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Trump administration scraps MOX project to generate power from plutonium

Trump administration axes project to generate power from plutonium, Timothy Gardner, WASHINGTON (Reuters) 13 May 18 – The Trump administration plans to kill a project it says would have cost tens of billions of dollars to convert plutonium from Cold War-era nuclear bombs and burn it to generate electricity, according to a document it sent to Congress last week.

The Department of Energy submitted a document on May 10 to Senate and House of Representative committees saying that the Mixed Oxide (MOX) project at the Savannah River Site in South Carolina would cost about $48 billion more than $7.6 billion already spent on it. The United States has never built a MOX plant.

Instead of completing MOX, the administration, like the Obama administration before it, wants to blend the 34 tonnes of deadly plutonium – enough to make about 8,000 nuclear weapons – with an inert substance and bury it underground in a New Mexico’s Waste Isolation Pilot Plant (WIPP). Burying the plutonium would cost about $19.9 billion, according to the document, a copy of which was seen by Reuters.

“We are currently processing plutonium in South Carolina for shipment (to WIPP) … and intend to continue to do so,” Energy Secretary Rick Perry said in a letter sent to committee leaders.

Legislation passed in February allows the Energy Department to advance burying the plutonium if it showed that the cost would be less than half of completing MOX……..

Edwin Lyman, a physicist at science advisory group the Union of Concerned Scientists concerned about plutonium getting into the wrong hands, said Perry had made a sensible decision. “MOX was a slow-motion train wreck, and throwing good money after bad simply wasn’t an option.”

Reporting by Timothy Gardner; Editing by Lisa Shumaker  https://www.reuters.com/article/us-usa-plutonium-mox/trump-administration-axes-project-to-generate-power-from-plutonium-idUSKCN1IE0LH

May 14, 2018 Posted by | - plutonium, politics, reprocessing, USA | Leave a comment

USA National Nuclear Security Administration (NNSA) plan for unnecessary production of plutonium pits

What’s Not in NNSA’s Plutonium Pit Production Decision,  Santa Fe, NM –May 10, 2018 Contact Jay Coghlan, Nuclear Watch NM, 505.989.7342, c. 505.470.3154, jay@nukewatch.org Scott Kovac, Nuclear Watch NM, 505.989.7342, scott@nukewatch.org 

