University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Imaging properties of cerium doped Yttrium Aluminum Oxide (YAP:Ce) powder scintillating screens under X-ray excitation

Kalivas, N, Valais, I, Salemis, G, Karagiannis, C, Konstantinidis, A, Nikolopoulos, D, Loudos, G, Sakelios, N, Karakatsanis, N, Nikita, K, Gayshan, VL, Gektin, AV, Sianoudis, I, Giokaris, N, Nomicos, CD, Dimitropoulos, N, Cavouras, D, Panayiotakis, G and Kandarakis, I (2006) Imaging properties of cerium doped Yttrium Aluminum Oxide (YAP:Ce) powder scintillating screens under X-ray excitation Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 569 (2 SPEC). pp. 210-214.

Full text not available from this repository.

Abstract

The aim of the present study was to evaluate the imaging performance of YAP:Ce powder scintillating screens under exposure conditions employed in diagnostic radiology (50-140 kV). Various screens were prepared in our laboratory from YAP: Ce powder (Phosphor Technology, Ltd.), with coating thickness ranging from 53 to 110 mg/cm2. The imaging performance of the screens was assessed by experimental determination of the modulation transfer function (MTF) and the noise transfer function (NTF). MTF was determined by the edge spread function (ESF) method while NTF was estimated by noise power spectrum (NPS) measurements after uniform screen irradiation. In addition, parameters related to overall image quality, such as the signal-to-noise ratio transfer (MTF/NTF), were estimated. MTF curves were affected by the beam hardening effects caused by the patient simulating 20 mm thick aluminum phantom. Under these conditions MTF values were found to increase with the mean X-ray photon energy. A similar effect was observed for NTF curves. Results were compared with data obtained on CsI:Tl scintillator. Taking into consideration the very fast response of YAP:Ce, these data may be of interest in designing X-ray imaging detectors. © 2006 Elsevier B.V. All rights reserved.

Item Type: Article
Authors :
NameEmailORCID
Kalivas, NUNSPECIFIEDUNSPECIFIED
Valais, IUNSPECIFIEDUNSPECIFIED
Salemis, GUNSPECIFIEDUNSPECIFIED
Karagiannis, CUNSPECIFIEDUNSPECIFIED
Konstantinidis, Aa.konstantinidis@surrey.ac.ukUNSPECIFIED
Nikolopoulos, DUNSPECIFIEDUNSPECIFIED
Loudos, GUNSPECIFIEDUNSPECIFIED
Sakelios, NUNSPECIFIEDUNSPECIFIED
Karakatsanis, NUNSPECIFIEDUNSPECIFIED
Nikita, KUNSPECIFIEDUNSPECIFIED
Gayshan, VLUNSPECIFIEDUNSPECIFIED
Gektin, AVUNSPECIFIEDUNSPECIFIED
Sianoudis, IUNSPECIFIEDUNSPECIFIED
Giokaris, NUNSPECIFIEDUNSPECIFIED
Nomicos, CDUNSPECIFIEDUNSPECIFIED
Dimitropoulos, NUNSPECIFIEDUNSPECIFIED
Cavouras, DUNSPECIFIEDUNSPECIFIED
Panayiotakis, GUNSPECIFIEDUNSPECIFIED
Kandarakis, IUNSPECIFIEDUNSPECIFIED
Date : 20 December 2006
Identification Number : https://doi.org/10.1016/j.nima.2006.08.020
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:54
Last Modified : 17 May 2017 12:54
URI: http://epubs.surrey.ac.uk/id/eprint/837195

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800