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  1. #1

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    High speed x-ray processing - how does it work?

    I've read many descriptions of X-Ray processors that produce images in just a few minutes - some are very fast...
    Konica Minolta SRX-101A produces images in 90 seconds.
    http://www.konicaminolta.com/healthc...analogue/xray/

    How does that work? Even if I have a Super developer, how can the fixer get washed off so quickly?
    X-rays are archival - so something tricky must be going on...
    Any ideas?
    I am mostly interested in the fixing and washing of the film. Does x-ray film not absorb the fixer (similar to RC paper?) - I am wanting to speed up my process...

  2. #2
    richard ide's Avatar
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    Some films have developing agents incorporated in the emulsion. I remember using a film which developed completely in less than 1 second. Processors usually use elevated temperatures. My 49" processor would deliver a dry print or film in about that length of time. Thirty years later there is no sign of deterioration of image.
    Richard

    Why are there no speaker jacks on a stereo camera?

  3. #3

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    Quote Originally Posted by mkillmer View Post
    X-rays are archival
    Not really - most have a very limited lifetime and are then sent to Ag recovery.

  4. #4

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    High temperatures, very high concentrations. Atleast in that machine that I saw in action. The smell of chemicals was both warm and nauseating. Took 2 minutes to spit out the film from the other end.

  5. #5

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    Quote Originally Posted by Prof_Pixel View Post
    Not really - most have a very limited lifetime and are then sent to Ag recovery.
    Hmmm.... not sure about that.

    X-Rays are viewed as stable and permanent records. My wife commonly works with x-rays from 40 years ago.

  6. #6
    AgX
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    The Rapidoprint System (graphic films and papers) took only 75sec for exposed film to come out as developed, dry film (dev/fix/wash/wash/dry).

  7. #7

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    Quote Originally Posted by VPooler View Post
    High temperatures, very high concentrations. Atleast in that machine that I saw in action. The smell of chemicals was both warm and nauseating. Took 2 minutes to spit out the film from the other end.
    I assumed something like this - do you know about washing process? Is the film base made of a different material to "normal" film? I'm curious how they can be washed so quickly.

  8. #8
    AgX
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    Alternatively there are washless systems that change the unexposed halide into quite stable compounds instead of emoving them.

  9. #9
    ic-racer's Avatar
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    Quote Originally Posted by mkillmer View Post
    X-rays are archival -
    Not sure which country you refer to. In USA it varies from state to state. Typically 5 to 7 years then recycle for silver.

  10. #10

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    Quote Originally Posted by mkillmer View Post
    Hmmm.... not sure about that.

    X-Rays are viewed as stable and permanent records. My wife commonly works with x-rays from 40 years ago.
    ahh... 40 years ago - things were different.

    I'm sure hospitals have x-ray labs that have more archival processes (lots of x-rays today are digital), but some places (like urgent care) need fast, simple processing.

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