Today the National Nuclear Security Administration (NNSA) announced: To achieve DoD’s [the Defense Department] 80 pits per year requirement by 2030, NNSA’s recommended alternative repurposes the Mixed Oxide Fuel Fabrication Facility at the Savannah River Site in South Carolina to produce plutonium pits while also maximizing pit production activities at Los Alamos National Laboratory in New Mexico. This two-prong approach – with at least 50 pits per year produced at Savannah River and at least 30 pits per year at Los Alamos – is the best way to manage the cost, schedule, and risk of such a vital undertaking.
 First, in Nuclear Watch’s view, this decision is in large part a political decision, designed to keep the congressional delegations of both New Mexico and South Carolina happy. New Mexico Senators Tom Udall and Martin Heinrich are adamantly against relocating plutonium pit production to South Carolina. On the other hand, South Carolina Senator Lindsay Graham was keeping the boondoggle Mixed Oxide (MOX) program on life support, and this pit production decision may help to mollify him. This could also perhaps help assuage the State of South Carolina, which is suing the Department of Energy for failing to remove plutonium from the Savannah River Site as promised.
But as important is what is NOT in NNSA’s plutonium pit production decision:
: • There is no explanation why the Department of Defense requires at least 80 pits per year, and no justification to the American taxpayer why the enormous expense of expanded production is necessary.
 • NNSA avoided pointing out that expanded plutonium pit production is NOT needed to maintain the safety and reliability of the existing nuclear weapons stockpile. In fact, no production of plutonium pits for the existing stockpile has been scheduled since 2011, and none is scheduled for the future.
• NNSA did not mention that in 2006 independent experts found that pits last a least a century. Plutonium pits in the existing stockpile now average around 40 years old. The independent expert study did not find any end date for reliable pit lifetimes, indicating that plutonium pits could last far beyond just a century.
NNSA did not mention that up to 15,000 “excess” pits are already stored at the Pantex Plant near Amarillo, TX, with up to another 5,000 in “strategic reserve.” The agency did not explain why new production is needed given that immense inventory of already existing plutonium pits.
• Related, NNSA did not explain how to dispose of all of that plutonium, given that the MOX program is an abysmal failure. Nor is it made clear where future plutonium wastes from expanded pit production will go since operations at the troubled Waste Isolation Pilot Plant are already constrained from a ruptured radioactive waste barrel, and its capacity is already overcommitted to existing radioactive wastes.
 • NNSA did not make clear that expanded plutonium pit production is for a series of speculative future “Interoperable Warheads.” The first IW is meant to replace nuclear warheads for both the Air Force’s land-based and the Navy’s sub-launched ballistic missiles. The Obama Administration delayed “IW-1” because the Navy does not support it. However, the Trump Administration is restarting it, with annual funding ballooning to $448 million by 2023, and “IW-2” starting in that same year. Altogether the three planned Interoperable Warheads will cost at least $40 billion, despite the fact that the Navy doesn’t support them. 1
 • NNSA’s expanded plutonium pit production decision did not mention that exact replicas of existing pits will NOT be produced. The agency has selected the W87 pit for the Interoperable Warhead, but its FY 2019 budget request repeatedly states that the pits will actually be “W87- like.” This could have serious potential consequences because any major modifications to plutonium pits cannot be full-scale tested, or alternatively could prompt the U.S. to return to nuclear weapons testing, which would have severe international proliferation consequences.
 • The State of South Carolina is already suing the Department of Energy for its failure to begin removing the many tons of plutonium at the Savannah River Site (SRS). NNSA’s pit production decision will not solve that problem, even as it will likely bring more plutonium to SRS. 
• The independent Defense Nuclear Facilities Safety Board has expressed strong concerns about the safety of plutonium operations at both the Los Alamos National Laboratory (LANL) LANL and SRS, particularly regarding potential nuclear criticality incidents. 2 NNSA did not address those safety concerns in its plutonium pit production decision.
• Politicians in both New Mexico and South Carolina trumpet how many jobs expanded plutonium pit production will create. Yet NNSA’s expanded plutonium pit production decision does not have any solid data on jobs produced. One indicator that job creation will be limited is that the environmental impact statement for a canceled $6 billion plutonium facility at LANL stated that it would not produce a single new Lab job because it would merely relocate existing jobs. Concerning SRS, it is doubtful that pit production could fully replace the jobs lost as the MOX program dies a slow death. In any event, there certainly won’t be any data on the greater job creation that cleanup and renewable energy programs would create. Funding for those programs is being cut or held flat, in part to help pay for nuclear weapons programs.
• Finally, the National Environmental Policy Act (NEPA) requires that major federal proposals be subject to public review and comment before a formal decision is made. NNSA’s decision does not mention its NEPA obligations at all. In 1996 plutonium pit production was capped at 20 pits per year in a nation-wide Stockpile Stewardship and Management Programmatic Environmental Impact Statement (PEIS). NNSA failed to raise that production limit in any subsequent NEPA process, despite repeated attempts. Arguably a decision to produce 80 pits or more per year requires a new or supplemental nation-wide programmatic environmental impact statement to raise the production limit, which the new dual-site decision would strongly augment. This then should be followed by whatever site-specific NEPA documents might be necessary.

Jay Coghlan, Nuclear Watch Director, commented, “NNSA has already tried four times to expand plutonium pit production, only to be defeated by citizen opposition and its own cost overruns and incompetence. But we realize that this fifth attempt is the most serious. However, we remain confident it too will fall apart, because of its enormous financial and environmental costs and the fact that expanded plutonium pit production is simply not needed for the existing nuclear weapons stockpile. We think the American public will reject new-design nuclear weapons, which is what this expanded pit production decision is really all about.

