Search Results - "Sawakuchi, G."

Reference dosimetry in magnetic fields: formalism and ionization chamber correction factors by O’Brien, D. J., Roberts, D. A., Ibbott, G. S., Sawakuchi, G. O.

“…Purpose: Magnetic resonance imaging–guided radiotherapy (MRIgRT) provides superior soft-tissue contrast and real-time imaging compared with standard…”
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MRIgRT head and neck anthropomorphic QA phantom: Design, development, reproducibility, and feasibility study by Steinmann, A., Alvarez, P., Lee, H., Court, L., Stafford, R., Sawakuchi, G., Wen, Z., Fuller, C. D., Followill, D.

“…Purpose The purpose of this paper was to design, manufacture, and evaluate a tissue equivalent, dual magnetic resonance/computed tomography (MR/CT) visible…”
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MRIgRT dynamic lung motion thorax anthropomorphic QA phantom: Design, development, reproducibility, and feasibility study by Steinmann, A., Alvarez, P., Lee, H., Court, L., Stafford, R., Sawakuchi, G., Wen, Z., Fuller, C., Followill, D.

“…Purpose To design, manufacture, and evaluate a dynamic magnetic resonance imaging/computed tomography (MRI/CT)‐compatible anthropomorphic thorax phantom used…”
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Investigation of TLD and EBT3 performance under the presence of 1.5T, 0.35T, and 0T magnetic field strengths in MR/CT visible materials by Steinmann, A., O'Brien, D., Stafford, R., Sawakuchi, G., Wen, Z., Court, L., Fuller, C., Followill, D.

“…Purpose The aim of this study was to investigate thermoluminescent dosimeters (TLD) and radiochromic EBT3 film inside MR/CT visible geometric head and thorax…”
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Commissioning dose computation models for spot scanning proton beams in water for a commercially available treatment planning system by Zhu, X. R., Poenisch, F., Lii, M., Sawakuchi, G. O., Titt, U., Bues, M., Song, X., Zhang, X., Li, Y., Ciangaru, G., Li, H., Taylor, M. B., Suzuki, K., Mohan, R., Gillin, M. T., Sahoo, N.

“…Purpose: To present our method and experience in commissioning dose models in water for spot scanning proton therapy in a commercial treatment planning system…”
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Comparing stochastic proton interactions simulated using TOPAS-nBio to experimental data from fluorescent nuclear track detectors by Underwood, T S A, Sung, W, McFadden, C H, McMahon, S J, Hall, D C, McNamara, A L, Paganetti, H, Sawakuchi, G O, Schuemann, J

“…Whilst Monte Carlo (MC) simulations of proton energy deposition have been well-validated at the macroscopic level, their microscopic validation remains…”
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SU‐E‐T‐91: Validation of Geant4 Physics for Ionization Chamber Calculations in Radiotherapy Photon Beams by Chequers, MH, Sawakuchi, GO

“…Purpose: To determine the accuracy of the GEANT4 Monte Carlo toolkit for ionization chamber calculations in radiotherapy photon beams. Methods: First, we used…”
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SU‐E‐T‐119: A Phenomenological Model of the Al2O3:C Optically Stimulated Luminescence Detector (OSLD) Fading by Sawakuchi, G, Yukihara, E

“…Purposes: To explain the causes of fading in the Al2O3:C optically stimulated luminescence detectors (OSLDs). Methods: A phenomenological band diagram model…”
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SU‐E‐T‐98: Towards Cell Nucleus Microdosimetry: Construction of a Confocal Laser‐Scanning Fluorescence Microscope to Readout Fluorescence Nuclear Track Detectors (FNTDs) by McFadden, C, Bartz, J, Akselrod, M, Sawakuchi, G

“…Purpose: To construct a custom confocal laser scanning microscope (CLSM) capable of resolving individual proton tracks in the volume of an Al2O3:C,Mg…”
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SU‐E‐T‐67: The Role of Different Luminescence Centers on the Dose Response of Al2O3:C OSLDs: A Systematic Investigation Using Continuous Wave and Pulsed OSL Readouts by Flint, D, Granville, D, Sawakuchi, G

