Film coating method for light-resistant film of plastic scintillator

The invention belongs to the technical field of ionizing radiation measurement, and particularly relates to a coating method for a light-resistant film of a plastic scintillator. Comprising the following steps: step 1, cleaning a plastic scintillator by using ultrasound in cooperation with a cleaning solution; 2, performing hydrophilic treatment on the surface of the scintillator by using oxygen plasma; step 3, carrying out adsorption treatment on the surface by using tetrachloropalladate radicals to finish surface modification of the organic molecular layer; and 4, under the temperature control condition, performing nickel solution electroless deposition on the surface of the plastic scintillator by using the special proportioning solution. The method has the beneficial effects that film coating can be directly carried out on the surface of the plastic scintillator, absolute light shielding is achieved, meanwhile, the minimum thickness of the metal coating film can reach 2 nm, and the precision is within +/-