Oak Ridge Today

Hearne joins ORNL as director of the Center for Nanophase Materials Sciences

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Sean Hearne (Photo by Oak Ridge National Laboratory)

Sean Hearne (Photo by Oak Ridge National Laboratory)

 

Oak Ridge National Laboratory has named Sean Hearne director of the Center for Nanophase Materials Sciences.

The center is a U.S. Department of Energy Office of Science User Facility that brings world-leading resources and capabilities to the nanoscience research community, a press release said. National and international researchers benefit from CNMS expertise in nanomaterials synthesis and nanofabrication to develop new materials, as well as from state-of-the-art imaging, characterization, and microscopy equipment used to explore material properties at the nanoscale, the press release said.

“I am very pleased and excited to add Sean to our team and look forward to continuing excellence in nanomaterial research and development under his leadership at CNMS,” said David Dean, associate laboratory director for Physical Sciences.

Hearne comes to Oak Ridge from Sandia National Laboratories, where he served as senior manager of the Ion Beam Facility and co-director of the Center for Integrated Nanotechnologies, a DOE Office of Science User Facility jointly operated by Sandia and Los Alamos National Laboratory. [Read more…]

Y-12 manufactured uranium core for space power experiment

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The Y-12 National Security Complex in Oak Ridge manufactured the uranium core piece for the KRUSTY experiment, which is testing a new power source that could provide safe, efficient energy for future robotic and human space exploration missions. (Photo courtesy NNSA)

The Y-12 National Security Complex in Oak Ridge manufactured the uranium core piece for the KRUSTY experiment, which tested a new nuclear power source that could provide safe, efficient energy for robotic and human space exploration missions. (Photo courtesy NNSA)

 

The Y-12 National Security Complex in Oak Ridge manufactured the uranium reactor core for a federal experiment that tested whether a nuclear energy source could provide power for space exploration.

“The full-power run showed that it may be feasible for NASA to use small fission reactors for deep space exploration and manned missions to the moon and Mars,” the National Nuclear Security Administration said in May.

The NNSA, which is part of the U.S. Department of Energy, worked with NASA (the National Aeronautics and Space Administration) on the project. It’s nicknamed KRUSTY, an acronym for Kilowatt Reactor Using Stirling Technology.

“In a joint venture with NASA last year, NNSA completed final design, fabrication, and full-power testing of a nuclear criticality experiment that can be used for a manned lunar or Mars space mission,” NNSA Administrator Lisa Gordon-Hagerty said in a post published on Twitter on Friday.

The uranium reactor core from Y-12 was delivered to the National Criticality Experiments Research Center at the Nevada National Security Site in the fall of 2017. [Read more…]

NNSA deploying systems to counter drones, including at Y-12

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The counter-unmanned aircraft system installed at Los Alamos National Laboratory in New Mexico to enforce the federally designated no-drone zone. (Photo courtesy National Nuclear Security Administration)

The counter-unmanned aircraft system installed at Los Alamos National Laboratory in New Mexico to enforce the federally designated no-drone zone. (Photo courtesy National Nuclear Security Administration)

 

The National Nuclear Security Administration is deploying systems that will counter drones at four sites that house special nuclear materials, including the Y-12 National Security Complex in Oak Ridge.

Deployed by the Office of Defense Nuclear Security, the systems are designed to mitigate any malicious aerial intruders at NNSA sites. They will have the capability to detect, identify, track, and intercept unsanctioned and suspicious drones, the NNSA said Monday.

One system has already been deployed at Los Alamos National Laboratory in New Mexico.

“We needed a system to counter threats ranging from on-site disruption by protestors to intelligence gathering, surveillance, and reconnaissance of NNSA sites, plants, and labs,” said Lewis Monroe III, director of security operations and programmatic planning. [Read more…]

Y-12 approved for B61-12 weapons work

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Image from U.S. Government Accountability Office report in May 2018 on B61-12 Nuclear Bomb.

