Medical X-ray imaging with energy windowing

Authors
Lindner, M Blanquart, L Fischer, P Kruger, H Wermes, N
Citation
M. Lindner et al., Medical X-ray imaging with energy windowing, NUCL INST A, 465(1), 2001, pp. 229-234
Citations number
7
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
465
Issue
1
Year of publication
2001
Pages
229 - 234
Database
ISI
SICI code
0168-9002(20010601)465:1<229:MXIWEW>2.0.ZU;2-S
Abstract
A photon counting pixel read-out chip for medical X-ray imaging with energy windowing is presented. It consists of 32 x 32 pixels of 200 mum x 200 mum size, each of them contains two discriminators and two 18-bit counters. Bo th discriminator thresholds can be adjusted individually for good image hom ogeneity and a circuit has been designed to avoid threshold drift. Measurem ents on the noise behaviour, threshold variation and threshold drift are sh own. (C) 2001 Elsevier Science B.V. All rights reserved.