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Improvement and recent applications of the Tohoku microbeam system

dc.contributor.authorMATSUYAMA, S.
dc.contributor.authorISHII, K.
dc.contributor.authorWATANABE, K.
dc.contributor.authorTERAKAWA, A.
hal.structure.identifierDepartment of Mechanical System [Hiroshima University]
dc.contributor.authorKIKUCHI, Y.
dc.contributor.authorFUJIWARA, M.
hal.structure.identifierAdvanced Science Research Center and Nuclear Science Research Institute, Japan Atomic Energy Agency
dc.contributor.authorSUGAI, H.
dc.contributor.authorKARAHASHI, M.
dc.contributor.authorNOZAWA, Y.
dc.contributor.authorYAMAUCHI, S.
dc.contributor.authorFUJISAWA, M.
dc.contributor.authorISHIYA, M.
dc.contributor.authorNAGAYA, T.
hal.structure.identifierInterface Physique et Chimie pour le Vivant [IPCV]
dc.contributor.authorORTEGA, R.
hal.structure.identifierInterface Physique et Chimie pour le Vivant [IPCV]
dc.contributor.authorCARMONA, A.
hal.structure.identifierInterface Physique et Chimie pour le Vivant [IPCV]
dc.contributor.authorROUDEAU, S.
dc.date.issued2014
dc.identifier.issn0168-583X
dc.description.abstractEnThe microbeam system at Tohoku University has been applied to various fields since its installation and is mainly used for biological applications. The primary purpose of this work was to develop a 3D μ-CT, in which a microbeam is used as a monoenergetic point X-ray source. The second one was to develop a microbeam analysis system for biological samples. A beam spot of 0.4 × 0.4 μm2 at a beam current of several tens of pA has been produced. However, in our set-up, μ-PIXE/RBS analyses demand beam currents of ca. 100 pA, which restricts the spatial resolution to around 1 × 1 μm2. In order to get higher spatial resolution down to several hundred nm and higher beam current with a several μm resolution, a triplet lens system was designed and newly installed. This upgrade was carried out simultaneously with the recovery from the damage caused by the great east Japan earthquake. The triplet lens system has larger demagnification and was designed by adding a quadrupole lens to the existing doublet system. Although a beam spot size of 2 × 1 μm2 is currently obtained, it has not achieved the performance obtained by the previous doublet system. The doublet system has been recovered to its previous performance and is routinely applied to simultaneous μ-PIXE/RBS analysis in various fields. Recent applications of 3D-PIXE-μ-CT of toxic elements in single cells with the new microbeam system are presented.
dc.language.isoen
dc.publisherElsevier
dc.subjectMicrobeam
dc.subjectDoublet
dc.subjectTriplet
dc.subjectμ-PIXE/RBS analyses
dc.subject3D-PIXE-μ-CT
dc.title.enImprovement and recent applications of the Tohoku microbeam system
dc.typeArticle de revue
dc.identifier.doi10.1016/j.nimb.2013.06.056
dc.subject.halPhysique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det]
bordeaux.journalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
bordeaux.page32-36
bordeaux.volume318
bordeaux.peerReviewedoui
hal.identifierin2p3-00977087
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00977087v1
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