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EUV light source generate plasma that is in the megakelvin range today for silicon lithography. It's obviously not the same and still cooler, but the assertion

by zbobet2012 4y ago

EUV light source generate plasma that is in the megakelvin range today for silicon lithography. It's obviously not the same and still cooler, but the assertion that we don't make use of highly energetic plasma is off. Secondly, your attempt at being pithy about nuclear bombs is a complete loss. We previously only knew how to achieve an inertial confinement based fusion reaction with a positive Q factor by first setting off a fission bomb, and this was only done for the neutron generation to increase the amount of fissionable material exploded (which is why they are called fission-fusion-fission bombs). We can now generate fusion energy in a way that is obviously confine-able. That's a major step, and it's not THAT hard to imagine many mechanisms of turning a hot droplet into energy. For example the hohlraum itself in an indirect system will obviously be heated by the reaction and could be used to generate steam. Engineering that makes no sense though if you can't get a high Q factor out of the ignition itself, hence the focus. This four sentence post is a perfect example of OP's point. No insight, no though process, just a pithy negative reply.

qayxc 4y ago
> EUV light source generate plasma that is in the megakelvin range today for silicon lithography. Only an order of magnitude off, but yeah, physicists and spherical cows and all that. > Secondly, your attempt at being pithy about nuclear bombs is a complete loss. A little sense of humour is lost on so many bitter souls these days, it's kind of sad. Lighten up, mate! > Engineering that makes no sense though if you can't get a high Q factor out of the ignition itself, hence the focus. You do realise that the fusion reaction we're talking about lasted for less than a trillionth of a second in a miniscule area, while other practical designs are aiming for continuous operation in the half hour range to examine practical engineering challenges of particular reactor configurations? A high Q-factor may be completely useless if the underlying concept doesn't work for actual power generation and one might be easier to achieve than the other (i.e. getting a continuously working reactor first and tweaking it to improve Qp). The question therefore becomes, what's the actual value of the result. The article doesn't even touch on that, while even some C-grade online publications provided context like that.

qayxc 4y ago

> EUV light source generate plasma that is in the megakelvin range today for silicon lithography. Only an order of magnitude off, but yeah, physicists and spherical cows and all that. > Secondly, your attempt at being pithy about nuclear bombs is a complete loss. A little sense of humour is lost on so many bitter souls these days, it's kind of sad. Lighten up, mate! > Engineering that makes no sense though if you can't get a high Q factor out of the ignition itself, hence the focus. You do realise that the fusion reaction we're talking about lasted for less than a trillionth of a second in a miniscule area, while other practical designs are aiming for continuous operation in the half hour range to examine practical engineering challenges of particular reactor configurations? A high Q-factor may be completely useless if the underlying concept doesn't work for actual power generation and one might be easier to achieve than the other (i.e. getting a continuously working reactor first and tweaking it to improve Qp). The question therefore becomes, what's the actual value of the result. The article doesn't even touch on that, while even some C-grade online publications provided context like that.