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Two-proton radioactivity

Caught in the act

The newest form of radioactivity, two-proton decay, has been imaged directly using an optical time-projection chamber. The protons are emitted in a way that reflects the internal dynamics of the parent nucleus.

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Figure 1: Two-proton decay from 45Fe.


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Walker, P., Johnson, R. Caught in the act. Nature Phys 3, 836–837 (2007).

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