G
George Coutrakon
Researcher at Northern Illinois University
Publications - 65
Citations - 1251
George Coutrakon is an academic researcher from Northern Illinois University. The author has contributed to research in topics: Proton therapy & Imaging phantom. The author has an hindex of 18, co-authored 65 publications receiving 1142 citations. Previous affiliations of George Coutrakon include Loma Linda University Medical Center.
Papers
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Patent
Normalizing and calibrating therapeutic radiation delivery systems
David B. Legg,George Coutrakon,Jon W. Slater,Daniel W. Miller,Michael F. Moyers,Jeffrey V. Siebers +5 more
TL;DR: In this paper, a prescribed treatment plan is compared to a database of pre-existing and pre-calibrated treatment plans, and appropriate calibration factors are assigned to the delivery system monitors (32, 36, 42) according to the preexisting plan.
Journal ArticleDOI
Microdosimetry spectra of the Loma Linda proton beam and relative biological effectiveness comparisons.
George Coutrakon,J. Cortese,A Ghebremedhin,J. Hubbard,J. Johanning,P Koss,G. Maudsley,C. R. Slater,C. Zuccarelli,J. Robertson +9 more
TL;DR: Microdosimetry spectra for the proton beam at various energies and depths are presented and compared to cell survival studies performed at Loma Linda and it is concluded that the variations in measured RBE with beam energy and depth are small until the distal edge of the beam is reached.
Journal ArticleDOI
Water-equivalent path length calibration of a prototype proton CT scanner.
R. F. Hurley,Reinhard W. Schulte,Vladimir Bashkirov,Andrew J. Wroe,A Ghebremedhin,Hartmut Sadrozinski,V. Rykalin,George Coutrakon,P Koss,Baldev Patyal +9 more
TL;DR: The method presented provides a simple and reliable procedure for calibration of a pCT scanner that produces measured RSP values of various tissue-equivalent materials that agree to within 0.5% of values obtained using an established water-tank method.
Journal ArticleDOI
A prototype beam delivery system for the proton medical accelerator at Loma Linda
George Coutrakon,M. Bauman,David A. Lesyna,Daniel W. Miller,J. Nusbaum,Jon W. Slater,J. Johanning,J. Miranda,Paul M. DeLuca,Jeffrey V. Siebers,B. A. Ludewigt +10 more
TL;DR: A prototype beam delivery system capable of delivering precise dose distributions to the target volume in the patient was tested during the accelerator's commissioning period and provided a uniform proton dose distribution in a cylindrical volume of 20-cm-diam area and 9-cm depth.
Journal ArticleDOI
Leakage and scatter radiation from a double scattering based proton beamline.
TL;DR: Simulations illustrated that most of the neutrons entering the patient are produced in the final patient-specific aperture and precollimator just upstream of the aperture, not in the scattering system.