Image from U.S. Government Accountability Office report in May 2018 on the B61-12 nuclear bomb.

 

Image from U.S. Government Accountability Office report in May 2018 on B61-12 Nuclear Bomb.

Image from U.S. Government Accountability Office report in May 2018 on the B61-12 nuclear bomb.

 

The Y-12 National Security Complex in Oak Ridge has been approved to produce a major component of a nuclear bomb known as the B61-12.

The approval was the final step to authorize the manufacturing and delivery of the first production unit of a component called the canned subassembly. It’s scheduled for March 2019, according to Y-12. A canned subassembly is the second stage of a modern thermonuclear weapon, and it is part of the nuclear explosives package.

The Y-12 work is part of the B61-12 Life Extension Program, which will consolidate four versions of the bomb into one. The bombs could be carried on B-2A bomber aircraft and F-15Es, several types of F-16s, and PA-200 fighters, and in the future, F-35s and B-21s.

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Y-12 part of extending life of nation’s oldest nuclear weapons

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Image from U.S. Government Accountability Office report in May 2018 on B61-12 Nuclear Bomb.

Image from U.S. Government Accountability Office report in May 2018 on B61-12 Nuclear Bomb.

 

The Y-12 National Security Complex in Oak Ridge is part of a program to extend the life of B61 bombs, the oldest nuclear weapons in the nation’s active stockpile, federal officials said.

The life extension program, or LEP, for the B61 bombs is the most complex and expensive since the U.S. Department of Energy began stockpile life extension activities in January 1996, according to the U.S. Government Accountability Office.

Critical components of the bombs are reaching the end of their operational lives, and the life extension program will result in a bomb known as B61-12. It will consolidate four versions of the bomb into one. The bombs could be carried on B-2A bomber aircraft and F-15E, F-16, F-35, and PA-200 fighters.

A GAO report described the role of six National Nuclear Security Administration sites and laboratories in the LEP. Besides Y-12, the NNSA sites are Kansas City National Security Campus in Missouri; Los Alamos National Laboratory in New Mexico; Pantex Plant in Amarillo, Texas; Sandia National Laboratories in Albuquerque, New Mexico; and Savannah River Site in Aiken, South Carolina.

Y-12 is designated as the production site for the secondary. All weapons in the U.S. nuclear stockpile are two-stage nuclear weapons, or thermonuclear weapons. The first stage, known as the primary, is a fission device that is the initial source of nuclear energy, the GAO said. The secondary, which is the second stage, is a nuclear stage physically separate from the primary. Together, the primary and secondary are referred to as the weapon’s nuclear explosive package, the GAO said. [Read more…]

James Peery to lead ORNL’s Global Security Directorate

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James Peery

James Peery

 

James Peery, who led critical national security programs at Sandia National Laboratories and held multiple leadership positions at Los Alamos National Laboratory before arriving at the U.S. Department of Energy’s Oak Ridge National Laboratory last year, has been named associate laboratory director of global security at ORNL, a press release said.

Peery succeeds Brent Park, who was recently confirmed as deputy administrator for defense nuclear nonproliferation at DOE’s National Nuclear Security Administration. Park has led the Global Security Directorate since July 2010.

“James will be responsible for ensuring that ORNL is applying its research strengths to the highest priorities for our nation’s security, and his more than two decades of experience in creating successful initiatives makes him well qualified to lead the Global Security Directorate staff in its compelling mission,” said ORNL Director Thomas Zacharia. [Read more…]

Y-12 to build replacement parts for nuclear warheads on submarine missiles

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A Trident II D5 missile test launch (Photo courtesy National Nuclear Security Administration)

A Trident II D5 missile test launch (Photo courtesy National Nuclear Security Administration)

 

The Y-12 National Security Complex in Oak Ridge has been approved to build parts for a system being replaced in the W88 nuclear warhead, which is deployed on submarine-launched missiles, according to the National Nuclear Security Administration.