“…Purpose: To characterize the dose response of optically stimulated luminescence (OSL) from Al2O3:C detectors (OSLDs) using continuous wave (CWOSL) and pulsed…”
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SU‐E‐T‐87: The Effect of Bleaching Wavelengths on the Regeneration of the Optically Stimulated Luminescence Signal of NanoDot Dosimeters Pre‐Exposed to High‐Doses by Omotayo, A, Cygler, J, Sawakuchi, G

“…Purpose: To investigate the effect of bleaching wavelengths on the regeneration of optically stimulated luminescence (OSL) signals in Al2O3:C nanoDot…”
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SU‐E‐T‐22: Is the Residual Range a Universal Quantity to Specify the Quality of Modulated Proton Beams? by Granville, D, Chequers, M, Sawakuchi, G

“…Purpose: To investigate the validity of using the residual range as a universal quantity to specify the quality of modulated proton beams. Methods: We used…”
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SU‐E‐T‐90: Investigation of Different Bleaching Wavelengths on the Absorbed‐Dose Sensitivity of NanoDot OSLDs Exposed to 6 MV X‐Ray Beams by Omotayo, A, Cygler, J, Sawakuchi, G

“…Purpose: To determine the effect of different bleaching wavelengths on the luminescence response of Al2O3:C optically stimulated luminescence detectors (OSLDs)…”
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SU‐E‐T‐76: Construction of a Cost‐Effective and Versatile Optically Stimulated Luminescence Detector (OSLD) Reader for Research by Scullion, A, Yukihara, E, Sawakuchi, G O

“…Purposes: To build a cost‐effective and versatile optically stimulated luminescence detector (OSLD) reader. Methods: An instrument was built to perform three…”
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SU‐E‐T‐106: Experimental Characterization of Al2O3:C Optically Stimulated Luminescence Detector (OSLD) Exposed to 6 MV X‐Ray Beams by Omotayo, A, Cygler, J, Sawakuchi, G O

“…Purposes: To characterize the response of Al2O3:C optically stimulated luminescence detectors (OSLDs) to 6 MV x‐ray beams and to determine the optimal…”
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Medical applications of optically stimulated luminescence dosimeters (OSLDs) by Yukihara, E.G., Gasparian, P.B.R., Sawakuchi, G.O., Ruan, C., Ahmad, S., Kalavagunta, C., Clouse, W.J., Sahoo, N., Titt, U.

“…This work presents an overview of the advances in the application of optically stimulated luminescence (OSL) to dosimetry in diagnostic radiology and radiation…”
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SU‐E‐T‐250: Results of a Survey to Assess the Current Status of In‐Vivo Dosimetry in Canada by Sawakuchi, G O, Archambault, L, Scullion, A, Cygler, J E

“…Purpose: To assess the current status of in‐vivo dosimetry in the Canadian cancer centers. Methods: A survey on the use of in‐vivo dosimetry was performed…”
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MO‐FF‐A3‐04: Biological Effects of Variable RBE in Different Proton Therapy Delivery Modalities by Mirkovic, D, Titt, U, Sawakuchi, G, Mohan, R

“…Purpose: To evaluate and compare dosimetric effects of variable Relative Biological Effectiveness (RBE) in scanning and passive scattering proton therapy…”
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WE‐E‐AUD B‐06: Monte Carlo Study of Proton Beam Energy Spectra Downstream of Density Heterogeneities and the Influence of Multiple Coulomb and Nuclear Scatterings On the Bragg Peak Distal Falloff by Sawakuchi, G, Titt, U

“…Purpose: To investigate the proton beam energy and angular spectra downstream of density heterogeneities and the influence of multiple Coulomb scattering (MCS)…”
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SU‐E‐T‐646: Feasibility Study of Radiobiological Effectiveness‐Based Treatment Plan Optimization for Spot‐Scanned Proton Therapy Beams by Ciangaru, G, Sahoo, N, Sawakuchi, G, Zhu, X, Mohan, R, Gillin, M

“…Purpose: To develop novel methodologies for determination of the relative biological effectiveness (RBE) in treatment plans created with a feasibility search…”
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