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X-rays for telecommunications?

Discussion in 'Electronic Basics' started by Radium, Jun 15, 2006.

  1. Radium

    Radium Guest

    Hi:

    Has the use of x-rays for telecommuncations ever been considered? I
    imagine that x-ray photons would have more bandwidth than
    visible-spectrum photons. Other than bandwidth, are there any
    advantages to using x-rays instead of light. One major disadvantage, is
    the fact that x-rays could injure humans and possible some metal
    equipments by knocking electrons off the atoms -- one solution to this
    would be to use a lower rate of x-rays photons per second so that the
    amount of x-ray power* does not reach the danger level.


    Thanks,

    Radium


    *Power in this case define the amount of photons per second, not the
    amount of eV per photon
     
  2. Jasen Betts

    Jasen Betts Guest

    last I heard there were no high-bandwidth x-ray detectors
    and making optic fibres for them is a hassle

    x-ray telescopes were working by detecting the heat caused by the rays.

    I guess modulation won't be a problem but detectors could be,

    Bye.
    Jasen
     
  3. Greg Neill

    Greg Neill Guest

    There's no convenient way to generate, modulate, steer,
    or focus X-rays. X-rays are blocked by a few inches to
    a few feet of air, and don't work with the fiber optics.

    So I'd say that the disadvantages cuurnetly far outweigh
    any bandwidth considerations.
     
  4. tlbs101

    tlbs101 Guest

    Hi,

    Currently there is no method (except for a few lab experiments in the
    100+ GHz range) to modulate a source or stream of X-rays faster several
    10's of GHz, and those methods are applied to IR and visible LASERs,
    just fine. So it makes no sense to modulate X-rays, if high bandwidth
    comm. can be achieved using lower frequency photons.

    Tom
     
  5. Tim Williams

    Tim Williams Guest

    Well, if you'll read up on your highschool physics, you'll note that x-rays
    are considered ionizing radiation. They knock the electrons out of anything
    they touch, in the process giving up energy. A strong x-ray beam ought to
    make a good plasma when it hits air, the photons having energy corresponding
    to a neon sign transformer or so (depending on what part of the spectrum you
    grab).

    As mentioned, bandwidth is no damn where near the frequency of even THz
    waves, let alone IR or visible light, which travels easily through current
    technology. Ok, it's coming up on the lower THz, but not the upper THz
    (although to be fair, upper THz is just lower IR anyway).

    Tim
     
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