  In this manuscript we report on the scintillation properties and pulse shape
discrimination (PSD) performance of new organic glass scintillator. Two
cylindrical samples with dimensions of 2x2 inches were tested. Additionally,
this two samples were used in stack configuration in order to measure the PSD
characteristics of a sample with a size of 2x4 inches. The study covers the
measurements of neutron/gamma discrimination capability, emission spectra,
photoelectron yield and analysis of the light pulse shapes originating from
events related to gamma-rays and fast neutrons. The results were compared to
data recorded previously using an EJ-276 plastic scintillator, an EJ-309 liquid
scintillator and a stilbene single crystal.
