Preparation process of a radiochromic label dosimeter

Abstract

The invention belongs to the technical field of dosimeters and discloses a radiated discoloring label dosimeter and a preparation process. The dosimeter comprises a sensitive layer, a base layer, an adhesive layer and a stripping paper layer in the sequence from top to bottom, wherein the sensitive layer is prepared from a polymer, an acid-sensitive dye, an auxiliary discoloring substance and a first solvent, and the base layer is prepared from a base layer material and a second solvent. The process includes the steps that 1, the polymer is dissolved in the first solvent; 2, the auxiliary discoloring substance and the acid-sensitive dye are added to obtain a first solution; 3, the base layer material is dissolved in the second solvent to obtain a second solution; 4, the non-setting adhesive is coated with the second solution, and the upper portion of the base layer is coated with the first solution; 5, drying is performed; 6, cutting is performed by adopting a die cutting machine and a half cutting mode. The radiated discoloring label dosimeter has the advantages that semi-quantitative or qualitative detection of irradiation dose can be performed, a formed film is uniform and flat, and mold release is not needed.

Description

technical field [0001] The invention belongs to the technical field of dosimeters, and in particular relates to a radiochromic label dosimeter and a preparation process. Background technique [0002] Radiation-changing label dosimeters are usually opaque adhesive labels that change color obviously under a certain amount of ionizing radiation. The dosimeter indicates the absorbed dose through the degree of color change. It can be used for visual observation and estimation of dose levels, and is suitable for qualitative and semi-quantitative applications. field. [0003] In 2013, Cai Zhanfan and others published a patent document titled "A Preparation Method for Radiation-Changing Film". The preparation method has the following defects: 1. Dry and solidify at a temperature of 10°C to 50°C and a humidity of 20% to 70% to form a film, the drying temperature is low, the curing and drying time is long, the environment is greatly affected, and the efficiency is low ; 2. The film-...

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Problems solved by technology

[0003] In 2013, Cai Zhanfan and others published a patent document titled "A Preparation Method for Radiation-Changing Film". The preparation method has the following defects: 1. Dry and solidify at a temperature of 10°C to 50°C and a humidity of 20% to 70% to form a film, the drying temperature is low, the curing and drying time is long, the environment is greatly affected, and the efficiency is low ; 2. The film-forming solution is evenly coated on the horizontal plane support, which is difficult to release the film and is easy to curl and wrinkle, and is not suitable for mass production; 3. The dose meter prepared by this preparation method in the radiation field also needs to be manually pasted It is inconvenient to use after pasting the adhesive layer on a certain position

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