Oak Ridge Today

NNSA partners with Russia to recover ‘dirty bomb’ material

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WASHINGTON, D.C.— The National Nuclear Security Administration, in partnership with the Russian Federation, has successfully completed the removal of 14 Russian radioisotope thermoelectric generators, or RTGs, from the Northern Sea Route. These devices, which contain high-activity radioactive sources, powered navigational beacons along Russia’s northern coastline. With this removal, the U.S. Department of Energy has completed its efforts to recover RTGs along the Northern Sea Route, a press release said.

RTGs were used for many years in Russia to generate electrical power at remote locations, including lighthouses and navigational beacons. The 14 RTGs recently recovered by DOE contain more than one million curies of strontium-90, a high-activity radioisotope that could be used in a dirty bomb. [Read more…]

U.S., international partners remove last weapons-grade uranium from Hungary

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Highly Enriched Uranium Removed from Hungary

The U.S. Department of Energy announced Monday that all remaining highly enriched uranium has been removed from Hungary. (Photos courtesy National Nuclear Security Administration)

Note: This story was updated at 6:23 a.m. Nov. 6.

WASHINGTON, D.C.—The U.S. Department of Energy announced Monday that all remaining highly enriched uranium has been removed from Hungary.

There was enough material removed in the multi-year international effort to fuel nine nuclear weapons, DOE said in a press release.

The removal of the highly enriched uranium, or HEU, was coordinated between Hungary, the United States, the Russian Federation, and the International Atomic Energy Agency, or IAEA.

Hungary is the 12th country to completely eliminate HEU since President Barack Obama announced an international effort in 2009 to secure all vulnerable nuclear material around the world, the release said. [Read more…]

U.S. must combat nuclear proliferation, maintain safe weapons arsenal, NNSA nominee says

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Frank Klotz

Frank Klotz

The United States must continue to lead international efforts to limit and reduce nuclear arsenals, combat nuclear proliferation, and secure nuclear materials across the globe, the retired military officer who has been nominated to lead the National Nuclear Security Administration told a Senate committee.

But the NNSA has a second, unique responsibility: maintain a safe weapons arsenal, retired U.S. Air Force Lt. Gen. Frank Klotz said in prepared remarks to the Senate Armed Services Committee on Thursday morning. [Read more…]

US, international partners remove last highly enriched uranium from Vietnam

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Vietnam HEU Removal

A worker prepares a special container carrying highly enriched uranium before loading onto a cargo plane for repatriation to Russia. (Photo courtesy NNSA)

Official in the United States, Vietnam, and Russia announced this month that they have removed 11 kilograms of highly enriched uranium, or HEU, from the Dalat Nuclear Research Institute in Dalat, Vietnam.

“With this shipment, the Socialist Republic of Vietnam became the eleventh country from which all HEU has been removed since President Obama’s 2009 announcement in Prague of an international effort to secure all vulnerable nuclear material around the world,” the U.S. Department of Energy’s National Nuclear Security Administration said in a press release. “The U.S. will work with our international partners to remove the remaining HEU from another country by the end of 2013 in support of this global effort and the goals of the Nuclear Security Summits.” [Read more…]

Guest column: UU minister responds to historic decisions on marriage equality

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As one ordained to spread the good news of the unending power of love in this world, this week I celebrate the Supreme Court decisions on marriage equality and that the Defense of Marriage Act has been declared unconstitutional.

The faith I affirm challenges me to speak and act for justice for all who express their love in the commitment of marriage.  Support for marriage equality is in scriptures and traditions that proclaim overriding messages of love, justice, and inclusion of those on the margins of society. [Read more…]

More than 475 metric tons of Russian highly enriched uranium eliminated

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Deliveries are 95 percent complete, represents 19,000 nuclear warheads converted to civilian use

WASHINGTON, D.C.–The National Nuclear Security Administration on Monday announced it has monitored the elimination of more than 475 metric tons of Russian highly enriched uranium, or HEU, under a landmark nuclear nonproliferation program, commonly known as Megatons to Megawatts.

The rough equivalent of 19,000 nuclear weapons has been permanently eliminated, the NNSA said in a press release. [Read more…]

Chinese supercomputer bumps ORNL’s Titan from No. 1 spot

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Tianhe-2 Lights

Lights on the Chinese Tianhe-2 supercomputer, which has a theoretical peak that is twice as fast as the Titan supercomputer at Oak Ridge National Laboratory. (Photo courtesy Jack Dongarra)

A Chinese supercomputer has bumped the Titan supercomputer at Oak Ridge National Laboratory from the No. 1 spot on a semiannual ranking of the world’s most powerful supercomputers.

The Tianhe-2, which was developed by China’s National University of Defense Technology, is capable of 33.86 petaflops, or more than 33,000 trillion calculations per second.

Now ranked No. 2, Titan was able to perform 17,000 trillion calculations per second, or 17.59 petaflops, according to the list published in November. [Read more…]

Faith column: A real drought crisis

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A large area of our United States experiences major drought conditions frequently. This is unusual for some of the affected areas. Occasionally, this happens everywhere but when it happens to your territory you react differently. The Bible used the phrase, “It depends on whose ox is getting gored.” We don’t mind if the desert Southwest goes dry, they are used to it! And it’s okay if the Sahara Desert gets a little bigger, nobody important lives there anyway! However, when your grass turns brown or they start water rationing in your neighborhood…then it is a crisis!

Wherever there is a crisis, it affects those around them and larger areas in a ripple effect. If the hay crop is reduced, if the tomatoes don’t bloom, or if the corn withers away, then it hits the farmers first and gradually stores, and finally our own pocketbooks. If people thought Katrina only affected those in Louisiana, they learned in subsequent months just how far-reaching disaster spreads. Just ask your local insurance agent! [Read more…]