公开(公告)号：US5051597A

公开(公告)日：1991-09-24

申请号：US477585

申请日：1990-02-09

申请人： David F. Lewis ,  Carl A. Listl ,  Mark L. Moskowitz ,  Anthony Pilato ,  Robert D. Schenfele

发明人： David F. Lewis ,  Carl A. Listl ,  Mark L. Moskowitz ,  Anthony Pilato ,  Robert D. Schenfele

IPC分类号： G01J1/50 ,  G01T1/06

CPC分类号： G01J1/50 ,  G01T1/06

摘要： A multi-ply radiation dosage indicator, and method of manufacture, is disclosed including a first ply having visible indicia thereon and a second ply having a radiation sensitive zone overlying the indicia of the first ply. The radiation sensitive zone is capable of changing opacity in response to exposure to a radiation dosage exceeding a predetermined threshold so as to change the visibility of the indicia thereby providing an indication as to whether the indicator has become irradiated. An optical filter ply may be provided overlying the indicia, and the indicator also may be provided with a transparent protective outer ply. A pressure sensitive adhesive ply having a removable release sheet is employed for attaching the indicator to a substrate.

摘要翻译： 公开了一种多层辐射剂量指示剂及其制造方法，包括其上具有可见标记的第一层和具有覆盖第一层标记的辐射敏感区的第二层。 辐射敏感区域能够响应于暴露于超过预定阈值的辐射剂量而改变不透明度，以便改变标记的可见度，从而提供关于指示剂是否已经照射的指示。 可以在标记上方设置滤光片层，并且指示器还可以设置有透明的保护性外层。 使用具有可移除的脱模片的压敏粘合剂层将指示剂附接到基底。