@inproceedings{dfa9be1cb48443abadc3b01fbc3b4a67,
title = "Imaging properties of pixellated scintillators with deep pixels",
abstract = "We have investigated the light-transport properties of scintillator arrays with long, thin pixels (deep pixels) for use in high-energy gamma-ray imaging. We compared 10x10 pixel arrays of YSO:Ce, LYSO:Ce and BGO (1mm x 1mm x 20 mm pixels) made by Proteus, Inc. with similar 10x10 arrays of LSO:Ce and BGO (1mm x 1mm x 15mm pixels) loaned to us by Saint-Gobain. The imaging and spectroscopic behaviors of these scintillator arrays are strongly affected by the choice of a reflector used as an inter-pixel spacer (3M ESR in the case of the Proteus arrays and white, diffuse-reflector for the Saint-Gobain arrays). We have constructed a 3700-pixel LYSO:Ce Prototype NIF Gamma-Ray Imager for use in diagnosing target compression in inertial confinement fusion. This system was tested at the OMEGA Laser and exhibited significant optical, inter-pixel cross-talk that was traced to the use of a single-layer of ESR film as an inter-pixel spacer. We show how the optical cross-talk can be mapped, and discuss correction procedures. We demonstrate a 10x10 YSO:Ce array as part of an iQID (formerly BazookaSPECT) imager and discuss issues related to the internal activity of 176Lu in LSO:Ce and LYSO:Ce detectors.",
keywords = "High-energy gamma-ray imaging, Internal radioactivity, LSO, LYSO, Pixellated scintillators, Scintillators",
author = "Barber, {H. Bradford} and David Fastje and Daniel Lemieux and Grim, {Gary P.} and Furenlid, {Lars R.} and Miller, {Brian W.} and Philip Parkhurst and Nagarkar, {Vivek V.}",
note = "Publisher Copyright: {\textcopyright} 2014 SPIE.; Radiation Detectors: Systems and Applications XV ; Conference date: 18-08-2014 Through 20-08-2014",
year = "2014",
doi = "10.1117/12.2066172",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Grim, {Gary P.} and Barber, {H. Bradford}",
booktitle = "Radiation Detectors",
}