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Atomic Insights

Atomic energy technology, politics, and perceptions from a nuclear energy insider who served as a US nuclear submarine engineer officer

Must Bookmark Reference Post – Why You Cannot Build a Bomb Using Spent Nuclear Fuel

February 21, 2010 By Rod Adams

Steve Packard at Depleted Cranium has published an excellent, well-researched post titled Why You Can’t Build a Bomb From Spent Fuel. It is getting high praise among people who understand the technical and political aspects of the topic being covered. Here are some sample reactions:

“In the context of this discussion, this is very useful. Good figures/diagrams too.”
Said on an email list targeting scientists and engineers while discussing the following premise – “New technologies don’t significantly reduce proliferation risk”.

“Steve, that is about the best and most complete explanation of this I have seen to date, and I have written a few of them myself. I am bookmarking this essay to have a place to refer people to every time this subject comes up.”

“Drbuzzo, truly excellent work. I may just delete the contents of my proliferation page and replace it with a link to this post.”

Filed Under: Uncategorized

About Rod Adams

Managing member at Nucleation Capital, LP.
Atomic energy expert with small nuclear plant operating and design experience. Financial, strategic, and political analyst. Former submarine Engineer Officer. Founder, Adams Atomic Engines, Inc. Host and producer, The Atomic Show Podcast. Resume available here.

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Reader Interactions

Comments

  1. Pete says

    February 21, 2010 at 9:35 PM

    The last paragraph of the essay is just one word: “Understand?” I wonder to whom the author might be addressing that question. Secretary Chu perhaps? Chu has repeatedly stated that reprocessing is a proliferation risk. This has been the official US policy for over 30 years. With today’s internet, you never know who might be reading a blog. Hopefully this might start a discussion among some influential people about what exactly is and isn’t a proliferation risk.

  2. Brian says

    February 22, 2010 at 1:03 AM

    While reprocessing itself is not a cause for proliferation concern, the technology could be. If you know how to separate out reactor grade plutonium, you definitely know how to do it with weapons grade. Granted, that still does not get you a bomb, or even weapons grade material, but it does give you an important piece of the puzzle.

    Of course, the concern about US reprocessing its spent nuclear fuel is overblown. At the moment, however, there is really no need to do so. This will probably change in half a century. Hopefully by then we can detangle some of the political messes of today.

  3. Zachary says

    February 22, 2010 at 11:38 AM

    You can, however, build a napalm grenade using gasoline, so all cars should be banned. And, Home Depots should be banned– someone could just walk right in there, grab a saw, and start hacking away at people. We are a ruthless species, humans.

  4. Brian says

    February 22, 2010 at 5:32 PM

    I’m not saying reprocessing *should* be banned, that’s silly, especially here in the US or any other weapons state. What I am saying is that that reprocessing technology can be a proliferation risk under the wrong conditions. For example, suppose we give reprocessing plant technology where one of its phases separates out elemental plutonium to Belgium. Even if the Belgian nuclear program starts off as entirely peaceful, they always have the option to build a plutonium production reactor and they have an existing facility to separate the plutonium.

    The statement that reprocessing can be a proliferation risk is not entirely without merit. Even if one happens to feel that this concern is minor (as I do), one should not go so far as to say their argument has no basis whatsoever.

  5. Pete says

    February 22, 2010 at 6:58 PM

    The most popular “reprocessing technology” is based on chemical solvent extraction. Solvent extraction is used in several different industries and applications. It is not such a secret technology. Sure, with nuclear waste reprocessing you need some special knowledge of radiation protection and in ensuring against accidental criticality of the fissile components. But solvent extraction by itself is a rather common industrial chemical process. In other words, the basic knowledge is already out there and it wouldn’t take that much additional experimentation and development to build a fuel reprocessing plant.

  6. Richard says

    February 23, 2010 at 3:18 AM

    Rod, I hope you realize that Laser Enrichment is a game changer. As soon as that technology is perfected, it becomes possible in principle to adapt it to recovering Pu-239 from spent reactor fuel. Yay, more bombs. Seriously though, what’s this crap about nuclear bombs being a bad thing? Without the terror of nuclear weapons, there would be more warfare.

    It’s my hypothesis that Americans are so paranoid about nuclear weapons and all the technology even remotely associated with them because they are an aggressive Imperial power. As a result, they fear and loathe the devices that make it impossible for them to wage war.

    • Rod Adams says

      February 23, 2010 at 3:53 AM

      @Richard – I concur. However, it is not all Americans who feel that way, just the elites that are part of the establishment that fully supports the “nonproliferation community.” They only fear other nations weapons, not their own or those of their “friends”.

      My evaluation of history is that scary weapons owned by both sides leads to increased respect, politeness and diplomacy. Believe it or not, but I am a career military officer who is also a strong peacenik.

    • Finrod says

      February 23, 2010 at 4:29 AM

      Is laser enrichment really so much more effective than regular enrichment in isotope seperation? The Pu isotopes in question are generaally only 1 amu difference in mass, so isotopic seperation is going to be inherently more difficult than U-235 enrichment no matter the technology.

  7. Steve Packard says

    March 19, 2010 at 1:57 AM

    If you have laser enrichment capabilities, why would you even bother enriching plutonium? The mass difference with uranium makes it the more effecient material to enrich. Also, it’s more easily handled because it’s less radioactive and it can be more easily made into a reliable weapon.

    The only big advantage to a fledgling weapons state from plutonium is you don’t need to enrich it (if you have a plutonium production reactor).

    Thanks for the kind words, Rod.

    @Pete: “The last paragraph of the essay is just one word: “Understand?” I wonder to whom the author might be addressing that question.”

    A little tongue-in-cheek frustration over the fact that this issue keeps getting rehashed over and over and no amount of explanation for why it’s a non-issue seems to get through.

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