Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1828349 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2009 | 5 Pages |
Abstract
The DEPFET-based Active Pixel Sensor (APS) matrix is a new detector concept for X-ray imaging and spectroscopy applications. This type of detector can provide excellent energy resolution and high-speed readout. Both of these features, along with the advantage of random pixel accessibility, can fulfill the requirements of new imaging applications in the X-ray band. In a matrix arrangement, each pixel must be read out by a time-variant filter, so a proper multi-channel integrated filtering amplifier is needed. To operate large area matrices at very fast processing times, we have recently proposed a current readout configuration. In this paper, we explore the performance offered by this circuit when operated with a DEPFET matrix, specifically concerning its ultimate speed capabilities and the trade-off achieved between electronics noise and processing time.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
L. Bombelli, C. Fiorini, M. Porro,