” # # #

 1 See 2012 Navy memo demonstrating its lack of support for the Interoperable Warhead athttps://www.nukewatch.org/importantdocs/resources/Navy-Memo-W87W88. 2 For example, see Safety concerns plague key sites proposed for nuclear bomb production, Patrick Malone, Center for Public Integrity, May 2, 2108,https://www.usatoday.com/story/news/nation/2018/05/02/safety-concerns-nuclear-bomb-manufacturesites/572697002/

May 12, 2018 Posted by | - plutonium, politics, USA, weapons and war | Leave a comment

Los Alamos National Laboratory will share production of plutonium pits with the Savannah River Site in South Carolina

NNSA announces decision on pit production, L A Monitor, May 11, 2018,  Los Alamos National Laboratory will share production of plutonium pits with the Savannah River Site in South Carolina, the Nuclear Weapons Council and National Nuclear Security Administration announced Thursday.

LANL will maintain production of 30 plutonium pits per year, while the Savannah River Site will produce 50 pits per year.

“To achieve DoD’s 80 pits per year requirement by 2030, NNSA’s recommended alternative repurposes the Mixed Oxide Fuel Fabrication Facility at the Savannah River Site in South Carolina to produce plutonium pits while also maximizing pit production activities at Los Alamos National Laboratory in New Mexico,” according to Thursday’s release.

……. Plutonium pits are the size of a softball and are used as trigger mechanisms for nuclear weapons…..

The NNSA was given a mandate by Congress to manufacture 80 plutonium pits per year by 2030 as part of a nuclear weapons modernization plan. The NNSA has been studying which site would best be able to accommodate the manufacture of plutonium pits. ……
Nuclear Watch New Mexico criticized the decision as purely political.

“First, in Nuclear Watch’s view, this decision is in large part a political decision, designed to keep the congressional delegations of both New Mexico and South Carolina happy,” said Nuclear Watch Executive Director Jay Coghlan. “New Mexico Senators Tom Udall and Martin Heinrich are adamantly against relocating plutonium pit production to South Carolina. On the other hand, South Carolina Senator Lindsay Graham was keeping the boondoggle Mixed Oxide (MOX) program on life support, and this pit production decision may help to mollify him.

Coghlan said he believes the split plan will ultimately fail.

“NNSA has already tried four times to expand plutonium pit production, only to be defeated by citizen opposition and its own cost overruns and incompetence,” Coghlan said. “But we realize that this fifth attempt is the most serious.

“However, we remain confident it too will fall apart, because of its enormous financial and environmental costs and the fact that expanded plutonium pit production is simply not needed for the existing nuclear weapons stockpile. We think the American public will reject new-design nuclear weapons, which is what this expanded pit production decision is really all about.”

Greg Mello, executive director of the Los Alamos Study Group, took a more pragmatic view. ……

“Pit production isn’t needed for decades, even for a large arsenal, but Congress has demanded it, so the bulk of the work will leave LANL. The R and D (research and development) work will stay behind. This transition is many years down the road. Pit production will always be difficult, expensive and dangerous wherever it’s done.”

A fact sheet about the decision can be found here.  http://www.lamonitor.com/content/nnsa-announces-decision-pit-production

May 12, 2018 Posted by | - plutonium, USA, weapons and war | Leave a comment

  Idaho State University Lost Enough Weapons-Grade Plutonium to Make a Dirty Bomb. 

