Sandun Jayarathna Pahula Hewage, Ph.D.
Department of Radiation Physics, Division of Radiation Oncology
Present Title & Affiliation
Primary Appointment
Assistant Professor, Division of Dept of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
Education & Training
Degree-Granting Education
| 2015 | The University of Houston, Houston, TX, USA, PHD, High-Energy Physics |
| 2013 | The University of Houston, Houston, TX, USA, MS, High-Energy Physics |
| 2009 | University of Peradeniya, Kandy, LKA, MS, Physics |
| 2006 | University of Peradeniya, Kandy, LKA, BS, Physics, Pure Mathematics, and Applied Mathematics |
Board Certifications
| 2022 | American Board of Radiology |
Experience & Service
Other Appointments/Responsibilities
Radiation Oncology Medical Physics Resident, The University of Kansas Cancer Center, Kansas City, KS, 2020 - 2022
Teaching Assistant, The University of Houston, Houston, TX, 2010 - 2011
Honors & Awards
| 2014 | Student support, 24th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Darmstadt, Germany |
| 2012 | Student travel award, 23rd International Quark Matter Conference, Washington, D.C |
Professional Memberships
Selected Publications
Peer-Reviewed Articles
- Moktan H, Jayarathna S, Cho SH. Sensitivity enhancement of an experimental benchtop x-ray fluorescence imaging system by deploying a single crystal cadmium telluride detector system optimized for high flux x-ray operations. Nucl Instrum Methods Phys Res A 1025, 2022. e-Pub 2021. PMID: 35340930.
- Jayarathna S, Moktan H, Cho SH. Use of the Fully Spectroscopic Pixelated Cadmium Telluride Detector for Benchtop X-Ray Fluorescence Computed Tomography. IEEE Access 10:105074-105083, 2022. e-Pub 2022. PMID: 36274671.
- Jayarathna S, Ahmed MF, O'Ryan L, Moktan H, Cui Y, Cho SH. Characterization of a Pixelated Cadmium Telluride Detector System Using a Polychromatic X-Ray Source and Gold Nanoparticle-Loaded Phantoms for Benchtop X-Ray Fluorescence Imaging. IEEE Access 9:49912-49919, 2021. e-Pub 2021. PMID: 33996343.
- Moktan H, Jayarathna S, Cho SH.. Sensitivity enhancement of an experimental benchtop x-ray fluorescence imaging system by deploying a single crystal cadmium telluride detector system optimized for high flux x-ray operations. Nucl Instrum Methods Phys Res A(1025:166198). e-Pub 2021. PMID: 35340930.
- Moktan H, Ahmed MF, Jayarathna S, Deng L, Cho SH. Monte Carlo study of x-ray detection configurations for benchtop x-ray fluorescence computed tomography of gold nanoparticle-loaded objects. Phys Med Biol 65(17):175010, 2020. e-Pub 2020. PMID: 32869750.
- Manohar N, Reynoso F, Jayarathna S, Moktan H, Ahmed MF, Diagaradjane P, Krishnan S, Cho SH. High-sensitivity imaging and quantification of intratumoral distributions of gold nanoparticles using a benchtop x-ray fluorescence imaging system. Opt Lett 44(21):5314-5317, 2019. PMID: 31674996.
- Jayarathna S, Manohar N, Ahmed MF, Krishnan S, Cho SH. Evaluation of dose point kernel rescaling methods for nanoscale dose estimation around gold nanoparticles using Geant4 Monte Carlo simulations. Sci Rep 9(1):3583, 2019. e-Pub 2019. PMID: 30837578.
- Deng L, Yasar S, Ahmed MF, Jayarathna S, Feng P, Wei B, Vedantham S, Karellas A, Cho SH.. Investigation of transmission computed tomography (CT) image quality and x-ray dose achievable from an experimental dual-mode benchtop x-ray fluorescence CT and transmission CT system. J Xray Sci Technol(27(3):431-442). e-Pub 2019. PMID: 30909268.
Other Articles
- Jayarathna S, Ahmed Md, Cho SH. Geant4-based Model of a Mouse Injected with Gold Nanoparticles for X-Ray Tomography Simulation Studies. IEEE 13th International Conference on Nano/Molecular Medicine & Engineering (NANOMED):71-76, 2019.
