Search Results - "Ciangaru, G"

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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Prompt gamma-ray emission from biological tissues during proton irradiation: a preliminary study by Polf, J C, Peterson, S, Ciangaru, G, Gillin, M, Beddar, S

“…In this paper, we present the results of a preliminary study of secondary 'prompt' gamma-ray emission produced by proton-nuclear interactions within tissue…”
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Experimental validation of a Monte Carlo proton therapy nozzle model incorporating magnetically steered protons by Peterson, S W, Polf, J, Bues, M, Ciangaru, G, Archambault, L, Beddar, S, Smith, A

“…The purpose of this study is to validate the accuracy of a Monte Carlo calculation model of a proton magnetic beam scanning delivery nozzle developed using the…”
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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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SU‐E‐T‐144: Study of the Effect of the Optical Density to Dose Conversion Calibration Curves on the Measurement of Transverse Lateral Dose Profiles of Proton Beams Using Kodak XV Films by Sahoo, N, Anand, A, Martin, C, Ciangaru, G, Poenisch, F, Li, H, Gillin, M, Zhu, X

“…Purpose: To investigate the effect of the optical density (OD) to dose conversion calibration curves on the measurement of transverse lateral dose profiles of…”
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WE‐E‐BRD‐07: Algorithm for Accurate Computation of Doses From Large‐Angle Scattering of Scanned Proton Pencil Beams by Ciangaru, G, Sahoo, N, Zhu, X, Sawakuchi, G, Gillin, M

“…Purpose: The purpose of this work was to find a technique to improve the accuracy of proton pencil beam dose computation for large scattering angles. Methods:…”
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SU‐GG‐T‐463: Study of the Magnitude of Detector Size Effect in the Measured Lateral Profiles of Proton Pencil Beam Spots by Sahoo, N, Ciangaru, G, Sawakuchi, G, Anand, A, Poenisch, F, Suzuki, K, Mohan, R, Gillin, M, Zhu, X

“…Purpose: Lateral profiles of therapeutic radiation beams measured by ionization chambers are known to be affected by their sizes. The purpose of this study is…”
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TH‐C‐BRB‐10: Scanned Proton Pencil Beam's Lateral Profile Library to Describe the Spot Dose Characteristics by Anand, A, Sahoo, N, Zhu, X, Titt, U, Sawakuchi, G, Li, Y, Poenisch, F, Amos, R, Suzuki, K, Ciangaru, G, Mohan, R, Gillin, M

“…Purpose: To create a comprehensive data library of lateral dose profiles to characterize proton pencil beam spots (PPBS) with wide range of energies available…”
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SU‐FF‐T‐288: Spot Position Uncertainty of Scanning Proton Pencil Beam by Li, H, Zhu, X, Ciangaru, G, Sahoo, N, Suzuki, K, Lee, A, Gillin, M

“…Purpose: The accuracy of spot position is essential for scanning beam proton therapy. The purpose of this work is to assess the spot position uncertainty of…”
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SU‐FF‐T‐425: The Causes of the Lateral Envelop of Low Doses in Scanning Proton Beamlets by Sawakuchi, G, Tit, U, Ciangaru, G, Mirkovic, D, Zhu, X, Mohan, R

“…Purpose: A known phenomenon in scanned proton beams is a low dose envelope, namely halo dose, which laterally extends far away from the beamlet axis. This…”
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WE‐D‐BRB‐01: Experimental Characterization of the Low‐Dose Envelope of Spot Scanning Proton Beams by Sawakuchi, G, Zhu, X, Poenisch, F, Suzuki, K, Ciangaru, G, Titt, U, Anand, A, Mohan, R, Gillin, M, Sahoo, N

“…Purpose: To measure the low‐dose envelope of spot scanning proton pencil beams. Method and Materials: Measurements were performed in the spot scanning proton…”
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SU‐FF‐T‐268: Study of Field Size Factors for Passively Scattered Proton Therapy Beams by Wang, X, Sahoo, N, Zhu, X, Ding, X, Arjomandy, B, Ciangaru, G, Gillin, M

“…Purpose: To measure the field size factors (FSF) for passively scattered proton therapy beams and study its dependence on aperture size, proton energy, air gap…”
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SU‐FF‐T‐278: Study of Differences in Lateral Penumbra Widths of Passively Scattered and Spot Scanned Proton Therapy Beams by Sahoo, N, Martin, C, Zhu, X, Ding, X, Arjomandy, B, Ciangaru, G, Gillin, M

“…Purpose: To compare the lateral penumbra widths of passively scattered (PS) and spot scanned (SS) proton therapy beams. Method and Materials: Lateral profiles…”
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Feasibility Study of a Set of Quality Assurance Checks for Spot Scanning Proton Therapy Beams by using a 2-D Ion Chamber Array by Sahoo, N, Zhu, X.R, Arjomandy, B, Ciangaru, G, Ding, X, Gillin, M

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SU‐GG‐T‐250: Effect of Titanium Implants On Therapeutic Proton Dose Delivered to Patients by Ciangaru, G, Sahoo, N, Arjomandy, B, Zhu, X, Gillin, M

“…Purpose: To assess the accuracy of proton beam dose calculation in Eclipse treatment planning system (TPS) in the presence of Titanium rods in the path of the…”
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SU‐GG‐T‐183: Measuring the Spot Size of a Proton Therapy Scanning Nozzle by Bues, M, Ciangaru, G, Gaza, R, Matsuda, K, Gillin, M, Smith, A

“…Purpose: Spot size, i.e. the lateral extent of the proton pencil beams used to compose a patient treatment field, is an important characteristic of a proton…”
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SU‐GG‐T‐89: Dosimetry Characteristics of the Discrete Spot Scanning Proton Beam at PTCH by Gillin, M, Zhu, X, Sahoo, N, Bues, M, Ciangaru, G, Arjomandy, B, Poenisch, F

“…Purpose: To present a summary of the dosimetry features of the discrete spot scanning proton beam at the Proton Therapy Center — Houston. Method and Materials:…”
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TU‐C‐AUD B‐04: Dose Perturbations Caused by Implanted Helical Gold Markers Used in Patients Receiving Proton Radiation Therapy for Prostate Cancer by Giebeler, A, Fontenot, J, Balter, P, Ciangaru, G, Zhu, X, Newhauser, W

“…Purpose: Implanted gold fiducial markers are widely used in radiation therapy to improve targeting accuracy; however recent investigations have revealed that…”
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SU‐GG‐T‐235: A 2D Ion Chamber Array Detector as a QA Device for Spot Scanning Proton Beams by Arjomandy, B, Gillin, M, Zhu, X, Sahoo, N, Ciangaru, G, Bues, M, Poenisch, F, Ding, X

“…Purpose: To evaluate a 2D ion chamber array detector as a quality assurance device for spot scanning proton beams at the Proton Therapy Center‐Houston (PTC‐H)…”
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SU‐FF‐T‐618: Configuration and Validation of a Double Gaussian Dose Model for Scanning Proton Beams by Zhu, X, Sahoo, N, Sawakuchi, G, Lii, M, Ciangaru, G, Bues, M, Pan, X, Zhang, X, Ding, X, Titt, U, Arjomandy, B, Suzuki, K, Mohan, R, Gillin, M

“…Purpose: To configure and validate an improved dose model of a treatment planning system (TPS) for scanning proton beams (SPBs) with a double‐Gaussian function…”
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