officials said.

The National Nuclear Security Administration said this month that the highly enriched uranium, or HEU, will be down-blended later into low enriched uranium for use as nuclear reactor fuel.

“The material was returned to Y-12 for secure storage awaiting future disposition,” the NNSA said in a statement provided Friday by Steven Wyatt of the NNSA Production Office in Oak Ridge.

Wyatt said Y-12 supported the removal effort, which was announced by the NNSA on May 3, through technical oversight and guidance of the processing and packaging of material.

[Read more…]

(For members) NRC finds no significant impact from producing tritium at Watts Bar 2

Posted at
By Leave a Comment

Watts Bar Nuclear Plant

Watts Bar Nuclear Power Plant

Watts Bar Nuclear Plant

The U.S. Nuclear Regulatory Commission announced on Monday that there would be no significant impact from producing tritium for nuclear weapons in a second unit at the Watts Bar Nuclear Power Plant in Rhea County.

The project involves the Y-12 National Security Complex in Oak Ridge.

The tritium could be produced in Unit 2 at Watts Bar, which is near Spring City about 45 miles southwest of Oak Ridge.

Tritium, which boosts the yields of nuclear weapons, is already being produced in Watts Bar Unit 1. The Tennessee Valley Authority has been producing tritium there since 2003.

The rest of this story, which you will find only on Oak Ridge Today, is available if you are a member: a subscriber, advertiser, or recent contributor to Oak Ridge Today. 

Already a member? Great! Thank you! Sign in here.

Not a member? No problem! Subscribe here:

Basic

Pro

Temporary

If you prefer to send a check, you may do so by mailing one to:

Oak Ridge Today
P.O. Box 6064
Oak Ridge, TN 37831

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.

Twenty tons of uranium could be used to produce tritium for nuclear weapons

Posted at
By Leave a Comment

Image courtesy NNSA

Image courtesy National Nuclear Security Administration. SRS is the Savannah River Site.

 

About 20 metric tons of highly enriched uranium could be “down-blended” to low-enriched uranium and transferred to the Tennessee Valley Authority for use as a fuel to produce tritium for nuclear weapons, according to a public notice published in the Federal Register this week.

The project involves the Y-12 National Security Complex in Oak Ridge and Watts Bar Nuclear Plant near Spring City in Rhea County, among other sites.

The National Nuclear Security Administration and TVA announced in August that they intend to enter into an agreement to “down-blend” highly enriched uranium to low-enriched uranium in order to help produce tritium, a key “boosting” component in nuclear weapons.

The highly enriched uranium used for the “down-blending” will be processed, packaged, and shipped from Y-12, according to the NNSA. Y-12 is an NNSA site, and it is the main storage facility for certain categories of highly enriched uranium. [Read more…]

NNSA, TVA agree to ‘down-blend’ uranium to produce tritium for weapons

Posted at
By Leave a Comment

The sign at the main entrance to the Y-12 National Security Complex is pictured above on Sunday, Aug. 6, 2017. (Photo by John Huotari/Oak Ridge Today)

The National Nuclear Security Administration and the Tennessee Valley Authority announced Wednesday, Aug. 22, 2018, that they intend to enter into an agreement to “down-blend” highly enriched uranium to low-enriched uranium in order to help produce tritium, a key “boosting” component in nuclear weapons. The highly enriched uranium used for the “down-blending” is processed, packaged, and shipped from the Y-12 National Security Complex in Oak Ridge. (File photo by John Huotari/Oak Ridge Today)

The sign at the main entrance to the Y-12 National Security Complex is pictured above on Sunday, Aug. 6, 2017. (Photo by John Huotari/Oak Ridge Today)

The National Nuclear Security Administration and the Tennessee Valley Authority announced Wednesday, Aug. 22, 2018, that they intend to enter into an agreement to “down-blend” highly enriched uranium to low-enriched uranium in order to help produce tritium, a key “boosting” component in nuclear weapons. The highly enriched uranium used for the “down-blending” is processed, packaged, and shipped from the Y-12 National Security Complex in Oak Ridge. (File photo by John Huotari/Oak Ridge Today)

 

The National Nuclear Security Administration and the Tennessee Valley Authority announced last week that they intend to enter into an agreement to “down-blend” highly enriched uranium to low-enriched uranium in order to help produce tritium, a key “boosting” component in nuclear weapons.

The highly enriched uranium used for the “down-blending” is processed, packaged, and shipped from the Y-12 National Security Complex in Oak Ridge, according to the NNSA. Y-12 is the main storage facility for certain categories of highly enriched uranium, which can be used in nuclear weapons and in naval reactors.

