Jeromin L S, Geddes G F, White S C, Gratt B M
Oral Surg Oral Med Oral Pathol. 1980 Feb;49(2):178-83. doi: 10.1016/0030-4220(80)90314-x.
A novel x-ray imaging system for intraoral dental radiography is described. The imaging process is based on xeroradiographic principles. The surface of a small selenium photoreceptor is electrically charged. After insertion into a light-tight cassette, the photoreceptor is placed intraorally and x-ray exposed like film. The resultant electrostatic charge image is developed in a processor using liquid toner. The toner image is then transferred from the photoreceptor and fixed to a white plastic substrate for viewing. After cleaning, the photoreceptor is available for reuse. In contrast to film images, xeroradiographic images are exposed and processed sequentially. Processing time is approximately 20 seconds. Two image characteristics--edge enhancement and deletion--are primarily responsible for many advantageous qualities of xeroradiographic images over film images. An experimental processor was tested successfully at two dental schools.
描述了一种用于口腔内牙科X射线成像的新型X射线成像系统。该成像过程基于干板X射线照相原理。一个小型硒感光体的表面被充电。将感光体插入不透光的暗盒后，放置在口腔内并像胶片一样进行X射线曝光。所得的静电荷图像在处理器中使用液体调色剂显影。然后将调色剂图像从感光体上转移并固定到白色塑料基板上以供查看。清洁后，感光体可供再次使用。与胶片图像不同，干板X射线照相图像是依次曝光和处理的。处理时间约为20秒。两种图像特性——边缘增强和消除——是干板X射线照相图像相对于胶片图像具有许多优势的主要原因。一台实验性处理器在两所牙科学校进行了成功测试。
