Computerized Tomography with High-Energy Proton Beams: Tomographic Image Reconstruction from Computer-Simulated Data
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2004
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| _version_ | 1876452006559744000 |
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| author | Sergei A. Paschuk |
| author_facet | Sergei A. Paschuk |
| contents | Computerized Tomography with High-Energy Proton Beams: Tomographic Image Reconstruction from Computer-Simulated Data Sergei A. Paschuk Hugo R. Schelin Ivan Evseev Margio C. L. Klock João A. P. Setti Reinhard W. Schulte David C. Williams Ricardo T. Lopes Física, Astronomía y Matemáticas The use of protons instead of X-rays for computerized tomography (CT) studies has potential advantages,especially for medical applications in proton treatment planning. However, the spatial resolution of proton CTis limited by multiple Coulomb scattering (MCS). We used the Monte Carlo simulation tool GEANT4 to studythe resolution achievable with different experimental arrangements of a proton CT scanner. The passage of aparallel 200MeV proton beam through a virtual cylindrical aluminum phantom with 50mm external diameterwas simulated. In our study, the phantom contained a set of cylindrical holes with diameters ranging from4mm to 0:5mm. The GEANT4 simulation consisted of a series of 180 projections at 2 degree intervals with350 proton track histories for each one. The filtered back projection algorithm was used to reconstruct a 2Dtomographic image of phantom. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434524 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3A Vol.34 |
| format | Artículo científico |
| id | redalyc_46434524 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Computerized Tomography with High-Energy Proton Beams: Tomographic Image Reconstruction from Computer-Simulated Data Sergei A. Paschuk Física, Astronomía y Matemáticas Computerized Tomography with High-Energy Proton Beams: Tomographic Image Reconstruction from Computer-Simulated Data Sergei A. Paschuk Hugo R. Schelin Ivan Evseev Margio C. L. Klock João A. P. Setti Reinhard W. Schulte David C. Williams Ricardo T. Lopes Física, Astronomía y Matemáticas The use of protons instead of X-rays for computerized tomography (CT) studies has potential advantages,especially for medical applications in proton treatment planning. However, the spatial resolution of proton CTis limited by multiple Coulomb scattering (MCS). We used the Monte Carlo simulation tool GEANT4 to studythe resolution achievable with different experimental arrangements of a proton CT scanner. The passage of aparallel 200MeV proton beam through a virtual cylindrical aluminum phantom with 50mm external diameterwas simulated. In our study, the phantom contained a set of cylindrical holes with diameters ranging from4mm to 0:5mm. The GEANT4 simulation consisted of a series of 180 projections at 2 degree intervals with350 proton track histories for each one. The filtered back projection algorithm was used to reconstruct a 2Dtomographic image of phantom. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434524 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3A Vol.34 |
| title | Computerized Tomography with High-Energy Proton Beams: Tomographic Image Reconstruction from Computer-Simulated Data |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46434524 |