  A low noise and wide dynamic range event driven detector for the detection of
X-Ray energy is realized using 0.2 [um] Silicon on insulator (SOI) technology.
Pixel circuits are divided into two parts; signal sensing circuit and event
detection circuit. Event detection circuit is activated when X-Ray energy falls
into the detector. In-pixel gain selection is implemented for the detection of
a small signal and wide band of energy particle. Adaptive gain and capability
of correlated double sampling (CDS) technique for the kTC noise canceling of
charge detector realizes the low noise and high dynamic range event driven
detector.
