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I Helium Ion collision with diamond wafer

  1. Aug 12, 2016 #1
    If a Helium ion He+ collides with a diamond wafer surface, an insulator, does the Helium ion, at 25 deg C,
    will the ion lose it's charge by gaining an electron from the insulative surface or does the ion have an elastic collision with no net energy loss or gain?
  2. jcsd
  3. Aug 12, 2016 #2


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    Freshly cleaved diamond?
  4. Aug 12, 2016 #3
    The diamond wafer surface is chemical vapour deposited CVD onto a conducting surface probably copper.
  5. Aug 12, 2016 #4


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    ... and, "Up jumps the devil."
  6. Aug 30, 2016 #5


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    Thread difficulty level changed from "A" (graduate school) to "I" (undergraduate).
  7. Aug 31, 2016 #6
    I appreciate that you have chosen to change thread difficulty.
    Separate to the physics forum on this particular question the answers per level of education have been as follows:

    1/ Particle Physicist, MSC, collisions elastic.
    2/ Physicist, mathematician, BSc, collisions elastic.
    3/ Physicist,Ukrainian Professor, collisions elastic.
    4/ Nuclear Physicist, PhD, German elastic.
    5/ Australian Professor, ANSTO, initial consideration elastic, then changed to inelastic.

    Accordingly, I wonder whether an undergraduate would be able to answer the question.

  8. Aug 31, 2016 #7


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    There is a third option that both processes are possible.
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