Oak Ridge Today

For members: Construction planned for SNS power upgrade

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The Spallation Neutron Source at Oak Ridge National Laboratory reached its operational power design level by running a neutron production cycle at 1.4 megawatts, the lab said Tuesday, Nov. 27, 2018. (Photo courtesy ORNL)

Construction is planned in December for a project to upgrade proton power at the Spallation Neutron Source at Oak Ridge National Laboratory.

The construction could last about one year, and it will be limited to the buildout of what is known as the klystron gallery, ORNL said in June. The klystron gallery houses the radio-frequency systems that power the structures used to accelerate a negatively-charged hydrogen ion beam in the linear accelerator at SNS.


The Spallation Neutron Source at Oak Ridge National Laboratory reached its operational power design level by running a neutron production cycle at 1.4 megawatts, the lab said Tuesday, Nov. 27, 2018. (Photo courtesy ORNL)

 

Construction is planned in December for a project to upgrade proton power at the Spallation Neutron Source at Oak Ridge National Laboratory.

The construction could last about one year, and it will be limited to the buildout of what is known as the klystron gallery, ORNL said in June. The klystron gallery houses the radio-frequency systems that power the structures used to accelerate a negatively-charged hydrogen ion beam in the linear accelerator at SNS.

SNS generates neutrons for scientific research by propelling protons down a linear accelerator. When the protons collide with a liquid mercury target, they create a “spall” of neutrons that are sent down beam lines surrounded by research instruments.

The proton power upgrade will eventually double the power of the SNS proton beam from 1.4 megawatts to 2.8 megawatts. The current total estimated project cost is $245 million.

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

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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.

No injuries reported when furnace door blows open in lab reaction at Y-12

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No injuries were reported when a furnace door blew open during an “unexpected violent reaction” in a chemistry laboratory at the Y-12 National Security Complex in May.

The door of the muffle furnace blew open while it was heating samples in an analytical chemistry laboratory in Building 9995 on Thursday, May 30, the Defense Nuclear Facilities Safety Board said.

The muffle furnace was damaged, the DNFSB said. It is used to heat samples to high temperatures. The glass vials containing the samples shattered, and some were expelled from the muffle furnace into the work area, the safety board said in a June 7 report.

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For members: After leak, hydrogen fluoride operations resume at Y-12

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Y-12 Building 9212
A low-level aerial shot of Building 9212 at the Y-12 National Security Complex.

After a leak in April, hydrogen fluoride operations have resumed at the Y-12 National Security Complex.

The leak in a cylinder enclosure in Building 9212 in the production area on the west side of Y-12 was reported Thursday morning, April 4. An operational emergency was declared, and employees in the buildings in and around the 9212 processing complex were evacuated to other buildings in the production area.

Y-12 Building 9212

A low-level aerial shot of Building 9212 at the Y-12 National Security Complex.

 

After a leak in April, hydrogen fluoride operations have resumed at the Y-12 National Security Complex.

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

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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.

McDaniel completes Oak Ridge oral history project

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Keith McDaniel interviews Oak Ridge Historian Ray Smith at the Oak Ridge History Museum for the Center for Oak Ridge Oral History. (Submitted photo)

Filmmaker Keith McDaniel has completed a nine-year project to document the oral histories of about 400 current and former Oak Ridge residents, including those connected to the Manhattan Project during World War II.

The life stories were used to build a digital collection for the Oak Ridge Public Library’s Center for Oak Ridge Oral History, or COROH. McDaniel was part of the group that made plans for the COROH and, following the city’s receipt of an annual grant from the U.S. Department of Energy, took the contract for the documentary work.

“A lot of original Oak Ridgers were dying and getting older,” McDaniel said in a press release from Carson-Newman University. “We felt it was really important to collect their memories, to collect their stories.”

The one-on-one filmed interviews gave those connected to the Manhattan Project, and later to the city at large, the opportunity to share their life stories, the press release said.

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Learn more about Wheat during walk with ranger

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The Wheat community before the Manhattan Project during World War II in the area around what is now west Oak Ridge. (Photo submitted by National Park Service)

You can learn more about Wheat, a community that was here before the Manhattan Project, during a walk with a National Park Service ranger on Saturday, July 27.

