CARNA - A Compact Glass Proton Imager

Wilkinson, Collin J.; Ruane, L.; Miller, W.; Gunsch, A.; Zieser, Adam; Tillman, I. J.; Thune, Z.; Wang, D.; Akgun, U.

doi:10.1109/nssmic.2017.8533076

Cited by 2 publications

(3 citation statements)

References 28 publications

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“…We continued this work by testing a proof-of-concept pCT detector using Monte Carlo simulations [46]. The prototype detector used the scintillating glass activated with europium, which had the most promising optical properties from the pCT image reconstruction study.…”

Section: High-density Scintillating Glassmentioning

confidence: 99%

High-Density Glass Scintillators for Proton Radiography—Relative Luminosity, Proton Response, and Spatial Resolution

Stolen,

Fullarton,

Hein

et al. 2024

Sensors

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Proton radiography is a promising development in proton therapy, and researchers are currently exploring optimal detector materials to construct proton radiography detector arrays. High-density glass scintillators may improve integrating-mode proton radiography detectors by increasing spatial resolution and decreasing detector thickness. We evaluated several new scintillators, activated with europium or terbium, with proton response measurements and Monte Carlo simulations, characterizing relative luminosity, ionization quenching, and proton radiograph spatial resolution. We applied a correction based on Birks’s analytical model for ionization quenching. The data demonstrate increased relative luminosity with increased activation element concentration, and higher relative luminosity for samples activated with europium. An increased glass density enables more compact detector geometries and higher spatial resolution. These findings suggest that a tungsten and gadolinium oxide-based glass activated with 4% europium is an ideal scintillator for testing in a full-size proton radiography detector.

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Section: High-density Scintillating Glassmentioning

confidence: 99%

High-Density Glass Scintillators for Proton Radiography—Relative Luminosity, Proton Response, and Spatial Resolution

Stolen,

Fullarton,

Hein

et al. 2024

Sensors

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“…The pCT images simulated in this study serve as a continuation of the proposal outlined by Akgun et al [18], [19], [20], [33], and are performed using simulations of the detector material in the compact glass proton imager. The detector is composed of 70 layers of 100 mm × 1 mm × 1 mm glass bars, arranged in an alternating orientation of 100 bars per layer, for a total size of 10 cm×10 cm×7 cm.…”

Section: A Scintillating Glass Propertiesmentioning

confidence: 99%

“…In addition to problems of technical feasibility due to multiple Coulomb scattering, adoption of pCT has been im-Adam Zieser and Yasar Onel are with the Department of Physics & Astronomy, University of Iowa, IA 52242 USA (e-mail: adam-zieser@uiowa.edu; yasar-onel@uiowa.edu) Ugur Akgun is with the Physics Department, Coe College, IA 52402 USA (e-mail: uakgun@coe.edu) peded by the high costs associated with generating MeVgrade protons. Akgun et al [18], [19], [20] have proposed a cheap, compact, high-density scintillating glass calorimeter, which can be attached to existing proton therapy gantries for use in pCT or range verification in proton therapy treatment planning. The glass, which can be created with cheap reagents using a standard melt-quench glass-making technique, avoids the high costs associated with expensive scintillating crystals like LSO or BGO.…”

Section: Introductionmentioning

confidence: 99%

Reconstructed pCT Images Using Monte Carlo Simulations of a Scintillating Glass Detector

Zieser¹,

Akgun²,

Onel³

2022

Preprint

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The high cost and low image quality traditionally associated with proton computed tomography (pCT) have prevented it from seeing significant use in clinical settings. A cheap, compact, high-density scintillating glass detector capable of being attached to existing proton therapy gantries may help address these concerns. The design of the detector allows for use in conjunction with single-proton counting reconstruction algorithms, as well as beam-based algorithms that do not resolve individual protons within an accelerator bunch. This study presents quantitative reconstructed images of proton stopping power from Monte Carlo generated pCT scans using the radiation transport code MCNP6, demonstrating the feasibility of proton imaging using this detector design. Relative error and contrast have been examined and compared for images reconstructed using two reconstruction algorithms: a standard filtered backprojection algorithm to act as a benchmark, and a variant of a pCT algorithm which utilizes the concept of distancedriven binning.

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CARNA - A Compact Glass Proton Imager

Cited by 2 publications

References 28 publications

High-Density Glass Scintillators for Proton Radiography—Relative Luminosity, Proton Response, and Spatial Resolution

High-Density Glass Scintillators for Proton Radiography—Relative Luminosity, Proton Response, and Spatial Resolution

Reconstructed pCT Images Using Monte Carlo Simulations of a Scintillating Glass Detector

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