- Jayarathna S, Ahmed Md, Cho SH Fabrication and Testing of a Gold Nanoparticle-loaded Tissue-mimicking Phantom for Validation of Gold L-shell X-ray Fluorescence Imaging Results. IEEE 13th International Conference on Nano/Molecular Medicine & Engineering (NANOMED):22-25, 2019.
- Ahmed Md, Jayarathna S, Cho SH Feasibility of X-ray Fluorescence Computed Tomography (XFCT) Imaging of Human Lung Tumors loaded with Gold Nanoparticles. IEEE 12th International Conference on Nano/Molecular Medicine and Engineering (NANOMED):250-254, 2018.
- Jayarathna S. Strangeness production in two-particle azimuthal correlations on the near and away sides measured with ALICE in pp collisions at 7 TeV. Proceedings of the 2nd Annual Large Hadron Collider Physics Conference (LHCP) conference, 2014.
Abstracts
- Jayarathna S, Reddy K, Li H, Guida K.. Investigation of knowledge-based treatment planning models integrated with multi-Criteria Optimization for an upcoming clinical trial. AAPM Annual Meeting, Interactive e-Poster, 2022.
- Jayarathna S, Hoover A, Clarke J, Badkul R.. Clinical evaluation of dosimetric impact of applicator displacements on 3D gynecological high dose rate brachytherapy treatments. AAPM Annual Meeting, Poster, 2022.
- Jayarathna S, Johnson D.. A qualitative comparison of open-source toolkit for MLC trajectory log file analysis with commercially available software. AAPM MRV Chapter Annual Meeting, Oral presentation, 2022.
- Jayarathna S, Howard S, Johnson D.. A Clinical Evaluation of An Open-Source Toolkit for TG-142 Based Monthly Imaging Quality Assurance Via Comparison with Commercial Software. AAPM Annual Meeting, Poster, 2021.
- Jayarathna S, Ahmed Md, Cho SH.. Effect of Photon Incidence Angle on the Accuracy of the Dose Point Kernel Method for Calculation of Gold Nanoparticle-Mediated Intracellular Dose Enhancement. AAPM Annual Meeting, Oral presentation, 2020.
- Jayarathna S, Tailor R, Cho SH. A custom-made jig for in-air ionization chamber measurements and quality assurance of the Mark I-68 Cs-137 irradiator. AAPM Annual Meeting, Poster, 2020.
- Jayarathna S, Ahmed Md, Cho SH.. Validation of Direct Gold L-Shell X-Ray Fluorescence Imaging Results Using a Tissue Mimicking Phantom Containing Gold Nanoparticles. AAPM Annual Meeting, Oral presentation, 2019.
- Jayarathna S, Tailor R, Cho SH.. An Ionization Chamber Mounting Jig for In-Air Output Calibration and Quality Assurance of Commercial Cs-137 Irradiators. AAPM Annual Meeting, Poster, 2019.
- Jayarathna S,. Ahmed Md, Cho SH. An Image-Based Mouse Model for Geant4 Monte Carlo Simulations of Multimodal Imaging with Benchtop X-Ray Fluorescence CT (XFCT) and Micro-CT. AAPM Annual Meeting, Oral presentation, 2018.
- Jayarathna S, Krishnan S, Cho SH. Development of a TEM Image-Based Cellular Geometry Model for Geant4 Monte Carlo Simulations of GNP-Mediated radio sensitization. AAPM Annual Meeting, Oral presentation, 2018.
- Jayarathna S, Manohar N, Cho SH.. Application of the Dose Point Kernel Method for Nanoscale Dose Calculations Around Gold Nanoparticles. AAPM Annual Meeting, Oral presentation, 2017.
- Jayarathna S.. Strange quark production in proton collisions at ALICE using azimuthal correlations. Quark Matter, Poster, 2014.
- Jayarathna S.. Strange baryon vs meson ratio in near-side and away-side jets in proton collisions at ALICE using azimuthal correlations. APS April Meeting, Oral presentation, 2014.
- Jayarathna S.. Jet-hadron azimuthal correlations in proton collisions at ALICE at √(S_NN ) = 7 TeV. Large Hadron Collider Physics, Poster, 2014.