Oak Ridge Today

ORNL study advances quest for better superconducting materials

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Superconductivity Pan Defects

Minghu Pan’s image of “clover-like” atomic defects—an example is circled—that result in strong superconductivity. (Photo courtesy ORNL)

Nearly 30 years after the discovery of high-temperature superconductivity, many questions remain, but an Oak Ridge National Laboratory team is providing insight that could lead to better superconductors.

Their work, published in Physical Review Letters, examines the role of chemical dopants, which are essential to creating high-temperature superconductors—materials that conduct electricity without resistance. The role of dopants in superconductors is particularly mysterious as they introduce non-uniformity and disorder into the crystal structure, which increases resistivity in non-superconducting materials.

By gaining a better understanding of how and why chemical dopants alter the behavior of the original (parent) material, scientists believe they can design superconductors that work at higher temperatures. This would make them more practical for real-world wire applications because it would lessen the extreme cooling required for conventional superconducting material. Existing “high-temperature superconductors” operate at temperatures in the range of negative 135 degrees Celsius and below. [Read more…]

Y-12 sentencing hearing delayed due to snow

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Y-12 Sentencing Hearing

Snow delayed the Tuesday afternoon sentencing for the three anti-nuclear weapons activists who cut through fences and vandalized a uranium storage building at the Y-12 National Security Complex in July 2012. Above, supporters, attorneys, and reporters leave U.S. District Court in Knoxville.

KNOXVILLE—Snow delayed the Tuesday afternoon sentencing for the three anti-nuclear weapons activists who cut through fences and vandalized a uranium storage building at the Y-12 National Security Complex in July 2012.

The hearing could be moved to 9 a.m. Feb. 18. But there is also a possibility that U.S. District Judge Amul Thapar, who normally hears cases in the Eastern District of Kentucky, could resume the hearing on Wednesday.

The sentencing hearing for the three protesters—Greg Boertje-Obed, Megan Rice, and Michael Walli—was at the Howard H. Baker Jr. Courthouse in Knoxville, which closed early at 2:30 p.m. Tuesday because of the snow and driving conditions. [Read more…]

Y-12 protesters to be sentenced Tuesday morning

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Y-12 Plowshares Protesters

Pictured above are the three anti-nuclear weapons protesters who broke into the Y-12 National Security Complex on July 28, 2012. From left, they are Michael Walli, Megan Rice, and Greg Boertje-Obed.

The three protesters convicted on federal charges after sneaking into the Y-12 National Security Complex and splashing human blood and spray-painting slogans on a uranium storage building in July 2012 will be sentenced in U.S. District Court in Knoxville on Tuesday morning.

The sentencing hearing for the three anti-nuclear weapons activists—Greg Boertje-Obed, Megan Rice, and Michael R. Walli—is scheduled to begin at 9 a.m. Tuesday. The defendants will be sentenced individually after a joint hearing to hear witness testimony and objections to a pre-sentence report.

The government plans to call retired Brig. Gen. Rodney L. Johnson as a witness. He testified at the two-day trial in May, and he is the senior vice president and deputy general manager of security operations and emergency services at Y-12.

A Catholic nun, house painter, and laborer, Boertje-Obed, Rice, and Walli were convicted in May 2013 of destroying U.S. property and attempting to injure national defense premises. They acknowledged sneaking into Y-12 before dawn on July 28, 2012, and cutting through three fences in a high-security Protected Area before vandalizing the Highly Enriched Uranium Materials Facility, where most of the nation’s bomb-grade uranium is stored. But they said their unprecedented intrusion was peaceful, religiously motivated, and nonviolent, a symbolic disarming of Y-12. [Read more…]

Middle school students competing regionally for National Science Bowl finals

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Middle school students from Oak Ridge, Norris, and Oliver Springs are participating in an upcoming competition to determine what team will represent Tennessee in the middle school national finals of the U.S. Department of Energy Office of Science’s National Science Bowl.

