CAJ | 학술논문

以类丁二炔化合物为有机染色材料，添加适量光引发剂，以聚酯片为基材，成功制备了一种高灵敏度辐射变色薄膜剂量计。经过5～1500 Gy的γ射线辐照后，薄膜灵敏层颜色由辐照前的淡粉色变为辐照后的蓝色，且随着辐照剂量的增加，颜色深度逐渐加深；分光光度计测试其吸收光谱，发现其主、次吸收峰分别在670 nm、613 nm附近；吸收峰处的吸光度响应与吸收剂量呈良好的线性关系；薄膜配方中添加适当比例的光引发剂，能够提高其响应灵敏度；吸光度响应随敏感层厚度与有机染色材料浓度的增加而增大；室温下避光贮存100 d ，吸收峰处的吸光度响应几乎不变，说明此种变色薄膜的稳定性良好。
이류정이결화합물위유궤염색재료，첨가괄량광인발제，이취지편위기재，성공제비료일충고령민도복사변색박막제량계。경과5～1500 Gy적γ사선복조후，박막령민층안색유복조전적담분색변위복조후적람색，차수착복조제량적증가，안색심도축점가심；분광광도계측시기흡수광보，발현기주、차흡수봉분별재670 nm、613 nm부근；흡수봉처적흡광도향응여흡수제량정량호적선성관계；박막배방중첨가괄당비례적광인발제，능구제고기향응령민도；흡광도향응수민감층후도여유궤염색재료농도적증가이증대；실온하피광저존100 d ，흡수봉처적흡광도향응궤호불변，설명차충변색박막적은정성량호。
A kind of radiochromic film dosimeter with high sensitivity had been devel‐oped by using polydiacetylene compounds as organic dye material ,using polyester chips as base material and adding an appropriate amount of photoinitiator .The color of the radiochromic film which was irradiated by γ‐ray changed from the light pink to blue . The color would be deepened with the increase of radiation dose;The master and second absorption peak located at 670 nm and 613 nm respectively by using spectrophotometer to test the absorption spectra;There was a good linear relationship between absorbance response at the absorption peaks and the absorbed dose;The response sensitivity would be improved by adding an appropriate amount of photoinitiator in the film formulation ;The absorption response would increase by the incensement in thickness of the film and the concentration of the organic dye material; The radiochromic films had been preserved for 100 days at room temperature ,avoiding from light .The result showed that the absorption response almost remained unchanged and the film’ s stability w as good .