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Effect of charging-up and regular usage on performance of the triple GEM detector to be employed for plasma radiation monitoring

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dc.abstract.en<p>After the problem of high-temperature plasma confinement, construction of diagnostics that is able to identify plasma contamination with impurities and to determine impurity distribution is another critically important issue. Solution of this problem would enable progress towards the success in controlled thermonuclear fusion. A new diagnostics, based on Gas Electron Multiplier (GEM) technology, has been recently developed for poloidal tomography focused on radiation of the metal impurities by monitoring in Soft X-Ray (SXR) region. GEM based detectors would undergo much less damage by neutrons than standard semiconductor diodes which results in better operational stability. This paper emphasizes the results of the latest examination of this type of detectors, showing influence of the charging-up effect on the detector performance and its physical properties for expected plasma radiation intensity. In addition, an undesired influence of aging of the detector window's material on the performance of the GEM detector is also shown: regular (moderate or active) usage could lead to changes of material's morphology as well as its composition. This study confirms the importance of further research into material's optimization of GEM detectors used as a base for SXR tomographic diagnostics aimed to work under different plasma radiation conditions.</p>
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMelikhov, Yevgen
dc.contributor.authorKrawczyk, Rafał D.
dc.contributor.authorWojeński, Andrzej
dc.contributor.authorMalinowski, Karol
dc.contributor.authorChernyshova, Maryna
dc.contributor.authorCzarski, Tomasz
dc.contributor.authorKowalska-Strzęciwilk, Ewa
dc.contributor.authorDemchenko, Iraida
dc.date.accessioned2024-01-24T22:30:40Z
dc.date.available2024-01-24T22:30:40Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.volume158
dc.identifier.doi10.1016/J.FUSENGDES.2020.111755
dc.identifier.issn0920-3796
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/105803
dc.identifier.weblinkhttps://reader.elsevier.com/reader/sd/pii/S0920379620303033?token=681105DFF9C727B87DA07AB64DB45137F58342D05D8CB0C7DDC05A4CEEE0B189A583D6A091EC763728C5A39D4D15EBFD
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofFusion Engineering and Design
dc.relation.pagesart.no. 111755
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enNuclear instruments for hot plasma diagnostics
dc.subject.enX-ray detectors
dc.subject.enElectron multipliers (gas)
dc.subject.enMicropattern gaseous detectors
dc.subject.enCharging-up effect
dc.subject.enDetector window’s material
dc.titleEffect of charging-up and regular usage on performance of the triple GEM detector to be employed for plasma radiation monitoring
dc.typeJournalArticle
dspace.entity.typePublication