Low-enriched uranium, or LEU fuel, is used in a commercial power reactor run by TVA at the Watts Bar Nuclear Plant Unit 1 near Spring City in Rhea County, southwest of Oak Ridge. Tritium is produced there by irradiating lithium-aluminate pellets with neutrons in rods known as tritium-producing burnable absorber rods, or TPBARs.

The irradiated rods are then shipped to the Savannah River Site, an NNSA production facility near Aiken, South Carolina. The Savannah River Site extracts the tritium from the irradiated rods, purifies it, and adds it to the existing inventory, according to the NNSA’s Fiscal Year 2018 Stockpile Stewardship and Management Plan.

Tritium is a radioactive isotope of hydrogen that has two neutrons and one proton. It has been described as an essential component in every nuclear weapon in the U.S. stockpile. It occurs naturally in small quantities but must be manufactured to obtain useful quantities. It enables weapons to produce a larger yield while reducing the overall size and weight of the warhead in a process known as “boosting,” the U.S. Department of Energy said in an environmental impact statement about 20 years ago.

But unlike other nuclear materials used in nuclear weapons, tritium decays at a rate of 5.5 percent per year—its half-life is about 12 years—and it must be replenished periodically.

The NNSA, a separately organized agency within DOE, said the agreement with TVA that was announced last week is for management of the down-blending campaign and the resulting material. It’s separate from an existing interagency agreement for irradiation services that started in 2000 and is in effect until November 30, 2035.

“Without this down-blending campaign, we would need to accelerate the development and execution of a strategy to provide LEU fuel for tritium production by nearly a decade,” said Phil Calbos, NNSA’s acting deputy administrator for defense programs.

The new agreement follows a determination by U.S. Energy Secretary Rick Perry on August 21 that allows the NNSA to continue transfers of enriched uranium from DOE’s inventories in support of national security, the NNSA said in a press release.

The rest of this story, which you will find only on Oak Ridge Today, is available if you are a member: a subscriber, advertiser, or recent contributor to Oak Ridge Today. 

Already a member? Great! Thank you! Sign in here.

Not a member? No problem! Subscribe here:

Please let us know if you advertise on Oak Ridge Today, have recently contributed, or subscribe through PayPal or check payments, but you have not yet been added to our website as a member. You can send an email to [email protected] to be added. Thank you!

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.

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

Posted at
By 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…]

Y-12 helps NNSA, others eliminate weapons-grade uranium from Indonesia

Posted at
By Leave a Comment

Anne Harrington

Anne Harrington

The Y-12 National Security Complex in Oak Ridge has helped the National Nuclear Security Administration and other agencies eliminate weapons-grade nuclear material from Indonesia, a press release said.

The material was eliminated by “down-blending” highly enriched uranium, or HEU, to low enriched uranium, or LEU. Unlike HEU, LEU cannot be used to make an improvised nuclear device, a press release said.

The work to eliminate the HEU from Indonesia was done through a collaboration between the U.S. Department of Energy’s National Nuclear Security Administration, or DOE/NNSA; Indonesian Nuclear Industry LLC, or PT INUKI; the National Nuclear Energy Agency, or BATAN; and the Nuclear Energy Regulatory Agency, or BAPETEN, of the Republic of Indonesia.

Indonesia is the 30th country plus Taiwan to be declared free of HEU. That’s defined as possessing less than one kilogram of HEU in a country. Indonesia joins fellow Southeast Asian countries Thailand, Vietnam, and the Philippines in working with DOE/NNSA to eliminate all of its weapon-usable nuclear material, an NNSA press release said.

“With this most recent milestone, the entire region of Southeast Asia is now free of HEU,” the press release said. [Read more…]

Y-12 fulfills major milestone in fuel conversion commitment for Jamaican research reactor

Posted at
By Leave a Comment

Y-12 National Security Complex Aerial View

The Y-12 National Security Complex in Oak Ridge is pictured above. (Photo courtesy B&W Y-12)

The Y-12 National Security Complex recently fulfilled its commitment to provide low-enriched uranium, or LEU, as feedstock to fuel the “Safe LOW-POwer Kritical Experiment” (SLOWPOKE) research reactor in Kingston, Jamaica.

“Our role is to produce the uranium dioxide feedstock and to manage fabrication of LEU fuel pins for the reactor core to enable conversion from highly enriched uranium, or HEU, to LEU,” said John Creasy of Y‑12’s Nuclear Nonproliferation and Global Security Programs.

The new pins, made of low enriched uranium dioxide powder, will replace those made with weapons-useable HEU, thus making the reactor fuel less desirable to terrorists. Y-12 has a long history of supporting the U.S. Department of Energy’s nuclear nonproliferation activities throughout the world. This project is just one of several HEU-to-LEU conversion efforts in which Y-12 has participated in support of the Department’s Global Threat Reduction Initiative, or GTRI.