Motherboard 8th May 2018.On Friday, the Nuclear Regulatory Commission announced that Idaho
State University may face an $8,500 fine after losing one gram of
weapons-grade plutonium. Although this quarter-sized amount of plutonium is
nowhere near enough to make a nuclear weapon, it is enough to make a dirty
bomb that spreads radiation, according to the Associated Press.
https://motherboard.vice.com/en_us/article/evqjp4/idaho-state-university-lost-enough-weapons-grade-plutonium-to-make-a-dirty-bomb

May 9, 2018 Posted by | - plutonium, secrets,lies and civil liberties, USA | Leave a comment

Continued safety concerns about production of “plutonium pits” for nuclear bombs

Safety concerns plague key sites proposed for nuclear bomb production, USA Today , Patrick Malone, Center for Public Integrity . ET May 3, 2018

Decision due soon on where plutonium parts for the next generation of nuclear weapons are to be made 

The Department of Energy is scheduled to decide within days where plutonium parts for the next generation of nuclear weapons are to be made, but recent internal government reports indicate serious and persistent safety issues plague both of the two candidate sites.

Some experts are worried about the safety records of either choice: Los Alamos National Laboratory in New Mexico, where plutonium parts have historically been assembled, and the Savannah River Site in South Carolina, where other nuclear materials for America’s bombs have been made since in the 1950s.

An announcement by the Trump administration about the location is expected by May 11 in preparation for the ramped-up production of nuclear warheads called for by the Defense Department’s recent review of America’s nuclear weapons policy.

Recent internal government reports obtained by the Center for Public Integrity have warned that workers at these plants have been handling nuclear materials sloppily or have failed to monitor safety issues aggressively.

……….The continued mistakes at Los Alamos follow a three-year period of stasis in the U.S. plutonium production program forced by the lab’s inability to meet safety standards for plutonium operations. Los Alamos’ plutonium facility shelved all the nation’s high-hazard plutonium work, including the production of nuclear weapons cores or “pits,” in the summer of 2013, and has recently resumed most but not all of the wor

The prolonged shutdown at Los Alamos — the birthplace of the nuclear bomb — provoked National Nuclear Security Administration’s principal assistant deputy administrator for defense, Philip Calbos, to remark during a panel discussion at National Defense University in February that nuclear rivals are noticing America’s missteps.

………..Plutonium pits are the shiny metallic, softball-size orbs that hold the most potent destructive force man has ever harnessed in a weapon. During the Cold War, the Rocky Flats production site in Colorado made as many as 2,000 a year. Decades of poor disposal of nuclear wastes and other dangerous environmental practices culminated in a dramatic FBI raid in 1989 that led to the site’s closure in 1992.

Nuclear criticality safety, the craft of avoiding a self-starting, potentially lethal, nuclear chain reaction merely from positioning too much plutonium too closely together, is an ever-present concern during such production……..https://www.usatoday.com/story/news/nation/2018/05/02/safety-concerns-nuclear-bomb-manufacture-sites/572697002/

 

May 4, 2018 Posted by | - plutonium, safety, USA | Leave a comment

America’s over-loaded plutonium waste sites pose a serious danger

Science Recorder 27th April 2018 , The U.S. Energy Department has 54 metric tons of surplus plutonium at sites
across the country and cannot decide what to do with it, according to department officials. Nuclear researchers warn that many of these sites are
storing more of the radioactive substance than is safe and that a mishap at any one of them could lead to full-blown disaster.
https://sciencerecorder.com/article.php?n=united-states-has-too-much-deadly-plutonium-on-its-hands&id=144178

April 30, 2018 Posted by | - plutonium, USA | Leave a comment

The under-rated risks from plutonium

Homeland Preparedness News 27th April 2018 , A new paper from the Nuclear Threat Initiative (NTI) provided
recommendations for mitigating risks related to separated plutonium. As compared to highly enriched uranium (HEU), separated plutonium has not
received enough attention as a security risk, NTI Counselor John Carlson said in the paper, titled “Mitigating Security Risks from Separated Plutonium: Some Near-Term Steps.”
Eight countries currently hold more than 375 metric tons of separated plutonium, which is produced by reprocessing irradiated nuclear fuel. The paper recommends minimizing stocks and specific actions in production, storage and use of the material. “Even small quantities [of plutonium] could be of interest to terrorists if they see opportunities for acquiring plutonium in a number of locations or for use in a radiological dispersal device,” Carlson said.
https://homelandprepnews.com/stories/28131-nuclear-threat-initiative-highlights-separated-plutonium-security-risks/

April 30, 2018 Posted by | - plutonium, 2 WORLD, Reference, safety | Leave a comment

How can USA and Russia’s Plutonium Disposition Program finally become effective?

