Imaging systems.

摘要

An imaging system of the x-ray type including a radiation source (10) and a panel electron image intensifier tube PET (18) is described. A gradient refractive index (GRIN) lens array (28) is positioned adjacent the output face (20) of the PET (18) such that the objective plane defined by the lens array (28) substantially coincides with the output face (20) of the PET (18). Means (26) is provided for supporting a portion of radiographic film such that the film surface substantially coincides with the image plane of the lens array (28).