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David Kirtley

๐Ÿ‘ค Speaker
See mentions of this person in podcasts
1578 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And so that's really fascinating that we've been able to push those boundaries.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

Yeah, each of the different simulations we analyze and use it to design different parts of the machine.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

So at the MHD level, where we actually have the circuit model, now our design team uses this to design the circuitry, where we're designing which capacitor to use, which switch to use, how many cables to use, literally to that level, how big of a cable to use.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

So as we're doing power plant designs right now, those are the tools we're using today, every day.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

The team is using...

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

Then you can go one level deeper and say, okay, let's use these more advanced computational tools about stability to say, okay, great, but I now know the circuitry, but let's look at the magnetic field topology.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

How do I design the magnet, the shape of the magnet exactly, the timing of the magnet exactly?

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

I have to trigger one magnet and the next magnet next to it and the next magnet next to it.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

How do I have that shape and that design?

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And so that's where you're using those more advanced tools.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

Now those, unfortunately, those are still,

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

too slow.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And so those simulations may take a day or two to run.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And so an operator right now does a lot of simulations ahead of time, then collects data through their operations of the machines, making these field reverse configurations, going through parameter sweeps.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And then the simulation team then goes back and looks at that data and compares it with simulations.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

I'm really excited about some of the things we're seeing in artificial intelligence and reinforced learning to be able to speed up that process.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And so we're watching and starting to work on that now of can we now, rather than using it where we use it today, where we...

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

do a simulation to design a machine or a test, run the test.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

And then over the next couple of days, compare the testing with the simulation and use that to inform what we're going to run for the next set of tests.

Lex Fridman Podcast
#485 โ€“ David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

But in fact, do it more real time where you're now an operator can pull up what the AI or what the machine learning would have predicted it should have done.