A fundamentally new filtration material has been developed on the basis of original methods for producing porous and fibrous polymeric scintillators. This material combines the ability to filter radioactive contaminations in liquids and gases with the possibility of continuously monitoring the radioactive contamination level. The filtration materials were manufactured by means of the technology of production of nonwoven filtration materials involving the electrostatic spinning method. Our study resulted in the production of ultrathin fibers based on polystyrene with various luminescent additives. The obtained bifunctional filtration materials incorporated in a detector based on an ФЭУ-100 PMT have been tested under laboratory conditions in the realtime mode. The detector's performance parameters - sensitivity to radon, radiation-response linearity, and radiation stability - have been measured. The activity-decay and luminescence-intensity-decay constants of the exposed samples almost coincide, thereby indicating a high radiation resistance of the material. The filtration material exhibits high sensitivity to the detection of different types of pollution with radioactive preparations, including a- and P-active substances.
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