Bulletin of Atomic Scientists 24th April 2018 , During the Cold War, the United States and the Soviet Union manufactured
enormous quantities of plutonium for use in nuclear weapons. When that era
ended, the United States and the newly formed Russian Federation began to
reduce their nuclear arsenals. Both nations possessed large stockpiles of
plutonium—a problem that posed both a sustained threat to the environment
and a risk of future nuclear weapons proliferation.

In 2000, the United States and Russia pledged to dispose of their excess plutonium in order to
mitigate the security concerns, safety risks, and storage costs. They
signed the Plutonium Management and Disposition Agreement, which requires
each country to dispose of at least 34 metric tons of weapons plutonium.

Unfortunately, the agreement failed to solve the excess plutonium problem.
Eighteen years later, the United States has been unable to develop a
successful strategy to safely, affordably, and permanently dispose of
plutonium from dismantled nuclear weapons, despite a high degree of
industrial capability and technical expertise. Why has the United States
been unable to either implement its obligations under the disposition
agreement or execute its own policy? And how can the Plutonium Disposition
Program finally become effective?
https://thebulletin.org/what-went-wrong-us-plutonium-disposition11733

April 27, 2018 Posted by | - plutonium, USA | Leave a comment

Who is responsible for plutonium contamination at Washinton nuclear cleanup site?

LA Times 23rd April 2018, As crews demolished a shuttered nuclear weapons plant during 2017 in
central Washington, specks of plutonium were swept up in high gusts and
blown miles across a desert plateau above the Columbia River.

The releases at the Department of Energy cleanup site spewed unknown amounts of
plutonium dust into the environment, coated private automobiles with the
toxic heavy metal and dispensed lifetime internal radioactive doses to 42
workers.

The contamination events went on for nearly 12 months, getting
progressively worse before the project was halted in mid-December. Now,
state health and environmental regulators, Department of Energy officials
and federal safety investigators are trying to figure out what went wrong
and who is responsible.
http://www.oregonlive.com/pacific-northwest-news/index.ssf/2018/04/why_was_plutonium_dust_left_to.html

April 27, 2018 Posted by | - plutonium, USA | Leave a comment

How the diabolically dangerous plutonium cores killed two nuclear scientists

The Nuclear ‘Demon Core’ That Killed Two Scientists https://www.atlasobscura.com/articles/demon-core-that-killed-two-scientistsAfter World War II ended, physicists kept pushing a plutonium core to its edge. BY SARAH LASKOW 
APRIL 23, 2018 

Since the United States dropped two atomic bombs on Japan, the world has been in a state of readiness for nuclear combat. In this secretive domain, mistakes and mishaps are often hidden: This week we’re telling the stories of five nuclear accidents that burst into public view.
THE WAR WAS OVER—JAPAN HAD surrendered. The third plutonium core created by the United States, which scientists at Los Alamos National Lab had been preparing for another attack, was no longer needed as a weapon. For the moment, the lab’s nuclear scientists were allowed to keep the sphere, an alloy of plutonium and gallium that would become known as the demon core.

In a nuclear explosion, a bomb’s radioactive core goes critical: A nuclear chain reaction starts and continues with no additional intervention. When nuclear material goes supercritical, that reaction speeds up. American scientists knew enough about the radioactive materials they were working with to be able to set off these reactions in a bomb, but they wanted a better understanding of the edge where subcritical material tipped into the dangerous, intensely radioactive critical state.

 One way to push the core towards criticality involved turning the neutrons it shedback onto the core, to destabilize it further. The “Critical Assembly Group” at Los Alamos was working on a series of experiments in which they surrounded the core with materials that reflected neutrons and monitored the core’s state.

