• About
    • About Us
    • What We Cover
  • Advertise
    • Advertise
    • Our Advertisers
  • Contact
  • Donate
  • Send News
  • Subscribe

Oak Ridge Today

  • Home
  • Sign in
  • News
    • Business
    • Community
    • Education
    • Government
    • Health
    • Police and Fire
    • U.S. Department of Energy
    • Weather
  • Sports
    • High School
    • Middle School
    • Recreation
    • Rowing
    • Youth
  • Entertainment
    • Arts
    • Dancing
    • Movies
    • Music
    • Television
    • Theater
  • Premium Content
  • Obituaries
  • Classifieds




NNSA signs $600 million contract to build its first exascale supercomputer

Posted at 12:48 pm August 13, 2019
By John Huotari Leave a Comment

Image courtesy Lawrence Livermore National Laboratory

The National Nuclear Security Administration has signed a $600 million contract with Cray Inc. to build the first exascale supercomputer for the NNSA at Lawrence Livermore National Laboratory in California.

It is one of three exascale systems to be built at U.S. Department of Energy or NNSA laboratories. The other two exascale machines will be at DOE laboratories: Aurora at Argonne National Laboratory near Chicago and Frontier at Oak Ridge National Laboratory.

ORNL currently has the most powerful supercomputer in the world, Summit, and LLNL has the second-fastest, Sierra. They are both petaflop systems. Summit is capable of 200 petaflops, or 200,000 trillion calculations per second.

All three of the new exascale supercomputers will be built by Cray using their Shasta architecture, Slingshot interconnect, and new system software platform, the NNSA said in a press release Tuesday.

An exascale computer will be able to solve calculations up to 50 times faster than today’s top supercomputers, exceeding a quintillion, or 1018, calculations per second. That’s a billion billion calculations per second.

[Read more…]

Filed Under: Front Page News, National Nuclear Security Administration, NNSA, Slider, Top Stories, U.S. Department of Energy Tagged With: Argonne National Laboratory, Aurora, Cray, DOE, El Capitan, exaflops, exascale supercomputer, Frontier, Intel, Lawrence Livermore National Laboratory, Lisa E. Gordon-Hagerty, National Nuclear Security Administration, NNSA, nuclear weapons stockpile, Oak Ridge National Laboratory, petaflops, Rick Perry, Sierra, summit, supercomputer, U.S. Department of Energy

Advertisement

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

Posted at 12:15 pm August 29, 2018
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)

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.

Advertisement

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:

  • Monthly subscription ($10 per month)
  • Yearly subscription ($100 per year)
  • Temporary access ($3 per week for two weeks)

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.

Filed Under: Federal, Government, National Nuclear Security Administration, NNSA, Premium Content, Slider, U.S. Department of Energy, Y-12 National Security Complex Tagged With: 2015 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons, Centrus Energy, DOE, down-blend, Federal Register, Fiscal Year 2018 Stockpile Stewardship and Management Plan, HEU, highly enriched uranium, LEU, LEU fuel, low enriched uranium, National Nuclear Security Administration, NNSA, Pacific Northwest National Laboratory, Phil Calbos, Rick Perry, Savannah River Site, Tennessee Valley Authority, TPBAR, tritium, tritium production, tritium-producing burnable absorber rods, TVA, U.S. Department of Energy, United States Government Accountability Office, uranium-235, USEC, Watts Bar Nuclear Plant, Watts Bar Nuclear Plant Unit 1, Y-12 National Security Complex

Advertisement

 

CNS begins managing, operating Pantex, Y-12

Posted at 1:10 am July 2, 2014
By Oak Ridge Today Staff Leave a Comment

Pantex Plant Aerial February 2008

The Pantex Plant near Amarillo, Texas, is pictured above. (Photo courtesy NNSA)

 

Two nuclear weapons facilities managed under one contract

Consolidated Nuclear Security LLC on Tuesday assumed full responsibility for managing and operating the Pantex Plant in Amarillo, Texas, and Y-12 National Security Complex in Oak Ridge. The two nuclear weapons facilities perform missions vital to national security, CNS said in a press release.

