Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror
×
Power Science Technology

Radical Hydrogen-Boron Reactor Leapfrogs Current Nuclear Fusion Tech (newatlas.com) 185

HB11 Energy, a spin-out company originating at the University of New South Wales, claims its hydrogen-boron fusion technology is already working a billion times better than expected. Along with this announcement, the company also announced a swag of patents through Japan, China and the USA protecting its unique approach to fusion energy generation. New Atlas reports: The results of decades of research by Emeritus Professor Heinrich Hora, HB11's approach to fusion does away with rare, radioactive and difficult fuels like tritium altogether -- as well as those incredibly high temperatures. Instead, it uses plentiful hydrogen and boron B-11, employing the precise application of some very special lasers to start the fusion reaction. Here's how HB11 describes its "deceptively simple" approach: the design is "a largely empty metal sphere, where a modestly sized HB11 fuel pellet is held in the center, with apertures on different sides for the two lasers. One laser establishes the magnetic containment field for the plasma and the second laser triggers the 'avalanche' fusion chain reaction. The alpha particles generated by the reaction would create an electrical flow that can be channeled almost directly into an existing power grid with no need for a heat exchanger or steam turbine generator."

HB11's Managing Director Dr. Warren McKenzie clarifies over the phone: "A lot of fusion experiments are using the lasers to heat things up to crazy temperatures -- we're not. We're using the laser to massively accelerate the hydrogen through the boron sample using non-linear forced. You could say we're using the hydrogen as a dart, and hoping to hit a boron , and if we hit one, we can start a fusion reaction. That's the essence of it. If you've got a scientific appreciation of temperature, it's essentially the speed of atoms moving around. Creating fusion using temperature is essentially randomly moving atoms around, and hoping they'll hit one another, our approach is much more precise." He continues: "The hydrogen/boron fusion creates a couple of helium atoms. They're naked heliums, they don't have electrons, so they have a positive charge. We just have to collect that charge. Essentially, the lack of electrons is a product of the reaction and it directly creates the current."

The lasers themselves rely upon cutting-edge "Chirped Pulse Amplification" technology, the development of which won its inventors the 2018 Nobel prize in Physics. Much smaller and simpler than any of the high-temperature fusion generators, HB11 says its generators would be compact, clean and safe enough to build in urban environments. There's no nuclear waste involved, no superheated steam, and no chance of a meltdown. "This is brand new," Professor Hora tells us. "10-petawatt power laser pulses. It's been shown that you can create fusion conditions without hundreds of millions of degrees. This is completely new knowledge. I've been working on how to accomplish this for more than 40 years. It's a unique result. Now we have to convince the fusion people -- it works better than the present day hundred million degree thermal equilibrium generators. We have something new at hand to make a drastic change in the whole situation. A substitute for carbon as our energy source. A radical new situation and a new hope for energy and the climate."

This discussion has been archived. No new comments can be posted.

Radical Hydrogen-Boron Reactor Leapfrogs Current Nuclear Fusion Tech

Comments Filter:
  • Geez, THAT guy is still around? I remember when he was trying to sell this stuff to Jimmy Carter.

  • by AndyKron ( 937105 ) on Friday February 21, 2020 @09:19PM (#59752988)
    It's amazing that the tens of thousands of scientists working of fusion over the years haven't thought of this yet. Will this be able to power a Moller Skycar?
    • by 110010001000 ( 697113 ) on Friday February 21, 2020 @09:25PM (#59753004) Homepage Journal

      They did think of this, but dismissed it. This guy has been selling the idea laser fusion for literally 40 years now. Not sure why this is coming out now (again). They talked about this exact approach (CPA) over three years ago. Must be needing a new funding round.

      • by Ungrounded Lightning ( 62228 ) on Friday February 21, 2020 @11:41PM (#59753338) Journal

        They talked about this exact approach (CPA) over three years ago. Must be needing a new funding round.

        Or maybe they got the machine built and it worked? That would be nice.

