Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김찬형 | - |
dc.date.accessioned | 2018-03-10T04:55:20Z | - |
dc.date.available | 2018-03-10T04:55:20Z | - |
dc.date.issued | 2013-10 | - |
dc.identifier.citation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2013, 63(7), P.1385-1389 | en_US |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.issn | 1976-8524 | - |
dc.identifier.uri | http://link.springer.com/article/10.3938/jkps.63.1385 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/44695 | - |
dc.description.abstract | In proton therapy, accurate monitoring of the in-vivo proton dose distribution is essential in order to deliver the planned dose to the tumor volume within a minimal safety margin. Recently, a strong correlation between the distributions of the proton dose and the prompt gammas was found, and various prompt-gamma distribution-measurement systems, including collimation-based systems, Compton cameras, knife-edge imaging systems, and ion vertex imaging systems, have been proposed. In the present study, the feasibility of proton dose distribution monitoring was tested using a two-dimensional measurement system for prompt gammas. The measurement system, developed in the present study, incorporates a vertically-aligned one-dimensional array of gamma sensors, a parallel multi-hole collimator, a precision movement system, and a digitizer- and LabVIEW-based automatic data acquisition system. A 45-MeV proton beam of 0.5 nA was delivered to a polymethyl methacrylate (PMMA) phantom, and the two-dimensional prompt-gamma distribution was measured using the developed system. The proton beam range could be quantitatively determined to within a 1.6-mm error by sigmoidal curve-fitting with the Boltzmann equation. A comparison of the prompt-gamma distribution as measured by our detection system with the proton dose distribution as measured independently by using Gafchromic EBT films positioned inside the PMMA phantom showed good agreement. Both results imply that it is, indeed, possible to confirm the patient's proton dose distribution by using two-dimensional prompt-gamma measurements. | en_US |
dc.description.sponsorship | This research was supported by the National Nuclear R&D Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (No. 2010-0028913, 2012M2A8A5026057, 2012-K001146). | en_US |
dc.language.iso | en | en_US |
dc.publisher | KOREAN PHYSICAL SOC, 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA | en_US |
dc.subject | Proton therapy | en_US |
dc.subject | Prompt-gamma | en_US |
dc.subject | Parallel multi-hole collimator | en_US |
dc.subject | Multi-channel data acquisition | en_US |
dc.subject | Two-dimensional (2D) distribution | en_US |
dc.subject | BEAM RANGE VERIFICATION | en_US |
dc.subject | MEASUREMENT SYSTEM | en_US |
dc.subject | THERAPY | en_US |
dc.subject | CAMERA | en_US |
dc.subject | SLIT | en_US |
dc.title | Two-dimensional measurement of the prompt-gamma distribution for proton dose distribution monitoring | en_US |
dc.type | Article | en_US |
dc.relation.no | 7 | - |
dc.relation.volume | 63 | - |
dc.identifier.doi | 10.3938/jkps.63.1385 | - |
dc.relation.page | 1385-1389 | - |
dc.relation.journal | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.contributor.googleauthor | Lee, Han Rim | - |
dc.contributor.googleauthor | Park, Jong Hoon | - |
dc.contributor.googleauthor | Kim, Han Sung | - |
dc.contributor.googleauthor | Kim, Chan Hyeong | - |
dc.contributor.googleauthor | Kim, Seonghoon | - |
dc.relation.code | 2013011054 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF NUCLEAR ENGINEERING | - |
dc.identifier.pid | chkim | - |
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