The first time someone died performing one of these experiments, Japan had yet to formally sign the terms of surrender. On the evening of August 21, 1945, the physicist Harry Daghlian was alone in the lab, building a shield of tungsten carbide bricks around the core. Ping-ponging neutrons back the core, the bricks had brought the plutonium close to the threshold of criticality, when Daghlian dropped a brick on top. Instantly, the core reacted, going supercritical and Daghlian was doused in a lethal dose of radiation. He died 25 days later.

His death did not dissuade his colleagues, though. Nine months later, they had developed another way to bring the core close to that critical edge, by lowering a dome of beryllium over the core. Louis Slotin, another physicist, had performed this move in many previous experiments: He would hold the dome with one hand, and with the other use a screwdriver to keep a small gap open, just barely limiting the flow of neutrons back to the bomb. On a May day in 1946, his hand slipped, and the gap closed. Again, the core went supercritical and dosed Slotin, along with seven other scientists in the room, with gamma radiation.

In each instance, when the core slipped over that threshold and started spewing radiation, a bright blue light flashed in the room—the result of highly energized particles hitting air molecules, which released that bolt of energy as streams of light.

The other scientists survived their radiation bath, but Slotin, closest to the core, died of radiation sickness nine days later. The experiments stopped. After a cooling-off period, the demon core was recast into a different weapon, eventually destroyed in a nuclear test.

April 25, 2018 Posted by | - plutonium, incidents, USA | Leave a comment

America’s mounting piles of plutonium cores – to be removed, perilously, by contract workers

Reuters 20th April 2018 , In a sprawling plant near Amarillo, Texas, rows of workers perform by hand
one of the most dangerous jobs in American industry. Contract workers at
the U.S. Department of Energy’s Pantex facility gingerly remove the
plutonium cores from retired nuclear warheads. Although many safety rules
are in place, a slip of the hand could mean disaster.

In Energy Department facilities around the country, there are 54 metric tons of surplus
plutonium. Pantex, the plant near Amarillo, holds so much plutonium that it
has exceeded the 20,000 cores, called “pits,” regulations allow it to
hold in its temporary storage facility. There are enough cores there to
cause thousands of megatons of nuclear explosions. More are added each day.
https://www.reuters.com/article/us-usa-nukes-plutonium-specialreport/americas-nuclear-headache-old-plutonium-with-nowhere-to-go-idUSKBN1HR1KC

April 22, 2018 Posted by | - plutonium, employment, USA | Leave a comment

America’s dangerous stockpile of old plutonium cores

America’s nuclear headache: old plutonium with nowhere to go https://www.reuters.com/article/us-usa-nukes-plutonium-specialreport/americas-nuclear-headache-old-plutonium-with-nowhere-to-go-idUSKBN1HR1KC, Scot J. Paltrow

AMARILLO, Texas (Reuters) – In a sprawling plant near Amarillo, Texas, rows of workers perform by hand one of the most dangerous jobs in American industry. Contract workers at the U.S. Department of Energy’s Pantex facility gingerly remove the plutonium cores from retired nuclear warheads.

Although many safety rules are in place, a slip of the hand could mean disaster.

In Energy Department facilities around the country, there are 54 metric tons of surplus plutonium. Pantex, the plant near Amarillo, holds so much plutonium that it has exceeded the 20,000 cores, called “pits,” regulations allow it to hold in its temporary storage facility. There are enough cores there to cause thousands of megatons of nuclear explosions. More are added each day.

The delicate, potentially deadly dismantling of nuclear warheads at Pantex, while little noticed, has grown increasingly urgent to keep the United States from exceeding a limit of 1,550 warheads permitted under a 2010 treaty with Russia. The United States wants to dismantle older warheads so that it can substitute some of them with newer, more lethal weapons. Russia, too, is building new, dangerous weapons.

