Patent ID: 6967332
Filing Date: 2005-11-22
Classification: G01T,H04N

Abstract:
1. A radiation flat panel detector which has a conversion unit that comprises a plurality of pixels having first conversion elements, and switch elements connected to the first conversion elements on a substrate, and which outputs image information in accordance with an intensity of radiation that enters the conversion unit, comprising: a second conversion element which is formed on the substrate to detect a total intensity of radiation that enters the conversion unit and/or start/stop of a irradiation of radiation; and a processing circuit unit which is connected to said second conversion element and processes a detected signal, wherein the first conversion elements are arranged at equal intervals p in column and row directions, and an area S of a light-receiving area of said second conversion element is given by: where w is the dimension of said second conversion element in the row direction, h is the dimension of said second conversion element in the column direction, and k is a real number.