The winner of the regional competition, scheduled for Feb. 1 at Roane State Community College in Oak Ridge, will receive an all-expenses-paid trip to Washington, D.C., to compete in the Office of Science’s National Science Bowl in late April.

The winner of the national competition will win prizes for the team members and their schools.

Here are the teams that are competing: [Read more…]

Spotlight: B&W Y-12 donates $2,500 to MMC Hospitality House

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B&W Y-12 Donates to MMC Hospitality House

B&W Y-12 Director of Public Affairs Bill Reis, right, hands a $2,500 donation to Mike Belbeck, Methodist Medical Center’s president and chief administrative officer. The funds will go toward MMC’s Hospitality Houses, which provide temporary lodging for patients and families who travel to Oak Ridge for extended medical treatment.

From Y-12 News Notes

Y-12 donates DVDs, teddy bears to Children’s Hospital

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B&W Y-12 Donate DVDs to East Tennessee Children's Hospital

AnnMarie Corbett, Lily Matthiessen, KelliAnn, Kevin, Emily and Victoria Corbett deliver DVDs to East Tennessee Children’s Hospital. More than 350 DVDs were collected at Y-12 for patients at the East Tennessee Children’s Hospital. (Photos courtesy B&W Y-12)

More than 350 DVDs and some 360 teddy bears were collected by Y-12 National Security Complex employees for patients at East Tennessee Children’s Hospital in Knoxville.

The DVDs were collected as part of the “DVDs for Joy” campaign, which is the brainchild of KelliAnn Corbett, daughter of B&W Y-12’s Kevin Corbett. KelliAnn and her sisters collected DVDs at some Oak Ridge schools last year, and they invited “Y-12ers” to join them this year. Kathi Hofstad, ETCH coordinator for volunteer services and programs, said the DVDs gathered have helped create a mobile library where families can check out movies to entertain them during their stay at the hospital. [Read more…]

Y-12’s history captured in short film

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Y-12 National Security Complex Aerial View

The Y-12 National Security Complex in Oak Ridge is pictured above.

Submitted

To close out the celebration of the 70th anniversary of the Y-12 National Security Complex, a short film capturing highlights of the site’s history is now available for viewing on the plant’s public website.

The 8:15 film covers the chronology of Y-12 from its beginnings during World War II as an integral part of the Manhattan Project to its current missions for the National Nuclear Security Administration.

“Y-12 has experienced a rich history since its birth in 1943,” said Y-12 Historian Ray Smith. “And while we have played a huge role in national security by helping the United States maintain a nuclear deterrent, Y-12 has contributed to several other areas, such as space exploration and nuclear nonproliferation. The expertise and capabilities at Y-12 have truly made it a national asset.”

DOE-ORO employees teach Woodland students the fun of math, science

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DOE Environmental Management at Woodland STEM Night

Employees from the U.S. Department of Energy Oak Ridge Office of Environmental Management took part in Woodland Elementary’s Science, Technology, Engineering, and Math (STEM) night on Thursday. (Photos by DOE/Lynn Freeny)

Employees from the U.S. Department of Energy’s Oak Ridge Office of Environmental Management participated in Woodland Elementary’s Science, Technology, Engineering, and Math, or STEM, night on Thursday. Employees volunteered to help students from kindergarten through fourth grade forge a love for math and science and realize the possibilities these disciplines offer.

“It’s rewarding any time you can participate in the education process,” said Jay Mullis, director of the Engineering, Safety, and Quality Division with DOE’s Oak Ridge Office of Environmental Management. “These kids are in the stage when learning is new and fun, and it’s the perfect opportunity to lay a great foundation and appreciation of the sciences.”

The event involved numerous local sponsors and community groups that helped design and share fun, educational activities for students at Woodland Elementary in Oak Ridge. Kids had the opportunity to learn through robots, Legos, gummy bear catapults, astronomy, spaghetti and marshmallow tower-building competitions, and math code busters. Specifically, Environmental Management employees taught participants how to create their own lava lamps. [Read more…]

DOE commits to three-year, $4.5 million groundwater study in Oak Ridge

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Daniel Goode and SSAB Groundwater Strategy Presentation

Daniel J. Goode, a research hydrologist for the U.S. Geological Survey, briefs members of the Oak Ridge Site Specific Advisory Board on a new groundwater strategy for the Oak Ridge Reservation.

