DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS

A. W. Decker; J. J. Manfredi; M. T. Febbraro; N. J. Cherepy; S. Hok; P. A. Hausladen; J. P. Hayward

doi:10.1117/12.2682216

DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS

A. W. Decker, J. J. Manfredi, M. T. Febbraro, N. J. Cherepy, S. Hok, P. A. Hausladen, J. P. Hayward

Radiation Imaging and Advanced Diagnosti

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

Abstract

Recent material advancements in plastic scintillators enable marked increases in material light yield, detection efficiency, pulse-shape discrimination, and array production rates. These advances may resolve significant capability gaps for low-cost, portable, and durable dual-particle imaging (DPI) systems for nuclear safety, security and safeguard purposes. Two such materials, both 21% bismuth-loaded plastics utilizing iridium complex fluorophores (Ir-Bi-Plastic) were experimentally evaluated for DPI purposes as a small, pixelated radiographic array and compared to similar arrays made from EJ-200 and EJ-256 (5 wt% Pb). Experimentation involved separate exposures to 370 kVp x-rays and 14.1 MeV neutrons when paired with a digital radiographic panel, and array performance was evaluated using ASTM methods for dSNRn determination. Additionally, the development of fast-curing plastic scintillator (FCPS) formulations is highly attractive because it facilitates the 3D-printing of complete pixelated plastic scintillator arrays for radiation detection and localization. Future advancements in this area will significantly reduce the time and costs associated with current array manufacturing techniques. Some early investigations of FCPS samples sensitized with 5 wt% Bi is discussed herein, with their gamma detection efficiencies and associated light yields compared to an equivalent sample of EJ-256. These early unoptimized samples provided similar but not superior performance to EJ-256, and this is an ongoing area of research at the Air Force Institute of Technology.

Original language	English
Title of host publication	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV
Editors	Nerine J. Cherepy, Michael Fiederle, Ralph B. James
Publisher	SPIE
ISBN (Electronic)	9781510666061
DOIs	https://doi.org/10.1117/12.2682216
State	Published - 2023
Event	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV 2023 - San Diego, United States Duration: Aug 21 2023 → Aug 22 2023

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12696
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV 2023
Country/Territory	United States
City	San Diego
Period	08/21/23 → 08/22/23

Funding

The authors would like to thank the Department of Energy and the Defense Threat Reduction Agency for supporting this research. The authors also thank Dr. Dan Shedlock and Varex Imaging for the use of a Varex Industrial PaxScan® 1515DXT-I flat panel detector, and Dr. Keith Vaigneur at Agile Technologies for his assistance and supervision in the fabrication of the evaluated arrays.

Keywords

Plastic scintillator
dual-particle imaging (DPI)
fast-curing plastic scintillator (FCPS)
high-Z loading
neutron radiography
x-ray radiography

Access to Document

10.1117/12.2682216

Cite this

Decker, A. W., Manfredi, J. J., Febbraro, M. T., Cherepy, N. J., Hok, S., Hausladen, P. A., & Hayward, J. P. (2023). DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS. In N. J. Cherepy, M. Fiederle, & R. B. James (Eds.), Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV Article 1269608 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12696). SPIE. https://doi.org/10.1117/12.2682216

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title = "DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS",

abstract = "Recent material advancements in plastic scintillators enable marked increases in material light yield, detection efficiency, pulse-shape discrimination, and array production rates. These advances may resolve significant capability gaps for low-cost, portable, and durable dual-particle imaging (DPI) systems for nuclear safety, security and safeguard purposes. Two such materials, both 21% bismuth-loaded plastics utilizing iridium complex fluorophores (Ir-Bi-Plastic) were experimentally evaluated for DPI purposes as a small, pixelated radiographic array and compared to similar arrays made from EJ-200 and EJ-256 (5 wt% Pb). Experimentation involved separate exposures to 370 kVp x-rays and 14.1 MeV neutrons when paired with a digital radiographic panel, and array performance was evaluated using ASTM methods for dSNRn determination. Additionally, the development of fast-curing plastic scintillator (FCPS) formulations is highly attractive because it facilitates the 3D-printing of complete pixelated plastic scintillator arrays for radiation detection and localization. Future advancements in this area will significantly reduce the time and costs associated with current array manufacturing techniques. Some early investigations of FCPS samples sensitized with 5 wt% Bi is discussed herein, with their gamma detection efficiencies and associated light yields compared to an equivalent sample of EJ-256. These early unoptimized samples provided similar but not superior performance to EJ-256, and this is an ongoing area of research at the Air Force Institute of Technology.",

keywords = "Plastic scintillator, dual-particle imaging (DPI), fast-curing plastic scintillator (FCPS), high-Z loading, neutron radiography, x-ray radiography",

author = "Decker, {A. W.} and Manfredi, {J. J.} and Febbraro, {M. T.} and Cherepy, {N. J.} and S. Hok and Hausladen, {P. A.} and Hayward, {J. P.}",

year = "2023",

doi = "10.1117/12.2682216",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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Decker, AW, Manfredi, JJ, Febbraro, MT, Cherepy, NJ, Hok, S, Hausladen, PA & Hayward, JP 2023, DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS. in NJ Cherepy, M Fiederle & RB James (eds), Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV., 1269608, Proceedings of SPIE - The International Society for Optical Engineering, vol. 12696, SPIE, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV 2023, San Diego, United States, 08/21/23. https://doi.org/10.1117/12.2682216

DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS. / Decker, A. W.; Manfredi, J. J.; Febbraro, M. T. et al.
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV. ed. / Nerine J. Cherepy; Michael Fiederle; Ralph B. James. SPIE, 2023. 1269608 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12696).

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

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AU - Manfredi, J. J.

AU - Febbraro, M. T.

AU - Cherepy, N. J.

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AU - Hayward, J. P.

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N2 - Recent material advancements in plastic scintillators enable marked increases in material light yield, detection efficiency, pulse-shape discrimination, and array production rates. These advances may resolve significant capability gaps for low-cost, portable, and durable dual-particle imaging (DPI) systems for nuclear safety, security and safeguard purposes. Two such materials, both 21% bismuth-loaded plastics utilizing iridium complex fluorophores (Ir-Bi-Plastic) were experimentally evaluated for DPI purposes as a small, pixelated radiographic array and compared to similar arrays made from EJ-200 and EJ-256 (5 wt% Pb). Experimentation involved separate exposures to 370 kVp x-rays and 14.1 MeV neutrons when paired with a digital radiographic panel, and array performance was evaluated using ASTM methods for dSNRn determination. Additionally, the development of fast-curing plastic scintillator (FCPS) formulations is highly attractive because it facilitates the 3D-printing of complete pixelated plastic scintillator arrays for radiation detection and localization. Future advancements in this area will significantly reduce the time and costs associated with current array manufacturing techniques. Some early investigations of FCPS samples sensitized with 5 wt% Bi is discussed herein, with their gamma detection efficiencies and associated light yields compared to an equivalent sample of EJ-256. These early unoptimized samples provided similar but not superior performance to EJ-256, and this is an ongoing area of research at the Air Force Institute of Technology.

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Decker AW, Manfredi JJ, Febbraro MT, Cherepy NJ, Hok S, Hausladen PA et al. DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS. In Cherepy NJ, Fiederle M, James RB, editors, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXV. SPIE. 2023. 1269608. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2682216

DUAL PARTICLE IMAGING WITH IRIDIUM-BISMUTH AND FAST-CURING PLASTIC SCINTILLATORS

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Keywords

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