The United States has a vast amount of deadly plutonium, which terrorists would love to get their hands on. Under another agreement, Washington and Moscow each are required to render unusable for weapons 34 metric tons of plutonium. The purpose is twofold: keep the material out of the hands of bad guys, and eliminate the possibility of the two countries themselves using it again for weapons. An Energy Department website says the two countries combined have 68 metric tons designated for destruction – enough to make 17,000 nuclear weapons. But the United States has no permanent plan for what to do with its share.

Plutonium must be made permanently inaccessible because it has a radioactive half-life of 24,000 years.

“A MUCH MORE DANGEROUS SITUATION”

Edwin Lyman, a physicist at the Union of Concerned Scientists, a science advocacy group based in Washington, says solving the problem of plutonium storage is urgent. In an increasingly unstable world, with terrorism, heightened international tensions and non-nuclear countries coveting the bomb, he says, the risk is that this metal of mass annihilation will be used again. William Potter, director of the James Martin Center for Nonproliferation Studies at the Middlebury Institute of International Studies, told Reuters: “We are in a much more dangerous situation today than we were in the Cold War.”

Washington has not even begun to take the steps needed to acquire additional space for burying plutonium more than 2,000 feet below ground – the depth considered safe. Much of America’s plutonium currently is stored in a building at the Savannah River Site in South Carolina – like Pantex, an Energy Department site. Savannah River used to house a reactor. Local opponents of the storage, such as Tom Clements, director of SRS Watch, contend the facility was never built for holding plutonium and say there is a risk of leakage and accidents in which large amounts of radioactivity are released.

The Energy Department has a small experimental storage site underground in New Mexico. The department controls the radioactive materials – plutonium, uranium and tritium – used in America’s nuclear weapons and in the reactors of nuclear-powered aircraft carriers and submarines. In a Senate hearing in June 2017, Energy Secretary Rick Perry said the Energy Department has been in talks with New Mexico officials to enlarge the site. Environmental groups there have strongly opposed expansion.

Under an agreement with Russia, the United States was to convert 34 metric tons of plutonium into fuel for civilian reactors that generate electricity. The fuel is known as MOX, for “mixed oxide fuel.” Plutonium and uranium are converted into chemical compounds called oxides, and mixed together in fuel rods for civilian nuclear power plants. The two metals are converted into oxides because these can’t cause nuclear explosions. But the U.S. effort has run into severe delays and cost overruns.

The alternative method is known as dilute-and-dispose. It involves blending plutonium with an inert material and storing it in casks. The casks, however, are projected to last only 50 years before beginning to leak, and so would need to be buried permanently deep underground.

April 21, 2018 Posted by | - plutonium, Reference, USA | Leave a comment

Plutonium contamination forces shutdown of demolition process for Hanford nuclear site

Contamination from a nuclear cleanup forced a shutdown. Investigators want to know who is responsible http://www.latimes.com/nation/la-na-hanford-plutonium-exposure-20180330-story.htmlBy RALPH VARTABEDIAN, APR 16, 2018 

April 20, 2018 Posted by | - plutonium, USA | Leave a comment

Releases of radiation from Hanford plutonium processing plan: demolition process is halted

Plutonium plant removal halted after radiation releases https://cen.acs.org/safety/Plutonium-plant-removal-halted-radiation/96/i17  Corrective measures include better control measures, communication with workers  by Jeff Johnson  APRIL 18, 2018 

The Department of Energy (DOE) has called for 42 actions to correct safety deficits that led to a series of radioactive releases during demolition of the now-closed plutonium processing facility at the former Hanford nuclear weapons production site in Washington state.

The actions include better application of coatings and use of other technologies to control spread of radioactive contamination, broader radiation boundaries, improve air dispersion measurement and modeling, greater involvement of employees as demolition moves ahead, and better training of and communication with site workers to solicit their input.

Following the releases, site remediation halted last December. Several hundred workers were tested for radiation exposure. Test results showed that several dozen workers had inhaled or ingested detectable radiation but at levels acceptable to the department.

