Plastic flash optical fiber type dosimeter resistant to Cherenkov light interference and preparation method of plastic flash optical fiber type dosimeter

The invention relates to a plastic flash optical fiber dosimeter resistant to Cherenkov light interference and a preparation method thereof, and belongs to the field of medical radiation dose measurement. The plastic scintillation optical fiber type dosimeter comprises a red light scintillation probe (1), a quartz hollow optical fiber (5), a light shielding adapter (6), a red light filter (7), a photomultiplier conversion device (8) and an electrometer (9). The method comprises the following steps of red light PMMA prepolymer preparation, red light scintillation probe preparation, probe packaging, optical fiber connection and charge integration. According to the plastic flashing optical fiber dosimeter and the preparation method thereof, the spectrum difference between a flashing light spectrum (a red light region) and a Cherenkov spectrum (a blue-green light region) can be utilized, and the Cherenkov light at an optical signal detection end is greatly reduced by virtue of the characteristic that the air core