PLASTIC SCINTILLATOR WITH NANOSTRUCTURED LUMINOPHORS Russian patent published in 2010 - IPC G01T1/203 

FIELD: physics.

SUBSTANCE: polymer base of the scintillator has primary and secondary luminophors joined by silicon atoms into nanosized branched macromolecules. Total number of links of the primary and secondary luminophors in the macromolecule ranges from 3 to 45. The ratio of the number of links of the primary N luminophor to the number of links of the secondary is

where N_L1 is the number of links of the primary luminophor in the macromolecule, and N_L2 is the number of links of the secondary luminophor in the macromolecule. The distance between centres of any two neighbouring links is not more than 1.2 nm. The polymer base used can be any polymer from a group of vinyl aromatic polymers. The primary luminophor is selected from a group of compounds for which the maximum of the long-wave absorption spectrum band lies between 270 and 350 nm and fluorescence quantum yield is not less than 5%, and the secondary luminophor is selected from a group of compounds for which the maximum of the long-wave absorption spectrum band lies between 330 and 400 nm and fluorescence quantum yield is not less than 30%.

EFFECT: obtaining plastic scintillator with high light output relative light output of anthracene, and light attenuation coefficient at the wavelength.

2 cl, 1 dwg, 6 ex