For the first time in 26 years, work crews performed sampling of gaseous byproducts at the MSRE. (Photo: DOE)
A nuclear power display by the AEC was one of the exhibits at the Oregon Centennial Exposition and International Trade Fair in 1959. (Photo: Oregon Historical Society)
The Oregon Encyclopedia website has posted an article about the state’s Oregon Centennial Exposition and International Trade Fair, held in Portland in 1959 in celebration of Oregon’s becoming the 35th U.S state 100 years prior. The Oregon Encyclopedia is a project of the Oregon Historical Society.
DRUM team members at the Telluride 18 mine in the Yellow Cat area of southwest Colorado.
Based on a review of U.S. Atomic Energy Commission (AEC) records and available data from numerous agencies, there are an estimated 4,225 mines across the country that provided uranium ore to the U.S. government for defense-related purposes between 1947 and 1970. To aid in the cleanup of these legacy uranium mines and establish a record of their locations and current conditions, the Defense-Related Uranium Mines (DRUM) program was established within the Department of Energy’s Office of Legacy Management (LM).
Cover of the April 1962 issue of Nuclear News (left), ATR core diagram appearing in October 1969 issue of Nuclear News (center), and cover of the October 1969 issue of Nuclear News (right).
The Department of Energy and Idaho National Laboratory announced this week that the sixth major core overhaul of the Advanced Test Reactor (ATR) is complete, after an 11-month outage that began in April 2021. The ATR was built as a key piece of mission support for U.S. Navy programs and first reached full power in 1969. Today it remains “the world’s largest, most powerful and flexible materials test reactor,” in the words of INL—quite a feat for a reactor that was planned over 60 years ago.
The cover of the August 1969 issue of Nuclear News (left), an image of Brunhilde, the dog that had the first nuclear-powered pacemaker in the U.S. (center) and the cover of the December 1970 Nuclear News (right).
In this first installment of a #ThrowbackThursday post, Nuclear News provides a review of radioisotope-powered pacemakers in response to an article in The Wall Street Journal. The article, published earlier this week, looks at the issue of disposing of nuclear-powered pacemakers, although considering how few are still in use today, it seems like this is really much ado about nothing.
September 10, 2021, 8:22AMUpdated December 31, 2021, 7:15AMNuclear NewsThomas R. Wellock
An aerial view of the Hanford reservation and Columbia River that shows the N (nearest), KE/KW (center), and B (top right) reactors. (Photo: U.S. DOE )
In March 1972, Stephen Hanauer, a technical advisor with the Atomic Energy Commission, met with Norman Rasmussen, a nuclear engineering professor at the Massachusetts Institute of Technology. The AEC had recruited Rasmussen to develop a report, The Reactor Safety Study (WASH-1400), to estimate the probabilities and consequences of a major nuclear power plant accident. With thousands of safety components in a modern reactor, the task was mind-boggling. Rasmussen proposed a novel approach based on more powerful computers, “fault tree” methodology, and an expanding body of operational data. By calculating and aggregating probabilities for innumerable failure chains of components, he believed he could develop a meaningful estimate of overall accident risk. WASH-1400 would be a first-of-its-kind probabilistic risk assessment (PRA).