The W88 has been a key part of the nation’s nuclear deterrent since it became part of the weapons stockpile in 1988, the NNSA said on its website Tuesday. But it needs maintenance.

The W88 Alteration (Alt) 370 program will replace the warhead’s Arming, Fuzing, and Firing, or AF&F, subsystem and address other aging issues to maintain its current state of readiness, the NNSA said.

Y-12 has been approved to build component parts for the W88 Alt 370 nearly two years ahead of schedule. [Read more…]

ORNL names director of artificial intelligence

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David Womble

David Womble

 

Oak Ridge National Laboratory has hired David Womble, a leader in high-performance computing and former executive at Sandia National Laboratories, to direct its artificial intelligence work.

Womble began as AI Program Director on October 30, a press release said. AI stands for artificial intelligence.

Womble’s responsibilities include guiding ORNL’s AI and machine learning strategy for high-performance computing, ensuring broad scientific impacts to the missions of the U.S. Department of Energy’s Office of Science, and providing long-range program planning and project leadership, the press release said.

“In more than three decades in computing, Womble has won two R&D100 awards and the Association for Computing Machinery’s Gordon Bell Prize, awarded each year ‘to recognize outstanding achievement in high-performance computing,'” the press release said. [Read more…]

China passes U.S. in number of top supercomputers; ORNL’s Titan drops to 5th

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The Titan supercomputer at Oak Ridge National Laboratory is pictured above. (Photo by ORNL/U.S. Department of Energy)

The Titan supercomputer at Oak Ridge National Laboratory is pictured above. (Photo by ORNL/U.S. Department of Energy)

 

China has passed the United States in the total number of top ranked supercomputers, and Titan at Oak Ridge National Laboratory has dropped from fourth to fifth on the TOP500 list of the world’s fastest supercomputers.

The TOP500 list is released twice a year, once in June and once in November. It is based on a benchmark test known as Linpack.

Titan at ORNL dropped from third to fourth in June, bumped from the number three spot by the upgraded Piz Daint, a Cray XC50 system installed at the Swiss National Supercomputing Centre. Titan is capable of 17.59 petaflops. A petaflop is one quadrillion calculations per second. That’s 1,000 trillion calculations per second. Piz Daint is capable of 19.59 petaflops.

That power is useful in scientific research. At ORNL, Titan is used for research in areas such as materials science, nuclear energy, combustion, and climate science. ORNL is a U.S. Department of Energy laboratory.

Titan slipped one more spot in this month’s list, from fourth to fifth. It was displaced by the upgraded Gyoukou supercomputer. That is a ZettaScaler-2.2 system capable of 19.14 petaflops and deployed at Japan’s Agency for Marine-Earth Science and Technology, the home of the Earth Simulator. [Read more…]

ORNL names chief scientist of Global Security Directorate

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James Peery

James Peery

 

James Peery, who has led critical national security programs at Sandia National Laboratories and Los Alamos National Laboratory, has been selected as the chief scientist of the Global Security Directorate at Oak Ridge National Laboratory.

“James brings more than two decades of experience in creating successful national security initiatives for the U.S. Department of Energy,” said Brent Park, associate laboratory director of global security at ORNL. “In particular, his leadership in cybersecurity, data analytics, and high-performance computing will enable him to lead the laboratory’s cybersecurity initiative for the electric grid and beyond.”

Next-generation cybersecurity for the electric grid is a multi-directorate, multi-program effort at ORNL that supports the DOE cybersecurity program for critical energy infrastructure, a press release said. The initiative aims to enable electric utilities and other components of the nation’s energy supply to defend against emerging and previously unseen cyberattacks.

Peery also will help ORNL researchers draw on the lab’s distinctive capabilities to develop scientific and technological solutions aligned with national security policies and strategies, the press release said. [Read more…]

NNSA marks 10th anniversary of Global Threat Reduction Initiative

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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: 2013 a year of important accomplishments, improvements

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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…]