I think I might be in favor of crystal diffraction

Space/Science » in reply to What about Compton effect, inelastic scattering, crystal diffraction? Can any of these be controlled to achieve a desired 'bending' of a beam?

SDF — 11/22/2005 2:24:33 PM (archived)

On macroscopic scales, a fresnel plate is a series of concentric rings cut out of an opaque plate. The interference pattern of a beam of light created by this set of diffraction gratings will behave like a lens, focussing it much like a real lens.

I believe crystal structures have been used to generate diffraction patterns from gamma ray beams. It would be some super nano-fabrication to create a fresnel plate lens for a gamma ray beam, but my instinct is telling me it might be a very cool idea.

The whole thread (15 posts)

Fusion by 2048 - Adam - 11/19/2005 12:10:06 PM
- I was kindof disturbed by the disposal of 30,000 tonnes of activated reactor structure after decommissioning - SDF - 11/19/2005 1:25:48 PM
  - Millions of tonnes of fission waste??? - Adam - 11/19/2005 11:34:42 PM
    - Actually hundreds of millions of tonnes of fission waste - SDF - 11/20/2005 3:58:14 PM
      - Waste from uranium mining is less radioactive than it was when it was in the ground. (n/t) - Tom Brosz - 11/21/2005 5:59:30 PM
        
        Waste from uranium mining gives off radon gas which is hazardous if it builds up in confined spaces (n/t) - SDF - 11/22/2005 3:48:16 PM
        
        gee... radon gets released naturally too (n/t) - Adam - 11/23/2005 11:15:59 AM
        
        True, but since we know where the uranium tail millings are, we are inclined not to build there, whereas landfills are often covered over and built on (n/t) - SDF - 11/23/2005 2:38:46 PM
      - Actually hundreds of millions of tonnes of *radio* waste - Adam - 11/20/2005 11:28:55 PM
        
        A question 'out of the blue' for anyone capable of answering - SDF - 11/21/2005 1:44:50 PM
        
        Low angle of incidence lenses - Adam - 11/21/2005 8:53:15 PM
        
        What about Compton effect, inelastic scattering, crystal diffraction? Can any of these be controlled to achieve a desired 'bending' of a beam? (n/t) - SDF - 11/22/2005 2:19:18 PM
        
        I think I might be in favor of crystal diffraction - SDF - 11/22/2005 2:24:33 PM
        
        Yep. X-Ray diffraction, Neat-oh. - SDF - 11/22/2005 2:45:03 PM
        
        gravitational lensing would do it - Daniel - 11/21/2005 4:16:28 PM

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