The Manhattan Project National Historical Park will present the ranger-led walk starting at 10 a.m. July 27. The program is free, and it will start at Blair Road and the North Boundary Greenway.

“The walk will be about one-and-one-half miles, so wear comfortable walking shoes and bring water to drink,” a press release said. “Stops will include ‘downtown’ Wheat, George Jones Memorial Baptist Church, Roane College site, and the Crawford Cumberland Presbyterian Memorial. There will be stories about the development and significance of each site.”

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Landslide repair could cost $400,000

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It could cost an estimated $407,000 to repair the landslide near the Oak Ridge Water Treatment Plant on Pine Ridge, city officials said Friday.

The water plant is on a ridge top above the main entrance to the Y-12 National Security Complex on Bear Creek Road. The landslide occurred next to the access road to the water plant on Saturday night, February 23. It’s the only access road to the water plant. It allows operations and maintenance workers to get to the water plant and deliver materials, equipment, and chemicals.

Oak Ridge Public Works Director Shira McWaters said the city has been able to maintain access to the water plant using the inside lane of the access road and closing the outside lane, the one closest to the slide.

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ORNL glass shop makes equipment for researchers

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Oak Ridge National Laboratory has its own glass shop, where scientific glass blowers make custom orders for researchers for experiments and sometimes modify purchased products. ORNL Scientific Glassblower and Shop Manager Jason Craig has been blowing glass for almost 25 years. (Photo by Kate Trabalka)

When people think of glass blowing, they think of unique vases and colorful works of art made in places like Dollywood or Asheville. Not many people know that Oak Ridge has its very own scientific glass blowers working for the Oak Ridge National Laboratory.

ORNL has its own glass shop on site. Scientific Glassblower and Shop Manager Jason Craig has been blowing glass for almost 25 years.

According to Craig, ORNL has always had a glass shop. The glass shop now has been in its current building since 1955. There used to be 10 glass blowers at ORNL, and two or three at the Y-12 National Security Complex. Now Craig and Carlos Rodriguez-Flores are the two full-time glassblowers, with a retired glass blower who comes in part-time.

Craig started out as an artistic glass blower before transitioning to scientific glass blowing.

“Working in a (glass shop) at a research facility is much different than blowing glass in a production shop or for artistic glass blowing,” Craig said during an interview in the ORNL glass shop last week. “So, I guess my greatest challenge is just trying to…keep track of the customers and the jobs and ordering materials, inventory, and gas cylinders, and all that stuff…We’re basically running our own business here inside the laboratory.”

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Titan, once the world’s fastest computer, will be retired Aug. 1

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The Titan supercomputer at Oak Ridge National Laboratory debuted as the fastest computer in the world in 2012, and it remained in the top 10 for seven years, providing billions of core hours of total computing time to researchers from around the world. The system will be decommissioned on Aug. 1, 2019, and its data center space will be retrofitted for a new supercomputer, Frontier. (Photo by ORNL)

A supercomputer that was once the world’s fastest will be retired at Oak Ridge National Laboratory on August 1.

The supercomputer is a Cray XK7 machine called Titan. It is operated by the Oak Ridge Leadership Computing Facility. It’s a petaflop system capable of performing up to 27 quadrillion calculations per second.

Titan was the world’s fastest supercomputer in November 2012, but it was bumped to number two by Tianhe-2, a Chinese supercomputer in June 2013. Still, Titan continued to rank as one of the world’s top 10 fastest supercomputers from its debut at number one in 2012 until this June, when it dropped to number 12.

In June, ORNL said Titan, which has been operating for seven years, will be decommissioned on August 1 and disassembled for recycling. Titan will be removed to make room for a new, much more powerful supercomputer, Frontier. That will be an exascale system capable of 1.5 exaflops, or 1.5 quintillion calculations per second (a billion billion calculations per second). Frontier will be a $600 million Cray computer that is expected to be the world’s most powerful when it debuts in 2021.

