National Nuclear Security Administration Archives - Page 5 of 26

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

Posted at 2:10 am May 14, 2019
By John Huotari 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…]

DOE updating security order after intelligence reports about drone threats

Posted at 6:40 pm May 4, 2019
By John Huotari Leave a Comment

A drone is pictured above. (Photo courtesy Federal Aviation Administration)

The U.S. Department of Energy is updating a classified security order that will reflect recent intelligence assessments about the threats posed by unmanned aerial systems, or drones, as some federal officials express concerns that terrorists could use drones to harm the United States.

That information is included in a report issued by the DOE Inspector General, or IG, in April.

While developing the report, the IG reviewed controls in place at the Y-12 National Security Complex and Idaho National Laboratory. The IG found that the National Nuclear Security Administration, including Y-12, has been proactive in establishing “limited internal controls” that include observing and reporting unmanned aerial systems, as well as using deadly force if hostile intent is determined.

The IG said drones are becoming increasingly popular, and some unmanned aerial systems that are commercially available and relatively affordable have high-definition cameras, auto pilot global positioning system navigation, and the ability to carry and remotely release payloads.

[Read more…]

Final notice: New class of Y-12 workers added to compensation program

Posted at 5:50 pm April 12, 2019
By John Huotari 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)

A new class of workers at the Y-12 National Security Complex has been added to a federal energy employees compensation program that was established about two decades ago, officials announced Thursday.

The affected employees would have worked at Y-12 between January 1, 1958, and December 31, 1976. They would have been employees of the U.S. Department of Energy, its predecessor agencies, or their contractors and subcontractors. They would have had an aggregate of at least 250 work days. That could have occurred either only through this employment or in combination with work days that meet the parameters established for one or more other classes of employees in what is known as the Special Exposure Cohort.

The notice that the new class of employees has been added to the Special Exposure Cohort was published in the Federal Register by the Centers for Disease Control and Prevention on Thursday. Oak Ridge Today reported in December that the class was being evaluated, based on exposure to radiation from thorium metal parts and plutonium-241 isotopes, and reported in March that the U.S. Department of Health and Human Services had designated the class of employees to be added. The new designation became effective March 28.

[Read more…]

Unique partnership helps Y-12 employee Chris Borum pursue a new path

Posted at 2:00 pm March 21, 2019
By Owen Driskill Leave a Comment

Chris Borum

By Bob Fowler, Roane State staff writer

Chris Borum, for more than 16 years a security guard at the Y-12 National Security Complex in Oak Ridge, said it was time for a change.

As the years passed, he worried he might not be able to meet rigorous annual physical qualifications for his job at the nuclear weapons facility.

Borum, a Kingston resident, said he wanted to stay at Y-12 and eventually retire from there, “but I wanted to leave on my own terms.”

So when a job posting for a material handler was posted on the Y-12’s Intranet, he went for it. [Read more…]

Y-12, Pantex give more than $1 million to United Way

Posted at 1:42 pm February 13, 2019
By Oak Ridge Today Staff 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)

Contributions to the United Way from the Y-12 National Security Complex in Oak Ridge and Pantex Plant in Amarillo, Texas, topped $1 million in 2018. The donations were collected from employees and retirees, according to Consolidated Nuclear Security LLC, which manages and operates the two sites.

The sites engaged in year-long campaigns to generate money for the United Way, raising funds through silent auctions and various jewelry, book, and food sales at the sites as well as employee contributions, CNS said in a press release. A $150,000 donation from the parent companies of CNS was also included in the total.

“One of the best ways to help our local communities is through the United Way,” Y-12 Site Manager Bill Tindal said. “Y-12 and East Tennessee are special places because of the commitment of our employees to giving back to our neighbors.” [Read more…]

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

Posted at 12:12 pm February 13, 2019
By John Huotari Leave a Comment

Watts Bar Nuclear Power 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.

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(For members) DOE could lease space to store elemental mercury

Posted at 1:52 pm February 11, 2019
By John Huotari Leave a Comment

Image from “Final Long-Term Management and Storage of Elemental Mercury Supplemental Environmental Impact Statement” published by U.S. Department of Energy in September 2013.

The U.S. Department of Energy is considering whether to lease space to store elemental mercury from sites across the country.

The facility could store about 1,200 metric tons (1,300 tons) of elemental mercury. The waste has been generated at sites in the United States, mostly at gold mining operations, according to the DOE Office of Environmental Management.

The mercury that could be stored at the leased facility is separate from the 1,200 metric tons of mercury stored at the Y-12 National Security Complex in Oak Ridge. The Y-12 mercury, about 2.6 million pounds stored in seamless steel flasks, was acquired for lithium-6 isotope separation operations for thermonuclear weapons.

