コンピュータによるI.I.輝度管理装置の開発

概要

論文の詳細を見る
The brightness of an image intensifier (I.I.) decreases with its use over time. The extent of the decrease can be determined by finding a conversion factor (Gx) for evaluating the sensitivity of the I.I. Although JIS requires that Gx be measured with a luminance meter, we have developed a simplified version. In our newly developed system, a photo sensor rater than a luminance meter is used, and, from its output values, relative I.I. brightness is instantly calculated. Our system is composed of a photo sensor, an AD converter, and a card-sized computer. The gathered data are transferred into a lap-top computer through an RS-232C interface, where they can be processed into numerical values or graphically displayed. It was determined that the Gx measured with our system correlated almost perfectly with those measured according to JIS requirements. Therefore, the system is useful as a simple measuring device for Gx.
公益社団法人日本放射線技術学会の論文
1998-06-20