[FRIAM] technical notes on fusion announcement

[glen]

That's why I asked. I guess I'll assume DT means both deuterium and tritium, not just deuterium. If you were going to track fuel use, you'd track the rarer part more closely, right?

On 12/13/22 09:22, Frank Wimberly wrote:
> DT = deuterium?
> 
> ---
> Frank C. Wimberly
> 140 Calle Ojo Feliz,
> Santa Fe, NM 87505
> 
> 505 670-9918
> Santa Fe, NM
> 
> On Tue, Dec 13, 2022, 10:21 AM glen <gepropella at gmail.com <mailto:gepropella at gmail.com>> wrote:
> 
>     Awesome. Thanks. I'm still trying to catch up with the QC Wormhole kerfuffle. Who knew Quanta was so click baity?
> 
>     What is "DT"?
> 
>     On 12/13/22 09:02, Marcus Daniels wrote:
>      > In case no one wanted to get up at 7:00am to watch DOE administrators talk:
>      >
>      >
>      > 1. Controlling the laser in space and time was important for maintaining symmetry.  Timing precision of 25e-12 secs and laser spatial precision of 5e-12 meter were needed.  This was thought to be the main explanation for the achievement.
>      >
>      > 2. 8% more power on the laser this time
>      >
>      > 3. x-ray tomography is used to find flaws in the capsules.  Developing software to do the counting.
>      >
>      > 4. They have ongoing efforts to study the fabrication systems and their components (done in Germany) to find idiosyncrasies of each.
>      >
>      > 5. Laser technology improvements since NIF was built which are 20% more efficient.
>      >
>      > 6. Target cost is from labor, and it takes 7 months each
>      >
>      > 7. 4% of DT is burned in a shot
>      >
>      > 8. Machine learning ties together radiation hydrodynamics and experimental data.   (It sounded preliminary.)
>      >
>      > 9. The (successful) capsule had more defects than previous experiments.   However, previous experiments did show benefits from capsule quality.
>      >
>      > 10. 15% of experiments are indirect drive of this kind, 15% of experiments are other approaches to ignition.  The rest are weapons and materials characterization.
>      >
>      > 11. Anomalous laser directional control were problems in the summer runs.   Fixed that.


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