The shutdown only affects demolition of the plutonium facility, but that is a significant part of the $2 billion a year Hanford cleanup. Hanford, in turn, is the largest component in what is the world’s more expensive remediation program. During World War II and the Cold War, the Hanford site was one of more than 100 U.S. plants that made nuclear weapons components. All the plant sites are undergoing some level of remediation.

The radiation exposure incidents at Hanford occurred last year and DOE’s analysis of what happened was released publicly in March. Additionally, DOE recently announced an additional internal but independent review of the plutonium demolition project. That analysis will be “ongoing,” according to DOE’s Office of Enterprise Assessments, which will conduct the review. An official with the office would not predict when oversight will end.

The demolition and remediation will not restart until the Washington State Department of Ecology and the U.S. Environmental Protection Agency, which regulate Hanford cleanup activities, are satisfied the operation is safe, according to DOE and Washington state officials.

The plutonium finishing facility turned plutonium nitrate solutions into solid, hockey-puck-sized plutonium “buttons” that could be shipped to other facilities. It once was a complex of some 90 building and was shut down in the 1980s. Cleanup began in 1989; demolition began in 2016.

Last June and again in December, demolition activities contaminated workers and vehicles at the site. Small levels of radiation were found away from the plutonium facility but still within the Hanford site. No detectable amounts were found in workers’ homes, DOE says.

In the March report, DOE says 281 workers requested bioassays and were tested following the December release. The results found two doses less than 1 millirem, eight doses between 1 to 10 mrem, and one dose between 10 to 20 mrem. DOE sets the acceptable level at 100 mrem/year for nonradiological workers and members of the public and 500 mrem/year for radiological workers.

Following the June release, some 300 workers requested testing and bioassays found elevated radiation exposure for 31 workers, DOE says.

April 20, 2018 Posted by | - plutonium, USA | Leave a comment

Demolition of plutonium processing plant stalled due to radiation risks to workers

Danger from radiation shuts down nuclear plant demolition in Washington state, WLWT5,  
NICHOLAS K. GERANIOS, 8 Apr 18, 
Seven decades after making key portions of the atomic bomb dropped on Nagasaki, Japan, workers at the Hanford Nuclear Reservation are being exposed to radiation as they tear down buildings that helped create the nation’s nuclear arsenal.

Dozens of workers demolishing a plutonium processing plant from the 1940s have inhaled or ingested radioactive particles in the past year, and even carried some of that radiation into their vehicles, according to the U.S. Department of Energy.

The incidents have prompted the federal government, along with state regulators, to halt the demolition of the sprawling Plutonium Finishing Plant until a safe plan can be developed.

The contamination has also shaken confidence in a massive cleanup of Hanford, the nation’s most polluted nuclear weapons production site. The work costs the federal Treasury around $2 billion a year. Hanford is near the city of Richland, about 200 miles southeast of Seattle.

“This is a very disturbing set of incidents,” said Tom Carpenter, head of the Seattle-based watchdog group Hanford Challenge.

The Energy Department, which owns Hanford, has launched an independent investigation into the spread of radiation at the plant. The investigation will be conducted by an agency office that is not connected to work at Hanford.

Radioactive particles are known to have contaminated 42 workers, which led to the shutdown of demolition, the agency has said.

Carpenter said widespread worker contamination has been rare at Hanford in recent decades. Plutonium production ended in the 1980s and the site in 1989 switched its focus to cleanup of nuclear wastes.

“It’s one of the more serious events to happen in the age of cleanup at Hanford,” Carpenter said. “There have been other incidents, but none rose to the level of plutonium contamination of this many people and private vehicles and being found miles and miles away.”

A union representing some Hanford workers said it was closely monitoring the situation…..http://www.wlwt.com/article/danger-from-radiation-shuts-down-nuclear-plant-demolition-in-washington-state/19712632

 

April 9, 2018 Posted by | - plutonium, USA | Leave a comment