Sabine Hossenfelder holds forth on fusion and measures of break-even. Over a year old, but still.... http://backreaction.blogspot.com/2021/10/how-close-is-nuclear-fusion-power.html
On Tue, Dec 13, 2022 at 4:37 PM glen <geprope...@gmail.com> wrote: > 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 <geprope...@gmail.com <mailto: > geprope...@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. > > > -- > ꙮ Mɥǝu ǝlǝdɥɐuʇs ɟᴉƃɥʇ' ʇɥǝ ƃɹɐss snɟɟǝɹs˙ ꙮ > > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > FRIAM Applied Complexity Group listserv > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ >
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