        They claim that, by using a fast, tuned, laser pulse to swat the protons into and through the boron lump (rather than just heating the pellet until the surface vaporizes and the reaction squeezes the remainder into a tiny ball for a tiny fraction of a second) they can get an avalanche going in the ball (where the flying alpha particles bash more protons and borons together), for a nine-orders-of-magnitude improvement over "ordinary" laser-initiated inertial-confinement schemes like the Ignition Facility at Livermore.

        If it works you're practically done. Get some p + B11 fusion going in the middle of a vacuum chamber and nearly all the fusion energy appears as kinetic energy of the helium nuclei flying away. Just collect it as DC with a few electrodes (at about a megavolt).

      • The difference is that now, laser technology has advanced to the point you need for this type of fusion to work.

    • How is this fusion? (Score:5, Interesting)

      by altnuc ( 849387 ) on Friday February 21, 2020 @10:08PM (#59753124)
      How is this fusion? You are taking a large isotope (boron) and splitting it into alpha particles. This sounds more like radioactive decay, or fission, than fusion. In addition, the amount of energy released per reaction is fairly small (8.7 MeV per Wikipedia article) and you need to power the lasers, so how far from break even are they? (the article conveniently leaves this out)
      • by fahrbot-bot ( 874524 ) on Friday February 21, 2020 @10:23PM (#59753162)

        ... the amount of energy released per reaction is fairly small (8.7 MeV per Wikipedia article) ...

        I'm unfamiliar with this unit of energy "Wikipedia article". Is there a Energy -> Mass conversion to Library of Congresses?

        • Damnit, you beat me to it. :o)

          But GP is correct, there is a lot of essential information left out of that article.
        • For non-English speakers or those who haven'read a lot of pretentious writing, there is a missing comma, it should say "8.7 MeV, as per Wikipedia article". It means "according to the Wikipedia article".

          Your interpretation is reasonable due to the missing comma, and is admittedly much funnier.

        • First they wanted me to donate cash, now they want 8.7 MeV per Wikipedia article....
        • by Guignol ( 159087 )
          It's not a unit of energy, look at the equation again, clearly, the Wikipedia article is a unit of reaction ^^
      • How is this fusion? You are taking a large isotope (boron) and splitting it into alpha particles. This sounds more like radioactive decay, or fission, than fusion.

        If this works it would fuse hydrogen with boron to create an unstable isotope of carbon that very quickly splits into three helium nuclei. Strictly speaking it's a fusion-fission reaction.

        The idea isn't new.

      • by Ungrounded Lightning ( 62228 ) on Friday February 21, 2020 @11:24PM (#59753302) Journal

        How is this fusion?

        Boron 11 (5 protons, 6 neutrons) and Hydrogen 1 (a bare proton) fuse to form Carbon 12. This is the fusion reaction - the one difficult part of the process.

        Carbon 12 is the commonest carbon isotope (98.93% of natural carbon). Normally it's rock-stable. But the newly fused nucleus is in an excited state. It quickly (at nuclear reaction time scales) springs apart into a Helium 4, a Beryllium 8. The Beryllium 8 then (also nuclear-reaction fast) springs apart into two more Helium 4s.

        The flying Helium 4s share 8.7 MeV of energy as kinetic energy. The first one comes off with a well defined fraction of that energy. The other two split apart carrying the rest - but its distribution between the two varies somewhat, depending on the angle of their split versus their line of flight.

        Nevertheless, you can collect something near 90% of the fusion energy as DC electricity, just by decelerating the flying helium nuclei with positively charged electrodes and then letting them grab electrons from the electrodes (at positive voltages in the ballpark of DC interstate transmission lines) and wander away as helium gas. From there it's stock electronics to shove it into the grid or otherwise make use of it. (You can scavenge much of the rest of the energy, too, if you're ambitious.)

        • by drnb ( 2434720 )
          Be nice if we could capture the He. I hear we are running low. Or is the He generated an insignificant quantity?
        • I have always had this problem with nuclear power, all this massive equipment and highly radioactive material to make what... fucking steam, like in 18th century James Watt steam. There had to be a better way to get the energy out of a reactor, and just maybe, these guys might have cracked it.

