RADIOPHOTOLUMENESCENCE OF IRRADIATED POLYMETHYLMETHACRYLATE DOPED WITH SOME CHARGE-TRANSFER COMPLEXES

Radiophotolumenescence (RPL) of irradiated and non irradiated thin films of polymethylmethacrylate (PMMA) doped with anthracene (Anth) as a donor, and tetracyanoquinodimethane (TCNQ) as an acceptor, has been investigated. The RPL - glow spectrum was recorded to study the characterizing emission bands from the point of view of glow peak position and intensity and hence the prospective relative sensitivities. RFL - signal fading after one month storage in dark at room temperature post gamma irradiation was also studied. PMMA doped with 6:4 donor to acceptor ratio has been proved to be the most sensitive one with less fading regarding gamma detection. On the other hand 2 Anth:8 TCNQ was found to be the proper dopant concentration ratio for thermal neutron detection.