Gamma-ray radiochromic solution and radiation dosemeter prepared by using the same

Abstract

The invention, belonging to the field of radiation chemistry and nuclear technology, discloses a gamma-ray radiochromic solution, comprising the following ingredients: 0.02-1 weight portions of dye, 0-0.5 weight portions of photoinitiator, 0-0.5 weight portions of anti-oxidant, 0-10 weight portions of organic solvent, and the rest sovlent consisting of 100 weight portions of distilled water. The invention further discloses a radiation dosemeter prepared by using the gamma-ray radiochromic solution, comprises a radiochromic device and a colorimetric device. The gamma-ray radiochromic solution and the radiation dosemeter are suitable for large scale industrial irradiation. According to the invention, a test result of the radiation dosemeter is timely and intuitionistic, the radiation dosemeter can guide production on site to guarantee the irradiation quality, the radiation dosemeter can be placed in any position and even in the package of an object being irradiated to prevent pollution; the radiation dosemeter is fit for any object being irradiated, and even can be placed in a liquid or cream object being irradiated; the gamma-ray radiochromic solution is stable under the conditions of room temperature and room light illumination, and has equivalence that is close to the equivalence of the object being irradiated; and the gamma-ray radiochromic solution has the advantages of simple formula and preparation, easy obtainment of raw materials, and low cost, and the precision of the gamma-ray radiochromic solution is suitable for large scale irradiation processing.

Description

technical field [0001] The present invention belongs to the fields of radiation chemistry and nuclear technology. Background technique [0002] Gamma radiation treatment and processing technology is more and more widely used in industrial and agricultural production, including radiation sterilization of food, feed, medical supplies, cosmetics, sanitary products, etc., and radiation modification of polymer materials. In order to use radiation efficiently and accurately, the measurement of radiation dose is particularly important. There are many standards and methods for dosimetry, including ionization, calorimetry, thermoluminescence, and chemical methods. (such as ionization chamber, spectrophotometer, infrared spectrometer, electron spin resonance spectrometer) measurement, and then calculate the radiation dose, which is not intuitive; or the measurement dose is low and the range is small, which is difficult to use for the timely dose of radiation processing monitor. In r...

AI Technical Summary

Problems solved by technology

The production process of the film dosimeter is complicated, and the radiochromic solution needs to be coated on the transparent substrate, which requires high uniformity and thickness of the coating film, and requires protection from light during the production and storage process; hot air is required to dry the film after coating; A protective layer is also needed; the dosimeter needs to use instruments to determine the results, which is time-consuming and not intuitive; the linear range of the dose response is low, which is suitable for radiation medicine and scientific experiments, and the dose of radiation sterilization and radiation modification is generally 1000 More than Gy

In decades of radiation processing practice, we need to understand three issues related to dose in a timely manner: ①Is the item irradiated or not; ②Is the irradiation dose appropriate? But it is difficult to judge on the spot and solve the problem in time so as to delay the production cycle and cause waste of manpower and material resources