The last shipment of uranium dioxide feedstock was shipped last month to Atomic Energy of Canada Limited, where it will be fabricated into fuel pins. AECL was selected because it designed the original SLOWPOKE reactor. [Read more…]

NNSA marks 10th anniversary of Global Threat Reduction Initiative

Posted at
By Leave a Comment

Frank Klotz

Frank Klotz

WASHINGTON, D.C.—The National Nuclear Security Administration on Thursday marked the 10th anniversary of the Global Threat Reduction Initiative, GTRI. Since the Sept. 11 attacks, reducing the threat of terrorist acquisition of nuclear or radiological material has been a core mission of NNSA, and it is a mission that will continue into the future.

“The Global Threat Reduction Initiative’s history demonstrates how seriously we take this mission and our commitment to fulfilling President Obama’s nuclear security agenda,” said U.S. Department of Energy Under Secretary for Nuclear Security and NNSA Administrator Frank G. Klotz. “However, the threat to national and global security from state or terrorist acquisition of nuclear and radiological materials is far from gone, and our focus now is on addressing the substantial threats that remain.”

GTRI, an NNSA nuclear nonproliferation program, works with partners around the world to reduce and consolidate global stockpiles of highly enriched uranium, or HEU, and plutonium, and to secure dangerous radiological sources both at home and abroad. GTRI and its predecessor programs have removed and secured more than enough material for 980 nuclear weapons and tens of thousands of radiological dirty bombs by converting HEU research reactors and isotope production facilities to the use of low enriched uranium, or LEU; removing or confirming disposition of HEU and plutonium; and securing nuclear and radiological sites around the world. [Read more…]

NNSA celebrates five years of radiological alarm response training

Posted at
By Leave a Comment

Last week was the fifth anniversary of the U.S. Department of Energy’s National Nuclear Security Administration’s Alarm Response Training program for local law enforcement and other critical first responders around the country. In the five years of providing this course, NNSA has trained more than 3,000 on-site radiation safety and security personnel, local law enforcement officers, and other first responders on how to respond to a security incident involving nuclear or radiological materials, a press release said.

“One of the greatest threats to national and global security is the danger of nuclear and radiological terrorism, and the Alarm Response Training program directly addresses this threat,” said NNSA Deputy Administrator for Defense Nuclear Nonproliferation Anne Harrington. “We recognize that reducing the risk of radiological or nuclear terrorism requires a whole-of-community approach that brings together officials and responders from the federal, state, local, and facility levels. NNSA is able to utilize its unique expertise and technical resources to partner with local communities and other agencies to make our cities safer here and around the world.” [Read more…]

NNSA: 2013 a year of important accomplishments, improvements

Posted at
By Leave a Comment

WASHINGTON, D.C.—As 2014 begins, the National Nuclear Security Administration has released a list of some of its most important accomplishments and improvements during the past year. NNSA reached significant milestones in the areas of nonproliferation and counterterrorism, made a host of significant achievements through its work with the United States’ nuclear weapons stockpile, and saw improved operations throughout the complex.

“In 2013, even with a challenging budget situation, NNSA’s successes ensured that the United States’ nuclear weapons stockpile is safe, secure and effective; saved taxpayers millions of dollars; and supported emergency preparedness and the next generation of nuclear security workers,” said NNSA Acting Administrator Bruce Held. “Our people, both our government employees and the employees in our government-owned labs and plants, have done great work executing our mission and improving the way we do business.”

NNSA’s 2013 list highlights accomplishments in operations and at its sites, international partnerships to support nonproliferation and removals of dangerous materials, and emergency preparedness trainings and university programs. [Read more…]

Final milestone in U.S.-Russian partnership converting nuclear warheads into fuel

Posted at
By Leave a Comment

Ernest Moniz

Ernest Moniz

WASHINGTON, D.C.—Russia has converted 500 metric tons of highly enriched uranium—the equivalent of 20,000 nuclear warheads—and the resulting low enriched uranium, or LEU, has been delivered to the United States, fabricated into nuclear fuel, and used in nuclear power plants to generate nearly 10 percent of all U.S. electricity for the past 15 years, federal officials said.

That’s roughly half of all commercial nuclear energy produced domestically during that period, a U.S. Department of Energy press release said.

Energy Secretary Ernest Moniz announced the final LEU shipment on Thursday.

The LEU was derived from Russian weapons-origin highly enriched uranium, or HEU, under the 1993 U.S.-Russia HEU Purchase Agreement, commonly known as the Megatons to Megawatts Program, the press release said. [Read more…]