          • p-B fusion is an old idea - almost as old as fusion itself. In fact it's long been the holy grail of fusion energy dreams precisely because it's both aneutronic and heavily symmetrical, making conversion to electricity easy.

            The downside is the fusion cross section is a few orders of magnitude smaller than deutrium fusion and other such "easy" reactions, which means the energy levels have to be dramatically higher to trigger the reaction.

            Nevertheless, Dr. Bussard's Polywell team successfully demonstrated p

      • by ceoyoyo ( 59147 )

        It's not that simple. You're taking a proton and inserting it into a boron nucleus. That nucleus then falls apart because it would rather be two heliums.

      • How much is that in lightnings per Libraries of Congress?
    • They're going to call it Mr Fusion. It's a bit too large for compact cars, but it would probably fit a De Lorean, say.

    • by Ungrounded Lightning ( 62228 ) on Friday February 21, 2020 @11:52PM (#59753364) Journal

      It's amazing that the tens of thousands of scientists working of fusion over the years haven't thought of this yet.

      p + B11 fusion is hard. It takes about ten times the ignition energy of d + t and runs about a third as fast.

      Lots of people are working on getting it to happen right now - and have been for decades. This guy happens to be the one who's using very energetic, very short, laser pulses to swat protons into/through a hydrogen/beryillium ball.

      The laser trick to focus all the energy into a very short, very powerful, pulse is just getting perfected. The next generation of the devices is expected to be powerful enough to break down the vacuum into electron-positron pairs (which is about as energetic as you can get with light, because it turns into particles when the electric field gets that strong.) So this is about the right time for such lasers to also be powerful enough to try igniting p + B11.

    • by TomGreenhaw ( 929233 ) on Saturday February 22, 2020 @09:03AM (#59753998)
      They did think of this, but some key pieces of the puzzle were missing.

      We have recently learned how to use lasers to accelerate particles approaching the speed of light. Neither the knowledge of how to build the lasers needed nor technique for acceleration was available until recently.

      Its pretty cleat that commercial fusion power generation is at hand, and yes, some reactor designs will be small and efficient for homes and vehicles.

      The interesting idea known for a long time is that the deuterium - boron nuclear reaction yields alpha particles which means direct electrical generation. Unlike deuterium - deuterium or deuterium - tritium reactions there is no need for lots of heat and turbine driven generators.
      • I wish I could edit my post. Its been a while since I looked and fuel for aneutronic reaction with Boron11 is hydrogen, not deuterium. On the plus side hydrogen and boron11 is plentiful. Most other aneutronic reaction candidates use rare isotopes.

        Temperatures needed for this reaction are unrealistically high, so a random heat brute force reactor is easily dismissed, We can't even do that with deuterium - tritium which requires temperatures 10 times lower.

        However focused relativistic beams of hydrogen io
  • I will think about believing it when someone else duplicates the results. Preferably serveral someones, and better yet, someone with both reputation and pedigree.

    Let us not have a repeat of cold fusion. (Though the Val Kilmer's The Saint, 1997, was a good movie, that was fiction.)
    • Comment removed based on user account deletion
    • I will think about believing it when someone else duplicates the results. Preferably several someones, and better yet, someone with both reputation and pedigree.

      Fine with me. I'll wait and see what Greta has to say about all this . . .

      • by drnb ( 2434720 )

        I will think about believing it when someone else duplicates the results. Preferably several someones, and better yet, someone with both reputation and pedigree.

        Fine with me. I'll wait and see what Greta has to say about all this . . .

        "Nuklear bad"

      • “How dare you”
        • Regarding your tag line, I liked it better as "If builders built buildings the way programmers write programs, the first woodpecker that came along would destroy civilization". (smile)

    • And right so. That's how science works, nothing special about this.
      This is in a research state. It's has to be proven and improved. Normally some hurdles will be found and a way must be found to take them. Many times one of the hurdles is killing it before it turns into an actual product, although this one sounds very promising regarding that.
  • by gurps_npc ( 621217 ) on Friday February 21, 2020 @09:37PM (#59753040) Homepage

    That is far more important than (or rather explains) the huge efficiency increase.

