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B Antimatter Creation

  1. Sep 12, 2017 #1
    Hello,
    I have read that Michio Kaku has made antimatter and photographed it when he was only a high schooler. I have read that the used Sodium-22 to produce positrons. How does that happen? I could not find some good sources of answers...
    Thanks.
     
  2. jcsd
  3. Sep 12, 2017 #2

    mfb

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    Where? It is hard to tell what exactly the source said without seeing the source.

    Sodium-22 undergoes beta+ decay, which means it emits positrons. You don't have to do anything, you just have to find a way to get enough sodium-22. You cannot really photograph these positrons, directly, but you can let them produce tracks in detectors (e. g. cloud chambers) and take a picture of these tracks.
     
  4. Sep 12, 2017 #3

    vanhees71

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    Indeed, the most interesting question is, where I high schooler could get sodium-22? Nowadays the safety guidelines at highschools even under supervision of a teacher are such that it is almost impossible for the students to make interesting experiments (at least in Germany). I cannot imagine that it is allowed to handle even harmless portions of any radioactive material...:frown:
     
  5. Sep 12, 2017 #4

    Bandersnatch

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  6. Sep 12, 2017 #5

    vanhees71

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    LOL:biggrin:. When was this?
     
  7. Sep 12, 2017 #6

    mfb

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    Born 1947, so around 1965 I guess.
     
  8. Sep 12, 2017 #7
    He said he went to a local nuclear research company...
     
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