Magnetic shielding investigation for a 6 MV in-line linac within the parallel configuration of a linac-MR system.
Identifieur interne : 000792 ( Main/Exploration ); précédent : 000791; suivant : 000793Magnetic shielding investigation for a 6 MV in-line linac within the parallel configuration of a linac-MR system.
Auteurs : D M Santos [Canada] ; J. St Aubin ; B G Fallone ; S. SteciwSource :
- Medical physics [ 0094-2405 ] ; 2012.
English descriptors
- KwdEn :
- Artifacts, Computer Simulation, Computer-Aided Design, Equipment Design, Equipment Failure Analysis, Image Enhancement (instrumentation), Magnetic Resonance Imaging (instrumentation), Models, Theoretical, Particle Accelerators, Radiation Protection (instrumentation), Radiotherapy, High-Energy (instrumentation), Radiotherapy, Image-Guided (instrumentation).
- MESH :
Abstract
In our current linac-magnetic resonance (MR) design, a 6 MV in-line linac is placed along the central axis of the MR's magnet where the MR's fringe magnetic fields are parallel to the overall electron trajectories in the linac waveguide. Our previous study of this configuration comprising a linac-MR SAD of 100 cm and a 0.5 T superconducting (open, split) MR imager. It showed the presence of longitudinal magnetic fields of 0.011 T at the electron gun, which caused a reduction in target current to 84% of nominal. In this study, passive and active magnetic shielding was investigated to recover the linac output losses caused by magnetic deflections of electron trajectories in the linac within a parallel linac-MR configuration.
DOI: 10.1118/1.3676692
PubMed: 22320788
Affiliations:
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Le document en format XML
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St Aubin</name></author><author><name sortKey="Fallone, B G" sort="Fallone, B G" uniqKey="Fallone B" first="B G" last="Fallone">B G Fallone</name></author><author><name sortKey="Steciw, S" sort="Steciw, S" uniqKey="Steciw S" first="S" last="Steciw">S. 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St Aubin</name></author><author><name sortKey="Fallone, B G" sort="Fallone, B G" uniqKey="Fallone B" first="B G" last="Fallone">B G Fallone</name></author><author><name sortKey="Steciw, S" sort="Steciw, S" uniqKey="Steciw S" first="S" last="Steciw">S. Steciw</name></author></analytic><series><title level="j">Medical physics</title><idno type="ISSN">0094-2405</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Artifacts</term><term>Computer Simulation</term><term>Computer-Aided Design</term><term>Equipment Design</term><term>Equipment Failure Analysis</term><term>Image Enhancement (instrumentation)</term><term>Magnetic Resonance Imaging (instrumentation)</term><term>Models, Theoretical</term><term>Particle Accelerators</term><term>Radiation Protection (instrumentation)</term><term>Radiotherapy, High-Energy (instrumentation)</term><term>Radiotherapy, Image-Guided (instrumentation)</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Image Enhancement</term><term>Magnetic Resonance Imaging</term><term>Radiation Protection</term><term>Radiotherapy, High-Energy</term><term>Radiotherapy, Image-Guided</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Artifacts</term><term>Computer Simulation</term><term>Computer-Aided Design</term><term>Equipment Design</term><term>Equipment Failure Analysis</term><term>Models, Theoretical</term><term>Particle Accelerators</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In our current linac-magnetic resonance (MR) design, a 6 MV in-line linac is placed along the central axis of the MR's magnet where the MR's fringe magnetic fields are parallel to the overall electron trajectories in the linac waveguide. Our previous study of this configuration comprising a linac-MR SAD of 100 cm and a 0.5 T superconducting (open, split) MR imager. It showed the presence of longitudinal magnetic fields of 0.011 T at the electron gun, which caused a reduction in target current to 84% of nominal. In this study, passive and active magnetic shielding was investigated to recover the linac output losses caused by magnetic deflections of electron trajectories in the linac within a parallel linac-MR configuration.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Fallone, B G" sort="Fallone, B G" uniqKey="Fallone B" first="B G" last="Fallone">B G Fallone</name><name sortKey="St Aubin, J" sort="St Aubin, J" uniqKey="St Aubin J" first="J" last="St Aubin">J. St Aubin</name><name sortKey="Steciw, S" sort="Steciw, S" uniqKey="Steciw S" first="S" last="Steciw">S. Steciw</name></noCountry><country name="Canada"><noRegion><name sortKey="Santos, D M" sort="Santos, D M" uniqKey="Santos D" first="D M" last="Santos">D M Santos</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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