The National Nuclear Security Administration awarded CNS the contract to consolidate the two facilities under a single contract. During a four-month transition that began March 3, the CNS team prepared to integrate and operate both facilities to deliver their critical missions with safety, security, quality, and cost efficiency, the press release said.

During the course of transition, CNS completed more than 3,000 scheduled actions, brought on board 7,800 employees, inspected more than 400 facilities, reviewed and approved more than 5,000 procedures, consulted with dozens of community leaders and elected officials, and established the structure and processes for managing the two sites as one enterprise, the release said. Transition activities were completed on schedule and under budget. [Read more…]

Filed Under: National Nuclear Security Administration, NNSA, Slider, Top Stories, U.S. Department of Energy, Y-12 National Security Complex Tagged With: ATK Launch Systems Inc., Bechtel National Inc., Booz Allen Hamilton Inc., CNS, consolidated contract, Consolidated Nuclear Security LLC, Jim Haynes, Lockheed Martin Services Inc., National Nuclear Security Administration, NNSA, nuclear weapons, Pantex Plant, SOC LLC, U.S. nuclear security enterprise, Y-12 National Security Complex

NNSA dedicates nation’s largest federal wind farm

Posted at 7:28 pm June 18, 2014
By Oak Ridge Today Staff Leave a Comment

Pantex Wind Farm

The National Nuclear Security Administration dedicated the nation’s largest federally owned wind farm on Tuesday at the Pantex Plant near Amarillo, Texas. The NNSA also oversees work at the Y-12 National Security Complex in Oak Ridge. (Photos courtesy NNSA)

 

Pantex wind farm complete

Retired Lt. Gen. Frank G. Klotz, the new administrator for the National Nuclear Security Administration, dedicated the nation’s largest federally owned wind farm Tuesday at the Pantex Plant near Amarillo, Texas.

Klotz, who is also the U.S. Department of Energy’s under secretary for nuclear security, was joined at the ceremony by Kevin Knobloch, DOE’s chief of staff; NNSA Production Office (NPO) Manager Steven Erhart; Siemens Government Technologies President and Chief Executive Officer Judy Marksl and Texas Tech University Associate Vice Chancellor Russell Thomasson.

The mission of the NPO is to ensure the safe, secure, and cost-effective operation of the Pantex Plant and the Y-12 National Security Complex in Oak Ridge.

The NNSA said Pantex will now be powered largely by the Pantex Renewable Energy Project, or PREP, an 11.5-megawatt, five-turbine wind farm that has been under construction since August on 1,500 acres of DOE-owned land adjacent to the Pantex Plant. [Read more…]

Filed Under: National Nuclear Security Administration, NNSA, Slider, Top Stories, U.S. Department of Energy Tagged With: CO2 emissions, DOE, electricity, energy research center, energy savings, Energy Savings Performance Contract, Environmental Protection Agency, Frank Klotz, Judy Marks, Kevin Knobloch, National Nuclear Security Administration, National Wind Institute, NNSA, NNSA Production Office, NPO, Pantex Plant, Pantex Renewable Energy Project, PREP, Russell Thomasson, Siemens, Siemens Government Technologies, Steven Erhart, Texas Tech University, TTU, U.S. Department of Energy, wind energy, wind farm

Search Oak Ridge Today

Recent Posts

  • REAC/TS welcomes new team members: John Crapo, Josh Hayes and David Quillen
  • NASA Postdoctoral Program seeks early career and senior scientists for prestigious fellowships at its locations across the U.S.
  • ORAU names Brandon Criswell associate general counsel
  • Update on downtown Oak Ridge Tuesday
  • TVA has virtual open house for Clinch River Nuclear Site
  • Science and supercomputers at ORNL topic of Mar. 8 talk
  • First Presbyterian offers free meals & groceries on Mar. 10
  • Secret City Academy student charged with terrorism after alleged shooting, bomb threats
  • ORHS Masquers presents ‘Into the Woods’
  • Oak Ridge’s first girl Eagle Scout named a “Scout of the Year”

About Us

About Oak Ridge Today
What We Cover

How To

Advertise
Subscribe

Contact Us

Contact Oak Ridge Today

Copyright © 2022 Oak Ridge Today