Patent ID: 7518112

Claim:
A radiation detection circuit connected to an output side of a radiation detector, inputting a charge signal having a strength according to an incident energy of radiation from said radiation detector, and outputting incident energy information and incident timing information according to an intensity of said charge signal, wherein said radiation detection circuit is formed as a semiconductor integrated circuit on a single semiconductor substrate, wherein an inverted signal is generated for each of input/output signals required for controlling a logic of said radiation detection circuit, wherein said radiation detection circuit is structured so that a noise charge generated by coupled capacity between a bonding wire at an analog input side in a package of said semiconductor integrated circuit and each bonding wire of said input/output signals is canceled by an inverted noise charge generated by coupled capacity between said inversed signal and said output of said radiation detector when in logic controlling, wherein a charge sensitive amplifier that is a component of said radiation detection circuit has a single input terminal, and wherein said output incident energy information and said output incident timing information are based on an output of said charge sensitive amplifier.