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>economically viable

IIRC EUV development picked plasma over synchrotron because plasma projected to be cheaper, even though technically synchrotron had more benefits. Queue many, many years of solving for technical challenges for LPP and now commercialized EUV machines cost 200m, 400m for next high NA. Which is about the cost of multiple small or single medium size synchrotron facility. It's amazing plasma EUV works, but it's also a failure in the sense that it is FAR less economical than originally envisioned, which explains why particle accelerator route is still being worked on.



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