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To study the dependence of the equation of state of high density nuclearmatter on the term characterizing the isospin (proton-neutron) asymmetry ofnuclear matter, it is necessary to measure azimuthal flow of neutrons as wellas azimuthal flow of charged particles from a dense nuclear matter in thenuclear-nuclear collisions. For this purpose INR RAS is developing a newhigh-granular neutron detector which will be used in the BM@N experiment at theextracted beam of the Nuclotron accelerator at JINR (Dubna). This detector willidentify neutrons and measure their energies in the heavy-ion collisions up to4 GeV per nucleon.  This article presents the results of measurements of the time resolution andlight yields of samples of scintillation detectors with sizes40$\times$40$\times$25 mm$^3$ that will be used in a neutron detector based onthe currently available fast plastic scintillator manufactured by JINR using anEQR15 11-6060D-S photodetector for light readout. For comparison, the resultsof measurements for a detector of the same size with a fast scintillator EJ-230and with the same type of photodetector are given. The measurements were madeon cosmic muons as well as on the electron synchrotron "Pakhra" of the LebedevPhysical Institute of the Russian Academy of Sciences located in Troitsk,Moscow.

Measurement of Time Resolution of Scintillation Detectors with EQR-15  Silicon Photodetectors for the Time-of-Flight Neutron Detector of the BM@N  Experiment