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发明申请
US20070075270A1 Radiation image storage panel suitable for use in mammographic applications 有权
辐射图像存储面板适用于乳房X光照相应用

Radiation image storage panel suitable for use in mammographic applications
摘要：
In a photostimulable storage phosphor screen or panel wherein said screen comprises storage phosphor particles dispersed in a binder and wherein said particles have a particle size distribution having a d99 which is not more than 15 μm, said d99 expressing a grain size limit above which not more than 1% by weight of phosphor powder particles is present in said phosphor powder, its structure noise parameter DQE2rel exceeds a value of 0.70 and a ratio of d99 (expressed in μm) and DQE2rel is not more than 25:1, wherein DQE2rel is the ratio of the DQE2 obtained at a dose of 22 mR to the DQE2 obtained at a dose of 3 mR, as expressed in formula (I) DQE2rel=DQE2(22 mR))/DQE2(3 mR)  (I) which is representative for an amount of screen-structure noise produced by said screen or panel in the complete spatial frequency range.
摘要（中）：

在可光激励的存储荧光屏或面板中，其中所述屏幕包括分散在粘合剂中的储存磷光体颗粒，并且其中所述颗粒的粒度分布具有不大于15μm的粒子，所述d 99 ，其中，在所述荧光粉中存在不超过1重量％的荧光体粉末颗粒的晶粒尺寸极限，其结构噪声参数DQE2 超过0.70的值， d 99％（以mum表示）和DQE2 的比率不大于25:1，其中DQE2 是 DQE2以22mR的剂量获得，以3mR的剂量获得，如式（I）所示。<？in-line-formula description =“In-line Formulas”end =“lead”？> DQE 2 rel = DQE 2（22 mR））/ DQE 2（3 mR）（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> 整个屏幕或面板产生的结构噪声 空间频率范围。

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