Sonoluminescence as Instrument for the Measurement of Time Parameters of   Fast Photomultipliers
  The apparatus description for control of the time parameters of photomultipliers with high time resolution is described. For generation of ultrashort light flashes have been used sonoluminescence effect -- emission of the light flashes which is appearing at the stressed interior of collapsing air microbubble by sound wave in water. 
P.V.Vorob'ev, I.N.Nesterenko, A.R.Frolov, T.V.Shaftan (Budker   Institute of Nuclear Physics, Novosibirsk)