Abstract 1,1,4,4-tetraphenyl-1,3-butadiene (TPB) is an organic wavelength-shifting (WLS) material, which can down-convert wavelength from extreme ultraviolet (EUV) region to blue-visible region. When it is used in noble element detectors, TPB will be applied in strong radiation fields, so the radiation-resistance behavior of TPB is of crucial importance. The radiation effects of α and γ irradiation on TPB were studied by using 241Am α source and 60Co γ source. The results show that the peak intensity of fluorescence decreases linearly for α irradiation, while demonstrate an obvious turning point for γ irradiation when the accumulated dose is over 100 kGy. Experimental results confirmed that TPB is a promising WLS material in strong radiation environment.

中文翻译：

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α粒子和γ辐射对1,1,4,4-四苯基-1,3-丁二烯波长移位器的影响

摘要 1,1,4,4-四苯基-1,3-丁二烯（TPB）是一种有机波长转换（WLS）材料，可以将波长从极紫外（EUV）区下转换到蓝可见光区。用于贵元素探测器时，TPB将应用于强辐射场，因此TPB的抗辐射性能至关重要。采用241Amα源和60Coγ源研究了α和γ辐照对TPB的辐射效应。结果表明，α辐照的荧光峰值强度线性下降，而当累积剂量超过100 kGy时，γ辐照出现明显的转折点。实验结果证实，TPB是一种在强辐射环境下很有前途的WLS材料。