Wow, I knew this was possible (though I got a ton of crap for mentioning that on that other forum) but this is sure a nice implementation of the idea. Am I correct in supposing this only works with relatively slow neutrons (under 20 eV or so)? I don't have eV to angstroms in my head as a conversion. My books on "fast neutron physics" mention being able to do this up to about that energy with a tight-lattice xtal of LiF for example, but this is a much smarter way of going about it I think. Nice mechanical design. I guess this also implies that you could have a long beam pipe with low losses if it were made like this?
FWIW -- most Linux machines won't easily eat a filename with more than one period in it (implies an extension on an extension and/or a hidden system file) so I had to gyrate a bit to get this downloaded. Would you rename it for us? I can do it (logged in as owner), but I am morally opposed to editing other's posts in any way if there's not a need to.
Edit -- thanks for fixing the name, but I'll leave this up for others to note about strange filenames. It works fine now.
Here's the only other thing I've seen on directing neutrons. It somehow didn't turn me on much, but....maybe I missed something. It
does happen
The one you put up here -- does this imply that they made that thing out of all one orientation of crystal lattice to get total reflection (Bragg style)? If so, I'm
really impressed.
This seems to say that one might concentrate the neutrons from a source effectively so as to do better activation with less of a good source, does it not?
Posting as just me, not as the forum owner. Everything I say is "in my opinion" and YMMV -- which should go for everyone without saying.