Talk:Shiva laser
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[edit] Some misconceptions I removed
Shiva, like all large ICF lasers now (probably) used A regen amp. but not for the main amplifier chains. the regen is used to create the seed pulse only. The beamlines on shiva were single pass only. all ICF lasers up until NIF used the single passthrough beamline architecture. there are no reflecting cavities or multipass beams except on the NIF beamlet and on NIF itself. also shiva didn't compress liquid hydrogen. it compressed dt gas to equivalent liquid hydrogen densities. also it is important to understand that it is not the shockwave alone which is launched into the target that is noteworthy but the tremendous "shove" of compression from ablation which achieves the high densities. the shockwave and the compression should be thought of as separate. this is where the work on "shock-to-bang timing" comes in. it should also be understood that the term spatial filter means litteraly the whole assembly of a pipe. that is a big pipe with a lens on the end that focuses light down through a tiny pinhole at the center of the pipe where it expands outward again to be collimated by another lens at the opposite end of the pipe. --Deglr6328 06:01, 7 October 2006 (UTC)
