Fig 1.
Schematic of the experimental procedure.
Fig 2.
Microscope images of cells and emitted α-tracks from those cells on aCR-39 detector.
A) Cells and B) corresponding α-tracks. A dot arrow indicates that no α-tracks are observed in the corresponding cell position. The enlarged images of C) cells and D) α-tracks recognized by ellipse fitting result are inset by the colored circles.
Fig 3.
Scatter plots and contour maps of cells and α-tracks positions.
Scatter plots of the positions of A) cells and B) α-tracks over the entire surface of the CR-39 detector and C) their overlay, respectively. The macroscopic autoradiography as a contour map by counting the number of D) cells and E) α-tracks in binned positions (Δx, Δy) with 200 μm intervals.
Fig 4.
The number of cells Ncell vs. α-tracks (Nα) and α-particles ().
A) The observed number of α-tracks (Nα) emitted from single cells and B) the estimated number of α-particles () corrected with solid angular and critical angular dependencies.
Fig 5.
LET spectrum of α-particles from single cells.