Characterization Of A Charge-Injection-Device Camera System As A Multichannel Spectroscopic Detector

Abstract

A solid -state camera system designed for use as a multichannel detection system for spectroscopic applications is evaluated. The camera is based on a charge-injection-device sensor that permits very high dynamic range operation by virtue of its unique nondestructive readout capability.Methods of determining gain and readout noise are discussed. Performance of the camera system is evaluated with respect to sensitivity, linearity, readout noise, and dynamic range. The use of nondestructive readout to reduce effective readout noise and increase dynamic range is described. Spectral responses in the visible and ultraviolet of coronene-coated and uncoated devices are reported. Various time -dependent anomalies caused by interface trapped charge are discussed.

Evaluation of digital X-ray detectors for medical imaging applications

“…Using the photon transfer technique, one can extract, in addition to the camera gain, a number of fundamental parameters of a digital sensor, such as linearity, read & shot noise decomposition from FPN, signal to noise ratio, full well capacity, dynamic range, dark current and quantum efficiency at specific wavelengths (Janesick, 2001). Also, in the 1980s the 'meanvariance' technique, using the same origin and assumptions, was developed for CCD's gain constant calculation (Mortara andFowler, 1981 andSims andDenton, 1987).…”

“…Mean-variance analysis has been used for many years for CCDs' conversion gain calculation (Mortara and Fowler, 1981, Sims and Denton, 1987and Holdsworh et al, 1990 (2.5).…”