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Stripping a neutron from an atom

  1. Apr 16, 2012 #1
    How do you strip a neutron from a particle? Thanks
  2. jcsd
  3. Apr 16, 2012 #2


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    Well, a neutron is considered a particle. A proton, deuteron, triton, or He nucleus (alpha particle) are considered particles.

    What particle did on have in mind?

    Neutrons can be removed from nuclei by interaction with gamma ray of appropriate energy. If a gamma ray of energy > ~2.22 MeV interacts with deuteron, the neutron and proton may part in a reaction known a photodissociation. Otherwise, if a sufficiently energetic gamma photon cause a neutron to be ejected from a nucleus, the reaction is termed 'photo-emission'.

    Some fusion reactions also release neutrons, e.g., d+t => α + n, or d+d => He-3 + n (~50%).

    Some nuclear reactions may result in the release of neutrons, e.g., a highly energetic proton or neutron can knock a neutron out of an atom. The reaction is term spallation.
  4. Apr 16, 2012 #3
    A common portable laboratory source of neutrons is a mixture of an alpha emitter and beryllium: a fine powder mixture of plutonium and beryllium (PuBe) or americium and beryllium (AmBe). The absolute yield is in the range of 50 neutrons per million alphas. See http://prola.aps.org/abstract/PR/v98/i3/p740_1
  5. Apr 17, 2012 #4
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