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Originally Posted by Anthony
Not very. Free-electron lasers are based on electron accelerators and the wavelength that can be generated depends on the per-particle energy.
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Did you mean to say they're not very
implausible or not very
plausible?
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The general problem is that you need a certain minimum length and/or radius for any given particle energy, and particle beam performance is heavily dependent on particle energy. This does plausibly vary with tech level, but there's a reason research particle accelerators have gotten bigger and bigger through the years.
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What's the relationship between minimum length and particle energy? As for radius, is that diameter of the circular accelerator?
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As long as they're based on accelerator technology, higher TL would reduce but not eliminate the limit.
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What's plausible for how much they'd shrink with TL? Going for -1 SM per TL seems like it might work.
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No, except maybe by coincidence.
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I assume grasers would be larger than X-ray lasers? How much bigger?