A color-change dosimeter film made of a halogen-containing polymer in which is dispersed an acid-sensitive leuco dye, which dye a) is substantially free from groups that are sensitive to high-energy radiation and b) becomes colored in acid. This color-change dosimeter film (1) remains substantially colorless upon exposure to artificial illumination, including fluorescent light, for at least several months, (2) becomes colored upon exposure to high-energy radiation and accurately indicates small changes in dosage by the intensity of its color, and (3) remains substantially unchanged in its intensity of that color after being stored for several months, whether or not exposed to artificial illumination. An article of either quantitative or qualitative determination of the extent of high-energy radiation exposure is also provided, displaying a colored message of words, codes, symbols, or patterns on a substrate after exposure to the high-energy radiation.
一种变色剂量计薄膜,由一种含卤聚合物制成,其中分散有一种对酸敏感的leuco
染料,这种
染料 a) 基本上不含对高能辐射敏感的基团,b) 在酸中会变色。这种变色剂量计胶片(1)在人工照明(包括荧光灯)下至少几个月保持基本无色;(2)在高能辐射下变色,并通过颜色强度准确显示剂量的微小变化;(3)在储存几个月后,无论是否在人工照明下,颜色强度基本保持不变。此外,还提供了一种可定量或定性确定高能辐射照射程度的物品,可在高能辐射照射后在基底上显示由文字、代码、符号或图案组成的彩色信息。