[FRIAM] technical notes on fusion announcement

[glen]

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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