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Appl Opt. 1974 Nov 1;13(11):2680-4. doi: 10.1364/AO.13.002680.
Studies of peak transmission drift in narrow-band interference filters have shown that there exist two mechanisms that cause drift toward shorter wavelengths. One is dependent on the thermal history of the filter and is discussed in Part 1 of this paper. The other is dependent on the exposure of the filter to radiation. For ZnS-cryolite filters of the design (HL)(4)H(8)(LH)(4)LL(-1), it is experimentally demonstrated that the filters are most sensitive to radiation in a 100-A band centered at approximately 3900 A. The drift rate in the focal plane of an f/20 solar image is approximately 3 A/100 h of exposure. Further, it is also shown by model calculations that the observed radiation-induced drift is consistent with the hypothesis that the optical thickness of ZnS decreases in proportion to the radiant energy absorbed.
对窄带干涉滤光片峰值透射漂移的研究表明，存在两种导致向较短波长漂移的机制。一种取决于滤光片的热历史，本文第一部分对此进行了讨论。另一种取决于滤光片对辐射的暴露。对于设计为(HL)(4)H(8)(LH)(4)LL(-1)的硫化锌 - 冰晶石滤光片，实验证明这些滤光片对中心波长约为3900埃的100埃波段内的辐射最为敏感。在f/20太阳图像的焦平面上，漂移率约为每曝光100小时3埃。此外，模型计算还表明，观察到的辐射诱导漂移与硫化锌光学厚度与吸收的辐射能量成比例减小的假设一致。
