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Is it possible to reflect x rays

  • 15-09-2010 10:31pm
    #1
    portumnadaz
    Closed Accounts Posts: 170 ✭✭


    I mean reflect not absorb.


Comments

  • #2
    portumnadaz
    Closed Accounts Posts: 170 ✭✭portumnadaz


    Did a bit of reading up but still not wise to whether its possible or not. The wave length of an x-ray is from 0.10 to 0.01 of a nm. What material can be constructed >0.01 nm using nano tools ?


  • #3
    FISMA
    Closed Accounts Posts: 2,616 ✭✭✭FISMA


    I guess it really depends on our definition of reflection.

    In optics, we speak of light reflecting off of a smooth, mirror like surface. There's even the law of reflection. We liken the collision to a basketball bouncing off a back board.

    However, that's not what is really going on when you get down to the quantum level. It is not as if a photon hits the surface and gets reflected.

    So are we looking at this problem from a macro point of view or are we going quantum?

    Are you just looking for something to stick in front of the x-ray machine and reflect the rays?


  • #4
    SkepticOne
    Closed Accounts Posts: 6,718 ✭✭✭SkepticOne


    I think we are talking about reflecting in such a way as to form an image.
    portumnadaz wrote: »
    Did a bit of reading up but still not wise to whether its possible or not. The wave length of an x-ray is from 0.10 to 0.01 of a nm. What material can be constructed >0.01 nm using nano tools ?
    Or bounce the x-rays at a very small grazing angle. This is what is done in X-ray telescopes such as Chandra.


  • #5
    El Siglo
    Registered Users, Registered Users 2 Posts: 3,803 ✭✭✭El Siglo


    X-ray diffraction, x-rays are fired at a sample (e.g. sand grains etc...) and the x-rays are scattered, the angle of scatter is determined and this will tell you what your material is. It's an over simplistic explanation but it's 25 past 1 and I've just finished writing my MSc thesis.


  • #6
    sonicthebadger*
    Registered Users, Registered Users 2 Posts: 446 ✭✭sonicthebadger*


    El Siglo wrote: »
    X-ray diffraction, x-rays are fired at a sample (e.g. sand grains etc...) and the x-rays are scattered, the angle of scatter is determined and this will tell you what your material is. It's an over simplistic explanation but it's 25 past 1 and I've just finished writing my MSc thesis.

    Congratulations! :pac:


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  • #7
    dirtyden
    Registered Users, Registered Users 2 Posts: 1,740 ✭✭✭dirtyden


    portumnadaz wrote: »
    I mean reflect not absorb.
    Simply, yes


  • #8
    pvt6zh395dqbrj
    Closed Accounts Posts: 183 ✭✭pvt6zh395dqbrj


    You sure can. There are things called Multi layer mirrors and also there are things called Fresnel Zone Plates. Also there are things called Kbo mirrors. They'll all do the job for you.

    What wavelength are you looking to reflect?


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