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City repairing large landslide near access road to water plant

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Oak-Ridge-Water-Treatment-Plant-2009-1
The Oak Ridge Water Treatment Plant is pictured on Pine Ridge above the Y-12 National Security Complex. (Photo by City of Oak Ridge)

The city is repairing a large landslide that occurred next to the access road to the Oak Ridge water treatment plant on Pine Ridge above the Y-12 National Security Complex during the rainy month of February.

The landslide occurred on the night of February 23, Oak Ridge Public Works Director Shira McWaters told City Manager Mark Watson in a June 24 memo. The access road is the only access road to the city’s water plant, and it’s critical to being able to operate the water plant, McWaters said. The road allows operations and maintenance workers to get to the water plant and deliver materials, equipment, and chemicals.

Repairs were started immediately after the landslide to minimize the risk of more damage to the area and the potential to lose the only access road to the plant, McWaters said. She said work started in March and should be complete by the end of July.

The water plant provides water to both the City of Oak Ridge and to U.S. Department of Energy sites, including Y-12 and Oak Ridge National Laboratory. The plant is on a ridge at the southern entrance to central Oak Ridge above the main entrance to Y-12 at Bear Creek Road and Scarboro Road.

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Photos: July 4 fireworks

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The annual fireworks show was in Alvin K. Bissell Park in Oak Ridge on Thursday, July 4, 2019. (Photo by Julio Culiat)

The annual fireworks show was in Alvin K. Bissell Park in Oak Ridge on Thursday. The Oak Ridge Community Band performed before the fireworks.

Here are photos by Julio Culiat and D. Ray Smith.

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Reminder: Fireworks tonight in A.K. Bissell Park

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Fireworks at Alvin K. Bissell Park in Oak Ridge on July 4, 2017. (File photo by D. Ray Smith)

A reminder: The annual fireworks show in Oak Ridge is in Alvin K. Bissell Park tonight (Thursday, July 4).

The fireworks show is sponsored by the City of Oak Ridge to celebrate Independence Day.

Today’s fireworks are expected to begin after dark at about 9:45 p.m.

The Oak Ridge Community Band, now in its 75th year, will perform before the fireworks. The concert is free, but donations are accepted by the band to help cover the cost of equipment and other expenses, a press release said. The music is expected to begin at 7:30 p.m. WMYL 96.7 Merle FM will be live following the band performance and will broadcast the soundtrack for the fireworks display.

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For members: Man sentenced to 8 years in death of son in crash

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An Anderson County man was sentenced to eight years in prison when he pleaded guilty Friday, June 28, 2019, to vehicular homicide by intoxication after a crash in Oak Ridge that killed his three-year-old son on January 13, 2017. The defendant, Jason Robert Braden II, is pictured above at center in Anderson County Criminal Court on Friday, March 29, 2019. At left is defense attorney David Stuart, who represented Braden. (Photo by John Huotari/Oak Ridge Today)

An Anderson County man was sentenced to eight years in prison on Friday when he pleaded guilty to vehicular homicide by intoxication after a crash in Oak Ridge that killed his three-year-old son in January 2017.

The man told police that he had injected roxycodone about six to eight hours before the crash and was driving to Methodist Medical Center of Oak Ridge with a man who had overdosed at the time of the two-vehicle collision at Emory Valley Road and Lafayette Drive, according to court documents.

An Anderson County man was sentenced to eight years in prison when he pleaded guilty Friday, June 28, 2019, to vehicular homicide by intoxication after a crash in Oak Ridge that killed his three-year-old son on January 13, 2017. The defendant, Jason Robert Braden II, is pictured above at center in Anderson County Criminal Court on Friday, March 29, 2019. At left is defense attorney David Stuart, who represented Braden. (Photo by John Huotari/Oak Ridge Today)

 

An Anderson County man was sentenced to eight years in prison on Friday when he pleaded guilty to vehicular homicide by intoxication after a crash in Oak Ridge that killed his three-year-old son in January 2017.

The man told police that he had injected roxycodone about six to eight hours before the crash and was driving to Methodist Medical Center of Oak Ridge with a man who had overdosed at the time of the two-vehicle collision at Emory Valley Road and Lafayette Drive, according to court documents.

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

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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.