    All nuclear (and fossil fuel) power plants are really just a steam engine connected to heat source. Some theoretical stuff use a heat exchanger, but most do not because they are inefficient.

    All power plants except for solar photovoltaic use rotating magnets to produce electricity. This technique claims to avoid all that, acting more like solar power than anything else.
    .
    The direct conversion of any other kind of energy to electricity is a huge innovation, on par with discovering how to make an electric light. It is a major breakthrough that will change the world.

  • Comment removed (Score:4, Insightful)

    by account_deleted ( 4530225 ) on Friday February 21, 2020 @09:39PM (#59753052)
    Comment removed based on user account deletion
    • I believe it already. I just ordered a modestly sized HB11 fuel pellet to try it out for myself.

    • by ceoyoyo ( 59147 )

      Sure, it would be great. Problem is, it doesn't make sense. The article (and quote from the article in the summary) is pretty much babble.

      But the big thing: why Boron? Helium3 is easiest for this trick. Okay, fair, it's rare, but presumably if you were serious about this, you'd show it works in the easy case first. Second and third easiest is Lithium (six and seven). It's not rare. You'd *definitely* get it working with Lithium first, before moving on to Boron.

      • by Invidious ( 106932 ) on Saturday February 22, 2020 @06:43PM (#59755348)

        Boron-proton fusion is a well-known fusion path. It just hasn't really been tackled previously because of the high energies needed. But in your assessment I think you're neglecting one of the really huge advantages of this fusion path -- it creates -no neutrons-. AFAIK all of the other lighter-element fusion paths do.

        There're a few reasons why this is important.

        One is that the shielding required is almost nil. You can have a spectacularly radioactive alpha source behind a few sheets of paper and practically nothing will get through.

        Another is that there aren't any side-reactions. The vessel that you fuse in doesn't get radioactive, itself. In theory you could a PBe fusor open right after it's done, let it air out a bit, and then walk through it unprotected. A tokomak that's been running, on the other hand, will build up a supply of radioisotopes within the substance of its construction the more it's used.

        This also has positive implications for the durability of the vessel. You don't have to worry about it breaking because some of it's been transformed into something else.

  • by joe_frisch ( 1366229 ) on Friday February 21, 2020 @09:44PM (#59753072)

    When your theoretical predictions are wrong by a factor of a billion, that isn't a *good* thing. It means either your theory or your experiment is completely wrong so any future predictions are worthless.

    You can do beam fusion - where a beam of atoms is directed at a target and some fuse. Works for Deuterium on deuterium, deuterium on tritium works very well - is used in commercial high energy neutron sources. Hydrogen on boron would certainly work to cause *some* fusions.

    Meanwhile laser driven accelerators are a known technology. Not a lot of applications (for detailed technical reasons) but they do work.

    The problem with beam / collision fusion is that the cross section is so small that you don't end up generating net energy. Not insanely far off, but too far for even a 100% efficient accelerator to work.

    There is probably no practical way to "aim" the beam at the nucleus - the target is too small for any technology anyone has imagined. (but not fundamentally impossible as far as I know).

    So it sounds like they built a beam driven fusion machine using a laser accelerator to generate the beam. It worked better than their (obviously badly flawed) predictions, but that doesn't mean it works well enough. Unless they can somehow aim the particles, I don't see any hope for breakeven.

    Waiting now for someone to say its "quantum"......

    • My guess is it uses quantum entanglement to double the output.

    • Under the intense field the protons are going to oscillate back and forth under the optical electric field - note, the electrons will do this even more, as they are ~ 1/2000 as massive. With a beam, you only interact once, here the protons may interact for the lifetime of the pulse - which is very short. The question is the fusion yield vs the energy needed to drive the field. Muon catalyzed fusion worked very well - but the cost to create the muons was too high.

      • by joe_frisch ( 1366229 ) on Friday February 21, 2020 @10:17PM (#59753146)

        The problem is that when the beam particle and target get close but not close enough for fusion, the particle is deflected. Very quickly what started as a beam becomes basically a hot plasma with the particles moving randomly, The laser can keep adding energy but its a lot like a plasma fusion machine then.

