Originally Posted by
300EVIL
I understand that.... I meant the size of the plate. Looks lke they used a Krypton laser for that. I doubt a single he-ne would have the power for that exposure.
That sir, based on experience, would be a JK Lasers Ltd ruby, a oscillator with a etalon, pulse picked and Q-switched by a Pockels cell, and a amplifier stage or two. Had the pleasure of repairing a double pulse one used for breast cancer detection. Cap bank, on the one I worked on, is the size of 4 industrial steel storage cabinets. Spatial filter pinholes were gem grade diamond, and if misaligned the oscillator alone would ablate chunks of diamond. Rods were a good 6-8 inches long. One shot every 2-3 minutes.
I imagine they waited a hour between shots, and it would not shock me if the "bar" was in a coal mine or something. On the other hand, things don't move much in a millisecond.
Steve
Last edited by mixedgas; 08-09-2010 at 15:49.
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