The U.S. Department of Energy has agreed to spend $4.5 million during the next three years to study groundwater contamination on the Oak Ridge Reservation.

The reservation includes three federal sites—East Tennessee Technology Park, Oak Ridge National Laboratory, and Y-12 National Security Complex—that have been involved in missions ranging from scientific research to uranium enrichment to nuclear weapons work. That work has sometimes included the use of hazardous substances such as mercury and technetium-99, a slow-decaying radioactive metal.

The $4.5 million in funding will help implement a new groundwater strategy developed by DOE with help from the Tennessee Department of Environment and Conservation and the U.S. Environmental Protection Agency.

The strategy, which was presented to the Oak Ridge Site Specific Advisory Board in November, will help guide future cleanup decisions, said Sue Cange, deputy manager for environmental management in DOE’s Oak Ridge Office. [Read more…]

Knoxville man dies in crash on Bethel Valley Road

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A Knoxville man died in a Wednesday night crash on Bethel Valley Road east of Spallation Drive at Oak Ridge National Laboratory, authorities said.

John Kirkpatrick was driving eastbound in a 2001 Honda CRV when it apparently went off the south side of Bethel Valley Road and hit a tree, the Oak Ridge Police Department said after an initial investigation. Kirkpatrick was the vehicle’s only occupant, and he was found dead at the scene, a press release said. [Read more…]

Federal spending bill includes money for Y-12 water plant, reduces UPF spending

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Y-12 Water Treatment Plant Announcement

In May 2013, state and federal officials announce a plant to treat mercury-contaminated water at the Y-12 National Security Complex. Pictured from left are Mark Whitney, Robert Martineau, Lamar Alexander, Dave Huizenga, and Stan Meiburg.

The $1 trillion federal spending bill passed by Congress last week provides money for a water treatment plant that would help reduce mercury contamination in Oak Ridge, and it includes less money for the Uranium Processing Facility than President Obama had requested, Sen. Lamar Alexander said Thursday.

The U.S. Senate approved the spending bill in a 72-26 vote after the House passed it 359-67. Alexander and Rep. Chuck Fleischmann voted for it, while Sen. Bob Corker voted against it. All are Tennessee Republicans, and Fleischmann’s district includes Oak Ridge.

Alexander said the spending bill provides $16 million less than Obama had requested in his budget for the UPF, a multi-billion-dollar building that would replace old buildings at the Y-12 National Security Complex as part of a years-long effort to update the 811-acre site, consolidate operations, and cut the plant’s high-security “footprint” from 150 acres to 15. [Read more…]

Federal agents investigate DOE subcontractor based in Oliver Springs

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Federal Agents at TOPS in Oliver Springs

On Thursday, federal agents investigate the Oliver Springs offices of TOPS, a U.S. Department of Energy subcontractor.

Note: This story was updated at 9:45 a.m. Jan. 17.

OLIVER SPRINGS—A federal subcontractor that works at U.S. Department of Energy sites in Oak Ridge is under investigation by several federal agencies, including the FBI, IRS, and DOE Office of Inspector General.

Federal agents were at the Oliver Springs headquarters of the contractor, TOPS, on Thursday, but officials would not comment on the investigation. The office is on Winter Gap Road, next to Highway 62 just north of downtown Oliver Springs.

Dennis Holenstein at the IRS’ Nashville Field Office confirmed that agents from IRS Criminal Investigations were assisting with the investigation, but he referred a reporter to the DOE Office of Inspector General. The IG, in turn, referred calls to the U.S. Attorney’s Office in the Eastern District of Tennessee. The U.S. Attorney’s Office said its policy is to neither comment on, nor confirm or deny, the existence or status of a pending investigation.

[Read more…]