Imaging properties of pixellated scintillators with deep pixels

H. Bradford Barber; David Fastje; Daniel Lemieux; Gary P. Grim; Lars R. Furenlid; Brian W. Miller; Philip Parkhurst; Vivek V. Nagarkar

doi:10.1117/12.2066172

Imaging properties of pixellated scintillators with deep pixels

H. Bradford Barber
, David Fastje
, Daniel Lemieux
, Gary P. Grim
, Lars R. Furenlid
, Brian W. Miller
, Philip Parkhurst
, Vivek V. Nagarkar

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

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.

Original language	English (US)
Title of host publication	Radiation Detectors
Subtitle of host publication	Systems and Applications XV
Editors	Gary P. Grim, H. Bradford Barber
Publisher	SPIE
ISBN (Electronic)	9781628412420
DOIs	https://doi.org/10.1117/12.2066172
State	Published - 2014
Event	Radiation Detectors: Systems and Applications XV - San Diego, United States Duration: Aug 18 2014 → Aug 20 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9215
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Radiation Detectors: Systems and Applications XV
Country/Territory	United States
City	San Diego
Period	8/18/14 → 8/20/14

Keywords

High-energy gamma-ray imaging
Internal radioactivity
LSO
LYSO
Pixellated scintillators
Scintillators

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2066172

Cite this

Barber, H. B., Fastje, D., Lemieux, D., Grim, G. P., Furenlid, L. R., Miller, B. W., Parkhurst, P., & Nagarkar, V. V. (2014). Imaging properties of pixellated scintillators with deep pixels. In G. P. Grim, & H. B. Barber (Eds.), Radiation Detectors: Systems and Applications XV Article 92150F (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9215). SPIE. https://doi.org/10.1117/12.2066172

Imaging properties of pixellated scintillators with deep pixels. / Barber, H. Bradford; Fastje, David; Lemieux, Daniel et al.
Radiation Detectors: Systems and Applications XV. ed. / Gary P. Grim; H. Bradford Barber. SPIE, 2014. 92150F (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9215).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Barber, HB, Fastje, D, Lemieux, D, Grim, GP, Furenlid, LR, Miller, BW, Parkhurst, P & Nagarkar, VV 2014, Imaging properties of pixellated scintillators with deep pixels. in GP Grim & HB Barber (eds), Radiation Detectors: Systems and Applications XV., 92150F, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9215, SPIE, Radiation Detectors: Systems and Applications XV, San Diego, United States, 8/18/14. https://doi.org/10.1117/12.2066172

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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.",

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AU - Parkhurst, Philip

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AB - 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.

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ER -

Imaging properties of pixellated scintillators with deep pixels

Abstract

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Keywords

ASJC Scopus subject areas

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