<div dir="ltr">Sabine Hossenfelder holds forth on fusion and measures of break-even. Over a year old, but still....<div><a href="http://backreaction.blogspot.com/2021/10/how-close-is-nuclear-fusion-power.html">http://backreaction.blogspot.com/2021/10/how-close-is-nuclear-fusion-power.html</a><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 13, 2022 at 4:37 PM glen <<a href="mailto:gepropella@gmail.com">gepropella@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">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?<br>
<br>
On 12/13/22 09:22, Frank Wimberly wrote:<br>
> DT = deuterium?<br>
> <br>
> ---<br>
> Frank C. Wimberly<br>
> 140 Calle Ojo Feliz,<br>
> Santa Fe, NM 87505<br>
> <br>
> 505 670-9918<br>
> Santa Fe, NM<br>
> <br>
> On Tue, Dec 13, 2022, 10:21 AM glen <<a href="mailto:gepropella@gmail.com" target="_blank">gepropella@gmail.com</a> <mailto:<a href="mailto:gepropella@gmail.com" target="_blank">gepropella@gmail.com</a>>> wrote:<br>
> <br>
> Awesome. Thanks. I'm still trying to catch up with the QC Wormhole kerfuffle. Who knew Quanta was so click baity?<br>
> <br>
> What is "DT"?<br>
> <br>
> On 12/13/22 09:02, Marcus Daniels wrote:<br>
> > In case no one wanted to get up at 7:00am to watch DOE administrators talk:<br>
> ><br>
> ><br>
> > 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.<br>
> ><br>
> > 2. 8% more power on the laser this time<br>
> ><br>
> > 3. x-ray tomography is used to find flaws in the capsules. Developing software to do the counting.<br>
> ><br>
> > 4. They have ongoing efforts to study the fabrication systems and their components (done in Germany) to find idiosyncrasies of each.<br>
> ><br>
> > 5. Laser technology improvements since NIF was built which are 20% more efficient.<br>
> ><br>
> > 6. Target cost is from labor, and it takes 7 months each<br>
> ><br>
> > 7. 4% of DT is burned in a shot<br>
> ><br>
> > 8. Machine learning ties together radiation hydrodynamics and experimental data. (It sounded preliminary.)<br>
> ><br>
> > 9. The (successful) capsule had more defects than previous experiments. However, previous experiments did show benefits from capsule quality.<br>
> ><br>
> > 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.<br>
> ><br>
> > 11. Anomalous laser directional control were problems in the summer runs. Fixed that.<br>
<br>
<br>
-- <br>
\ua66e M\u0265\u01ddu \u01ddl\u01ddd\u0265\u0250u\u0287s \u025f\u1d09\u0183\u0265\u0287' \u0287\u0265\u01dd \u0183\u0279\u0250ss sn\u025f\u025f\u01dd\u0279s\u02d9 \ua66e<br>
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