Usage of a cavity with a high quality factor in a streak
camera (SC) allows us to increase the energy of electrons
up to 100 keV and therefore to reduce the influence of
some of the effects that limit the SC time resolution. Time
resolution up to 1.4 ps on a prototype of a radio-frequency-based
SC (RFC) with circular scanning was demonstrated earlier.
Following this, the new RFC was produced. The possibility
of achieving a time resolution of 0.6 ps for a 350-ps single
light signal is demonstrated. Preparation for experiments
with spiral scanning (sub-ps time resolution for 10-ns
process duration) is in progress.