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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)

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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Ten-year costs of nuclear forces estimated at $494 billion

Posted at 4:04 pm January 26, 2019
By John Huotari 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)

U.S. nuclear forces could cost about $494 billion during a 10-year period if current plans are followed, according to the nonpartisan Congressional Budget Office.

The CBO is required by law to estimate the 10-year costs every two years. The new estimate is $494 billion for work between 2019 to 2028, the CBO said in a report published this month. That’s an average of just under $50 billion a year.

The Y-12 National Security Complex in Oak Ridge participates in the nuclear weapons work along with other U.S. Department of Energy sites and the U.S. Department of Defense.

The CBO said nuclear weapons have been an important part of U.S. national security since they were developed during World War II. Oak Ridge was the main production site for the top-secret project to build those first weapons, and Y-12 continues to work on nuclear weapons. One modernization program for the W76-1 warhead was recently completed, and another for the B61-12 bomb has started.

The CBO said nuclear forces were central to U.S. defense policy during the Cold War, and a large arsenal was built. [Read more…]

Y-12: Work complete on W76-1 warhead program

Posted at 11:23 pm January 21, 2019
By John Huotari Leave a Comment

Photo from National Nuclear Security Administration fact sheet on the W76-1 Life Extension Program.

Note This story was updated at 4:40 p.m. Jan. 26.

After two decades, work was completed in December on a program to extend the life of the W76 nuclear warhead, the Y-12 National Security Complex said on Monday.

That ended a decade of work to extend the service life of the original warhead design by 40 years, Y-12 said.

“This warhead plays a vital role in maintaining the nation’s credible nuclear deterrent,” said Consolidated Nuclear Security LLC, which manages and operates Y-12 for the National Nuclear Security Administration.

The Life Extension Program, or LEP, is for the W76-1 warhead. The W76-1 is a refurbished W76-0 warhead. The W76-0 warhead is a submarine-launched ballistic missile system that was first introduced into the stockpile for the U.S. Navy in 1978. The warhead is deployed with Trident II D5 missiles on Ohio-class nuclear ballistic missile submarines. [Read more…]

Y-12 finishes first production unit for B61-12 bomb

Posted at 5:43 pm January 21, 2019
By John Huotari Leave a Comment

Employees at Y-12 National Security Complex recently completed the first production unit of the B61-12. This refurbishment will extend the life of this strategic weapon for 20 years. (Submitted photo)

Note: This story was last updated at 9:45 a.m. Jan. 22.

Canned subassembly certified four months ahead of schedule

The Y-12 National Security Complex on Monday said it has completed a major milestone in efforts to refurbish components for a strategic nuclear weapons system that is vital to the U.S. nuclear deterrent.

The first production unit for a bomb called the B61-12 was certified at Y-12 on December 6, 2018.

The work is part of the B61 Life Extension Program, or LEP. The B61 is a nuclear bomb that can be carried on several types of military aircraft. The B61 LEP will extend the life of this strategic weapon for 20 years, said Consolidated Nuclear Security LLC, which manages and operates Y-12 for the National Nuclear Security Administration.

B61 bombs are the oldest nuclear weapons in the nation’s active stockpile. They have been in service almost 50 years, and critical components of the bombs are reaching the end of their operational lives. The B61 was first “fielded” in 1968, and current modifications were fielded between 1979 and 1991, according to the U.S. Government Accountability Office. [Read more…]

Y-12 criticality alarms function properly in tests

Posted at 2:26 pm January 7, 2019
By John Huotari Leave a Comment

Nuclear Materials Corporation GA-6 Radiation Detector (Photo courtesy CNS Y-12)

Alarms designed to detect a nuclear criticality accident at the Y-12 National Security Complex have been tested, and the systems functioned appropriately and as required, the plant said in November.

Y-12 has had a criticality accident alarm system since 1945. A criticality accident would occur if there were an uncontrolled nuclear chain reaction. It could result in the release of radiation and significant exposures to nearby workers if the area were not immediately evacuated. It’s something that the plant takes steps to avoid. The alarms are designed to alert workers if there is an accident.

A nuclear criticality alarm at the 811-acre plant, which works on nuclear weapons components and stores highly enriched uranium, has been given credit for helping to save lives in a nuclear criticality accident in 1958. In that case, which was the first process criticality accident in the United States, Y-12 employees immediately evacuated when they heard the alarm.

A report published by Consolidated Nuclear Security, a federal contractor, said the basic design and electronic configuration of the older criticality alarm system installed in Y-12’s existing facilities, with the exception of the Highly Enriched Uranium Materials Facility, date back to 1957. The legacy system has received many upgrades since installation, and detector stations have been removed and relocated as enriched uranium operations have evolved, said the report, titled “Qualification of Y-12 Legacy Criticality Accident Alarm System Detectors.” [Read more…]

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