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proton radioactivity

physics

Learn about this topic in these articles:

radioactivity types

  • decay of beryllium-7
    In radioactivity: Proton radioactivity

    Proton radioactivity, discovered in 1970, is exhibited by an excited isomeric state of cobalt-53, 53mCo, 1.5 percent of which emits protons:

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  • decay of beryllium-7
    In radioactivity: Special beta-decay processes

    In these cases, proton radiation appears with the half-life of the beta transition. The combination of high positron-decay energy and low proton-binding energy in the daughter ground state is required. In the example given below, tellurium-111 (111Te) yields antimony-111 (111Sb) and then tin-110 (110Sn) successively:

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