Zobrazeno 1 - 10
of 133
pro vyhledávání: '"G, Ciangaru"'
Autor:
Michael Gillin, A. Anand, Radhe Mohan, Narayan Sahoo, Richard A. Amos, G. Ciangaru, Gabriel O. Sawakuchi, Falk Poenisch, Uwe Titt, Kazumichi Suzuki, X. Ronald Zhu
Publikováno v:
Medical Physics. 39:891-900
Purpose: Planar integral spot dose (PISD) of proton pencil beam spots (PPBSs) is a required input parameter for beam modeling in some treatment planning systems used in proton therapy clinics. The measurement of PISD by using commercially available l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c7d2fea2dec8df03e63fbf7a3b8dd59
https://doi.org/10.1118/1.3671891
https://doi.org/10.1118/1.3671891
Publikováno v:
Medical Physics. 37:5831-5837
Purpose: The purpose of this study was to determine whether a two-dimensional (2D) ion chamber array detector quickly and accurately measures patient-specific dose distributions in treatment with passively scattered and spot scanning proton beams. Me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea87adb0deab11e1dfdcca96ca4dc179
https://doi.org/10.1118/1.3505011
https://doi.org/10.1118/1.3505011
Autor:
L Perles, X. Ron Zhu, Kazumichi Suzuki, Radhe Mohan, Narayan Sahoo, Michael Gillin, Dragan Mirkovic, Gabriel O. Sawakuchi, G. Ciangaru, Uwe Titt
Publikováno v:
Medical Physics. 37:4960-4970
Purpose: The purposes of this study were to validate a discrete spot scanning proton beam nozzle using the Monte Carlo (MC) code MCNPX and use the MC validated model to investigate the effects of a low-dose envelope, which surrounds the beam's centra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::340a38485836827d9be4432cd3771b7d
https://doi.org/10.1118/1.3476458
https://doi.org/10.1118/1.3476458
Autor:
Radhe Mohan, X. Ronald Zhu, Narayan Sahoo, G. Ciangaru, Michael Gillin, Dragan Mirkovic, Gabriel O. Sawakuchi, Uwe Titt
Publikováno v:
Physics in Medicine and Biology. 55:711-721
Scanned proton pencil beams carry a low-dose envelope that extends several centimeters from the individual beam's central axis. Thus, the total delivered dose depends on the size of the target volume and the corresponding number and intensity of beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d119bc7e02f90ec7d24b17c03800fb5
https://doi.org/10.1088/0031-9155/55/3/011
https://doi.org/10.1088/0031-9155/55/3/011
Autor:
G. Ciangaru, Narayan Sahoo, Gabriel O. Sawakuchi, Falk Poenisch, Michael Gillin, Martin Bues, B. Arjomandy, C. Martin, Kazumichi Suzuki, Uwe Titt, Alfred R. Smith, X. Ronald Zhu
Publikováno v:
Medical Physics. 37:154-163
Purpose: To describe a summary of the clinical commissioning of the discrete spot scanning proton beam at the Proton Therapy Center, Houston (PTC-H). Methods: Discrete spot scanning system is composed of a delivery system (Hitachi ProBeat), an electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04c335f1f5bed269861f2c838cba3f7a
https://doi.org/10.1118/1.3259742
https://doi.org/10.1118/1.3259742
Publikováno v:
Physics in Medicine and Biology. 54:7285-7300
In this work we present a study of the impact of considering higher order terms in Molière's multiple Coulomb scattering (MCS) theory for the purpose of calculating scanning proton pencil beam lateral dose profiles in water. The proton beam profile
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c7c289dd90bda4b86b16b07594af0e7
https://doi.org/10.1088/0031-9155/54/24/003
https://doi.org/10.1088/0031-9155/54/24/003
Publikováno v:
Medical Physics. 36:3693-3702
The purpose of this work was to develop a method to calculate and study the impact of fluctuations in the magnetic field strengths within the steering magnets in a proton scanning beam treatment nozzle on the dosedelivered to the patient during a pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ad4db3d97e4d5eae81acdc4f3e9b447
https://doi.org/10.1118/1.3175796
https://doi.org/10.1118/1.3175796
Autor:
C. Martin, G. Ciangaru, Mingping Zhu, John R. Zullo, X. Ding, Michael Gillin, X. Ronald Zhu, Narayan Sahoo, B. Arjomandy, Richard Y. Wu
Publikováno v:
Medical Physics. 36:2269-2282
The number of proton and carbon ion therapy centers is increasing; however, since the publication of the International Commission on Radiation Units and Measurements report, there has been no dedicated report dealing with proton therapy quality assur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b4b24af7979d63d245e5bf2ef2de918
https://doi.org/10.1118/1.3120288
https://doi.org/10.1118/1.3120288
Publikováno v:
Physics in Medicine and Biology. 54:3217-3229
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 Geant4 toolkit. The Monte Carlo model was used to produce depth dose and lateral profiles,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c5794403eed37f47cdc3e4f2256b6f6
https://doi.org/10.1088/0031-9155/54/10/017
https://doi.org/10.1088/0031-9155/54/10/017
Autor:
Ronald X. Zhu, Wayne D. Newhauser, Annelise Giebeler, Jonas D. Fontenot, G. Ciangaru, Peter A. Balter
Publikováno v:
Journal of Applied Clinical Medical Physics
Implanted gold fiducial markers are widely used in radiation therapy to improve targeting accuracy. Recent investigations have revealed that metallic fiducial markers can cause severe perturbations in dose distributions for proton therapy, suggesting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f572aad6f2bd637df097d4409f024100
https://doi.org/10.1120/jacmp.v10i1.2875
https://doi.org/10.1120/jacmp.v10i1.2875