        Its the same limit for farnsworth fusors. The (very clever) design attempts to recirculate the fairly high energy beam particles (usually Deuterons) but the scattering quickly makes the motion random.

        I think there has been a lot of work put into this type of fusion concept, but the math is pretty straigthforward and as far as I know, it never gets near breakeven. (other than by making a huge high temperature machine that is really a plasma machine).

        The tri alpha colliding plasma machine has the same issues. Initially the motion is fairly linear, but it quickly scatters into random. I can't do the calculation myself, but I think I remember a study from one of the national labs where they concluded that it wasn't much better.

    • Unless they can somehow aim the particles, I don't see any hope for breakeven.

      And to be clear they are not claiming breakeven:

      This cascading avalanche of reactions is an essential step toward the ultimate goal: reaping far more energy from the reaction than you put in. The extraordinary early results lead HB11 to believe the company "stands a high chance of reaching the goal of net energy gain well ahead of other groups."
      ...
      Dr McKenzie won't however, be drawn on how long it'll be before the hydrogen-bor

  • a new hope for energy and the climate.

    Prioritized slightly lower than enforcing their patent rights on anyone else attempting to use it to save the planet, naturally.

  • Aneutronic fusion (Score:5, Interesting)

    by manu0601 ( 2221348 ) on Friday February 21, 2020 @09:47PM (#59753080)

    Neutrons are the bane of nuclear reactors. Since they have no charge, we cannot confine them using electromagnetic fields, which means they are free to run amok and damage the surrounding structures.

    Boron+hydrogen is great because it does not produce neutrons. The reaction just produces alpha particles (aka helium nucleus).

    More on aneutronnic fusion at Wikipedia [wikipedia.org]

    • B-H fusion is great - its just substantially more difficult than D-T fusion because the higher charge of the Boron atom makes the fusion barrier higher. That makes it even more difficult to get to breakeven

  • If this is real, it's incredibly important. However, and notably, they don't publicize efficiency numbers, something that, if this were close to real, they'd be trumpeting to the sky. As such, I'm still skeptical. I can too easily see this being just a pitch for additional funding.

    In short, show me a reactor that actually produces energy.

  • No high temp needed? So is it some sort of cold fusion?
  • by hdyoung ( 5182939 ) on Saturday February 22, 2020 @12:10AM (#59753398)
    Publish it. Demonstrate it, publish your results, and submit it to scientific peer review. You want to patent it first, fine. If it actually works you'll be a billionaire many times over.

    This sounds a LOT like cold fusion. We've been here before. Prove it. Prove it, and prove it again. Until then, it's just a claim.
  • I'm not into nuclear physics enough to disprove the claim that they are generating alpha-radiation. Hmm. Firing hydrogen (mass 1) into boron 11 (atom number 5, mass 11) and getting 3* He2+ sounds possible on a counting-particles basis. (If you're getting alpha particles it sounds as if you're doing fission and not fusion. And with these atoms that's likely to COST energy instead of produce it!). .... I did some calculations... This reaction does produce energy. on the order of 8Mev, but this is totally out

  • It would be a leap frogging of other technology if it actually hit a breakeven point, but this is just a push to draw in funding.

  • by BAReFO0t ( 6240524 ) on Saturday February 22, 2020 @10:17AM (#59754160)

    First of all... This is government-financed research, isn't it?
    So it belongs to the people of the UK, and you can fuck off with your greedy greasy paws, right?

    Secon of all, we already have a much better fusion reactor. You might have seen it at day, outside, in the sky!

    This here might indeed be a fun thing.
    But it's yet another tech depending on (relatively) short-term resources and (!) dependence on a corporation. Which of course will be you.

    If you actually gave a fuck about humanity, you'd have invented it with the sole purpose of improving humanity and hence for everyone to enjoy it. That't make you an actual hero. Not a business thug.

    (Ignore all this, if I misread, and they indeed plan for everyone to benefit from this.)

Whoever dies with the most toys wins.

Working...