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. 2021 Aug 10;12:4805. doi: 10.1038/s41467-021-24920-0

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© The Author(s) 2021, corrected publication 2022

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Fig. 3 — The left plot shows the distribution of the track lengths of the protons. The right plot is the decay-time distribution obtained from the time difference measured between the ion stopping point and the proton track starting point. It is least-square fitted (black) with an exponential convoluted with a Gaussian function to account for the time-measurement resolution. The inlays of the left plot show the decay-time distributions of each proton group (blue online) compared to the total distribution (black).