Fig. 3

The polarization (P) of 2.1 GeV/c stored protons plotted against the number of times (n) that they have flipped; the fit gives a measured spin-flip efficiency of 99.92%. The protons remain highly polarized after 51 flips.
International Journal of High-Energy Physics

The polarization (P) of 2.1 GeV/c stored protons plotted against the number of times (n) that they have flipped; the fit gives a measured spin-flip efficiency of 99.92%. The protons remain highly polarized after 51 flips.