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Compact bunker shielding assessment for 1.5 T MR-Linac
DC Field | Value | Language |
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dc.contributor.author | 김준원 | - |
dc.contributor.author | 성지원 | - |
dc.contributor.author | 이익재 | - |
dc.contributor.author | 이호 | - |
dc.date.accessioned | 2022-07-08T03:22:36Z | - |
dc.date.available | 2022-07-08T03:22:36Z | - |
dc.date.issued | 2022-04 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/188816 | - |
dc.description.abstract | This study evaluated the effect of the 1.5 T magnetic field of the magnetic resonance-guided linear accelerator (MR-Linac) on the radiation leakage doses penetrating the bunker radiation shielding wall. The evaluated 1.5 T MR-Linac Unity system has a bunker of the minimum recommended size. Unlike a conventional Linac, both primary beam transmission and secondary beam leakage were considered independently in the design and defined at the machine boundary away from the isocenter. Moreover, additional shielding was designed considering the numerous ducts between the treatment room and other rooms. The Linac shielding was evaluated by measuring the leakage doses at several locations. The intrinsic vibration and magnetic field were inspected at the proposed isocenter of the system. For verification, leakage doses were measured before and after applying the magnetic field. The intrinsic vibration and magnetic field readings were below the permitted limit. The leakage dose (0.05-12.2 µSv/week) also complied with internationally stipulated limits. The special shielding achieved a five-fold reduction in leakage dose. Applying the magnetic field increased the leakage dose by 0.12 to 4.56 µSv/week in several measurement points, although these values fall within experimental uncertainty. Thus, the effect of the magnetic field on the leakage dose could not be ascertained. | - |
dc.description.statementOfResponsibility | open | - |
dc.language | English | - |
dc.publisher | Nature Publishing Group | - |
dc.relation.isPartOf | SCIENTIFIC REPORTS | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.subject.MESH | Magnetic Fields | - |
dc.subject.MESH | Magnetic Resonance Imaging | - |
dc.subject.MESH | Particle Accelerators* | - |
dc.subject.MESH | Protective Devices | - |
dc.subject.MESH | Radiation Protection* | - |
dc.title | Compact bunker shielding assessment for 1.5 T MR-Linac | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiation Oncology (방사선종양학교실) | - |
dc.contributor.googleauthor | Jiwon Sung | - |
dc.contributor.googleauthor | Yeonho Choi | - |
dc.contributor.googleauthor | Jun Won Kim | - |
dc.contributor.googleauthor | Ik Jae Lee | - |
dc.contributor.googleauthor | Ho Lee | - |
dc.identifier.doi | 10.1038/s41598-022-10498-0 | - |
dc.contributor.localId | A00958 | - |
dc.contributor.localId | A06171 | - |
dc.contributor.localId | A03055 | - |
dc.contributor.localId | A03323 | - |
dc.relation.journalcode | J02646 | - |
dc.identifier.eissn | 2045-2322 | - |
dc.identifier.pmid | 35468983 | - |
dc.contributor.alternativeName | Kim, Jun Won | - |
dc.contributor.affiliatedAuthor | 김준원 | - |
dc.contributor.affiliatedAuthor | 성지원 | - |
dc.contributor.affiliatedAuthor | 이익재 | - |
dc.contributor.affiliatedAuthor | 이호 | - |
dc.citation.volume | 12 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 6712 | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, Vol.12(1) : 6712, 2022-04 | - |
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