Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation
The mechanical-collimation imaging is the most mature technology in prompt gamma (PG) imaging which is considered the most promising technology for beam range verification in proton therapy. The purpose of the present study is to compare the performances of two mechanical-collimation PG cameras, kni...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-04-01
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| Series: | Nuclear Engineering and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573318306430 |
| _version_ | 1819237290579329024 |
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| author | Jong Hoon Park Sung Hun Kim Youngmo Ku Hyun Su Lee Chan Hyeong Kim Dong Ho Shin Jong Hwi Jeong |
| author_facet | Jong Hoon Park Sung Hun Kim Youngmo Ku Hyun Su Lee Chan Hyeong Kim Dong Ho Shin Jong Hwi Jeong |
| author_sort | Jong Hoon Park |
| collection | DOAJ |
| description | The mechanical-collimation imaging is the most mature technology in prompt gamma (PG) imaging which is considered the most promising technology for beam range verification in proton therapy. The purpose of the present study is to compare the performances of two mechanical-collimation PG cameras, knife-edge (KE) camera and multi-slit (MS) camera. For this, the PG cameras were modeled by Geant4 Monte Carlo code, and the performances of the cameras were compared for imaginary point and line sources and for proton beams incident on a cylindrical PMMA phantom. From the simulation results, the KE camera was found to show higher counting efficiency than the MS camera, being able to estimate the beam range even for 107 protons. Our results, however, confirmed that in order to estimate the beam range correctly, the KE camera should be aligned, at least approximately, to the location of the proton beam range. The MS camera was found to show lower efficiency, being able to estimate the beam range correctly only when the number of the protons is at least 108. For enough number of protons, however, the MS camera estimated the beam range correctly, errors being less than 1.2 mm, regardless of the location of the camera. Keywords: Proton therapy, Beam range verification, Prompt gamma, Knife-edge camera, Multi-slit camera |
| first_indexed | 2024-12-23T13:17:59Z |
| format | Article |
| id | doaj.art-74819cf8d7674f6b85bbda5c291acd89 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-23T13:17:59Z |
| publishDate | 2019-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-74819cf8d7674f6b85bbda5c291acd892022-12-21T17:45:33ZengElsevierNuclear Engineering and Technology1738-57332019-04-01512533538Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulationJong Hoon Park0Sung Hun Kim1Youngmo Ku2Hyun Su Lee3Chan Hyeong Kim4Dong Ho Shin5Jong Hwi Jeong6Department of Nuclear Engineering, Hanyang University, Seoul, South KoreaDepartment of Nuclear Engineering, Hanyang University, Seoul, South KoreaDepartment of Nuclear Engineering, Hanyang University, Seoul, South KoreaDepartment of Nuclear Engineering, Hanyang University, Seoul, South KoreaDepartment of Nuclear Engineering, Hanyang University, Seoul, South Korea; Corresponding author.IT Convergence Technology Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon, South KoreaProton Therapy Center, National Cancer Center, Goyang-si, Gyeonggi-do, South KoreaThe mechanical-collimation imaging is the most mature technology in prompt gamma (PG) imaging which is considered the most promising technology for beam range verification in proton therapy. The purpose of the present study is to compare the performances of two mechanical-collimation PG cameras, knife-edge (KE) camera and multi-slit (MS) camera. For this, the PG cameras were modeled by Geant4 Monte Carlo code, and the performances of the cameras were compared for imaginary point and line sources and for proton beams incident on a cylindrical PMMA phantom. From the simulation results, the KE camera was found to show higher counting efficiency than the MS camera, being able to estimate the beam range even for 107 protons. Our results, however, confirmed that in order to estimate the beam range correctly, the KE camera should be aligned, at least approximately, to the location of the proton beam range. The MS camera was found to show lower efficiency, being able to estimate the beam range correctly only when the number of the protons is at least 108. For enough number of protons, however, the MS camera estimated the beam range correctly, errors being less than 1.2 mm, regardless of the location of the camera. Keywords: Proton therapy, Beam range verification, Prompt gamma, Knife-edge camera, Multi-slit camerahttp://www.sciencedirect.com/science/article/pii/S1738573318306430 |
| spellingShingle | Jong Hoon Park Sung Hun Kim Youngmo Ku Hyun Su Lee Chan Hyeong Kim Dong Ho Shin Jong Hwi Jeong Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation Nuclear Engineering and Technology |
| title | Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation |
| title_full | Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation |
| title_fullStr | Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation |
| title_full_unstemmed | Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation |
| title_short | Comparison of knife-edge and multi-slit camera for proton beam range verification by Monte Carlo simulation |
| title_sort | comparison of knife edge and multi slit camera for proton beam range verification by monte carlo simulation |
| url | http://www.sciencedirect.com/science/article/pii/S1738573318306430 |
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