Patent ID: 7326900
Filing Date: 2008-02-05
Classification: G01N,H01J

Abstract:
1. A two-dimensional weak radiation detector, comprising: a photoelectric conversion part which emits electrons by incidence of photons; an amplification module which is placed to face the photoelectric conversion part, and is provided with a number of electron amplification parts that amplify the electrons emitted by the photoelectric conversion part; a detection module which is provided to correspond to each of said electron amplification parts constituting the amplification module, and is provided with a number of electron detection parts on which electrons from the electron amplification parts are incident; an operation control part which operates each of said electron detection parts constituting the detection module based on an orthogonal modulation pattern; a data read part which combines signals detected by a number of electron detection parts operated by said operation control part based on an orthogonal modulation pattern in time sequence and outputs the combined signals; and a light incidence position calculation part which obtains positions of said photons incident on said photoelectric conversion part, based on a control signal of the operation control part and an output signal of each of said electron detection parts.