plutonium


The Pyroprocessing Files

, senior scientist

The article by Ralph Vartabedian in the Los Angeles Times highlights the failure of the Department of Energy’s decades-long effort to chemically process a stockpile of spent nuclear fuel at Idaho National Laboratory, ostensibly to convert the waste to forms that would be safer for disposal in a geologic repository. A secondary goal was to demonstrate the viability of a new type of processing spent fuel—so-called pyroprocessing. Instead, it has demonstrated the numerous shortcomings of this technology. Read more >

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Increase in Cancer Risk for Japanese Workers Accidentally Exposed to Plutonium

, senior scientist

According to news reports, five workers were accidentally exposed to high levels of radiation at the Oarai nuclear research and development center in Tokai-mura, Japan on June 6th. The Japan Atomic Energy Agency, the operator of the facility, reported that five workers inhaled plutonium and americium that was released from a storage container that the workers had opened. The radioactive materials were contained in two plastic bags, but they had apparently ripped.

We wish to express our sympathy for the victims of this accident. Read more >

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The Good, the Bad, and the Ugly: NNSA’s FY18 Budget Request

, Washington representative and senior analyst

On Tuesday, May 23, the Trump administration released its Fiscal Year 2018 (FY2018) budget request. In an overall federal budget where many, many programs faced severe budget cuts, the National Nuclear Security Administration (NNSA) is on the receiving end of a proposed 11 percent budget increase (at least by the Trump administration’s accounting – more on that in a following post). Read more >

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Reflections on the IAEA Nuclear Security Conference: More Participants, Less Focus

, senior scientist

Last week I had the opportunity to attend the conference on nuclear security in Vienna sponsored by the International Atomic Energy Agency (IAEA). The conference was enormous, with 2,000 participants from 130 countries. The US official delegation alone had over 100 people. I heard (but have not substantiated) that the ministerial meeting that preceded the technical meeting attracted a larger number of national delegations than any other IAEA conference in its history. By one measure—inclusivity—the conference seems to have been a success.

However, that success came at a price: a reduction of focus on the most serious nuclear threat—the theft of fissile materials (highly-enriched uranium (HEU) and plutonium) that terrorists could use to make improvised nuclear weapons. Read more >

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Cuts to the Fissile Materials Stockpile

, analyst

The Final Countdown

The United States maintains stockpiles of weapons-usable fissile materials—plutonium and highly enriched uranium (HEU)—that are much larger than needed. This material is a security risk, and is also expensive to store safely. Some of this fissile material has already been declared “excess to military needs” and is awaiting disposition. Even after that excess material is disposed of, however, the United States will still have far more material than it needs for its current or future arsenal. President Obama should declare additional material excess and schedule it for disposition as soon as possible. If done correctly, this would reduce opportunities for nuclear terrorism. It would also be a step toward making nuclear reductions more difficult to reverse.

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