12-16 September 2005
University of Liverpool
Europe/Zurich timezone

The design of an active pixel sensor test structure optimised for the readout of scintillator screens

Sep 15, 2005, 10:30 AM
University of Liverpool

University of Liverpool

Greenbank Conference Park
Board: P6
Contributed Poster X-ray and Gamma-ray Detectors P : Coffee and Poster Session


Mr Thomas Greig (Brunel University)


The design of pixel test structures for CMOS active pixel sensors (APS) being developed by Brunel University and e2v technologies ltd are described in this paper. The APS pixel is a development of a standard readout and sensing arrangement employing three transistors per pixel but has been optimised for indirect x-ray detection applications. The pixel is tuned to have a narrow band response to visible light generated by a scintillator screen and also has a high well capacity. This application demonstrates some of the challenges that need to be overcome when using the standard CMOS foundry processes to develop APS for scientific imaging applications and we present the possibility of using a custom CMOS process to create a low noise high fill factor/QE pinned photodiode pixel

Primary author

Mr Thomas Greig (Brunel University)

Presentation materials