Hamamatsu R5900U-00-L16 multianode photomultiplier tube.
Optical layout of the diagnostics. The lens sets up a beam image on the MAPMT photocathode.
Block diagram of the FPM electronics.
Example of the single-measured beam profile with the Gaussian fit.
Spectra of beam oscillation measured by the FPM and by the BPM. , .
Measured signal-to-noise ratio of the FPM and the BPM.
Betatron oscillation chromatic decoherence. Oscillations of the beam center of mass and beam size are shown.
Betatron oscillation decoherence due to the cubic nonlinearity. Oscillations of the beam center of mass and beam size are shown.
Beam-beam instability. Oscillations of the beam center of mass and beam size are shown.
Convergence of the beams, accompanied by a quadrupole instability.
Vertical beam size vs betatron tunes.
A spectrum of vertical synchrobetatron oscillations.
Ratio of for a set of the VEPP-4M operation modes. Experimental points and theoretical curves are shown.
Digital filtering of betatron oscillation measured.
Measured betatron oscillation envelope in comparison with the theoretical one.
Routine monitoring of beam phase oscillations.
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