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  1. #51
    Mustafa Umut Sarac's Avatar
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    I gave 20 years to zildjian to understand it.
    Now I am faster.
    I learned sem costs 200 dollars in Istanbul.
    I and researchers would not have any experience to do it to a film.
    You will tell me , I will tell them.
    What kind of SEM we have to use ? There are two types.
    Do we need to coat the sample ?
    How we will see the layers ? Do we have to cut the polaroid and look from the side or can we look from the top of the surface and see the layers ?
    Do we need darkness ?

  2. #52
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    You must dissolve the emulsion from the support by some means that does not destroy the emulsion and then you must make carbon replicas of the grains. The SEM photographs the carbon replicas. EDS done on the grains themselves will give elemental distribution. XRD will give more data on elemental composition depending on the angle of "view". These can all be done from 1 sample with a few sheets of film. I suggest Takamine to dissolve the gelatin, but beware that Takamine is very toxic and harmful to humans.

    PE

  3. #53
    Mustafa Umut Sarac's Avatar
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    Is there a paper or book on seperation of emulsion and making carbon replicas of the grains ?
    Do you want to tell me or do you have a friend at Kodak who can tell me ?

  4. #54
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    No, there is no text book and no, no one at Kodak would tell you, however this is not an unknown methodology to chemists. The problem is, having the information you intend to get, who will then make the emulsion for you and who will make the coatings and assemble the materials to produce the picture? This is an even bigger problem.

    PE

  5. #55
    Mustafa Umut Sarac's Avatar
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    I am not interested in making emulsion , I am interested in gathering information. I will learn many things from this research and this is better than sex for me

  6. #56

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    Quote Originally Posted by Mustafa Umut Sarac View Post
    I am not interested in making emulsion , I am interested in gathering information. I will learn many things from this research and this is better than sex for me
    So, how much are you willing to pay for a good time?

  7. #57
    Mustafa Umut Sarac's Avatar
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    I will pay all the analysis expenses . SEM cost 200 here and I think china can do cheaper better. Making carbon replicas is a thing I never heard.
    Ray , Can you say something for that ? May be biologists use these kind of copies ???
    Anyone who knows something about it ?

  8. #58
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    Hmmm I understood now. Samples would be needed to coated . Carbon coated in vacuum and than recorded !
    Is it correct ?

  9. #59
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    You would take existing film packs and analyze them.

    PE

  10. #60
    Mustafa Umut Sarac's Avatar
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    Ron , Istanbul University writes that carbon coating is used with x ray backscatter SEM research.
    What will researcher look to at this research with SEM ? Layers , their thicknesses ?
    Elektron Microprobe Analysis ? Do you want this ?



 

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