{"paper_id":"010118ec-3c20-4f86-8159-cda8269502f5","body_text":"An approach to create soft X-ray virtual arrays in tomography reconstruction considering non-rigid rotation of the plasma column in the tokamak | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article An approach to create soft X-ray virtual arrays in tomography reconstruction considering non-rigid rotation of the plasma column in the tokamak Mona AHMADI, Pejman KHORSHID, AmirHossein SARI, Jalaledin IZADIAN This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5335201/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract A method was proposed to create Soft X-ray virtual arrays in tomography to study the rigid versus non-rigid rotation of the plasma column in a tokamak. The coordinate reference of the tokamak was transformed into the rotating plasma frame to generate virtual arrays. Data from physical arrays at time t 2 were replaced by virtual arrays at time t 1 to compare physical and virtual tomography images, thereby investigating the nature of the rotations. Three physical arrays were selected on both the low and high toroidal magnetic field sides and replaced by virtual arrays at time t 2 . The optimized angle was calculated by minimizing the differences between the tomography images and the reference image for each virtual array. A function based on the toroidal magnetic field profile was defined to determine the position of the virtual arrays. Results indicated differing rotation angles during the virtualization process due to the non-rigid rotation of the plasma column. The position angles for each island varied from the reference island during tomography reconstruction, both when adding and replacing virtual arrays. These differences were smaller under the assumptions of non-rigid rotation, enhancing the accuracy and validity of the tomography reconstruction. Tokamak tomography reconstruction plasma rotation singular value decomposition Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {\"props\":{\"pageProps\":{\"initialData\":{\"identity\":\"rs-5335201\",\"acceptedTermsAndConditions\":true,\"allowDirectSubmit\":true,\"archivedVersions\":[],\"articleType\":\"Research Article\",\"associatedPublications\":[],\"authors\":[{\"id\":373860531,\"identity\":\"dd62dc4e-6634-4e67-bfa7-1947d60e4973\",\"order_by\":0,\"name\":\"Mona AHMADI\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Dept. of Physics, Mashhad Branch, Islamic Azad University, Mashhad\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Mona\",\"middleName\":\"\",\"lastName\":\"AHMADI\",\"suffix\":\"\"},{\"id\":373860535,\"identity\":\"9162dc31-c3d9-4579-96bb-e79e047325fe\",\"order_by\":1,\"name\":\"Pejman KHORSHID\",\"email\":\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA6klEQVRIie3PIQvCQBTA8XcMZplY35jzM5wM1ORn2XGgZcEu6IFgXVXmhxAEMRgGAy1mESyuLK3YFAw+wSZObYb7w1148OPeAeh0fxgiXUwhCwFMsPhz7H9DpupHAmweP8g3i9nRaHO+rlruYr/NTnmvLVQpOUG6fk+c6kZG5R16y2PQrM+4FMrqcPCz96SGgWewMQoipmNxQygI6C9xMWFXIouomxEZClXJi4lDBMpE5o7fIJIIhR9esScdaRDxJsegYc/41htjxuMiggeZ0GIDN6TFML/13bAi0/RSQF4z6fwEdDqdTvfaHYtFThxl/q5CAAAAAElFTkSuQmCC\",\"orcid\":\"\",\"institution\":\"Dept. of Physics, Mashhad Branch, Islamic Azad University, Mashhad\",\"correspondingAuthor\":true,\"prefix\":\"\",\"firstName\":\"Pejman\",\"middleName\":\"\",\"lastName\":\"KHORSHID\",\"suffix\":\"\"},{\"id\":373860536,\"identity\":\"8544e4b1-f080-4339-9b32-fd6ee268e8b4\",\"order_by\":2,\"name\":\"AmirHossein SARI\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Dept. of Physics, Science and Research Branch, Islamic Azad University, Tehran\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"AmirHossein\",\"middleName\":\"\",\"lastName\":\"SARI\",\"suffix\":\"\"},{\"id\":373860537,\"identity\":\"5226d27c-1582-421a-b0d5-3bcf2315eabf\",\"order_by\":3,\"name\":\"Jalaledin IZADIAN\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Dept. of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Jalaledin\",\"middleName\":\"\",\"lastName\":\"IZADIAN\",\"suffix\":\"\"}],\"badges\":[],\"createdAt\":\"2024-10-26 02:53:18\",\"currentVersionCode\":1,\"declarations\":\"\",\"doi\":\"10.21203/rs.3.rs-5335201/v1\",\"doiUrl\":\"https://doi.org/10.21203/rs.3.rs-5335201/v1\",\"draftVersion\":[],\"editorialEvents\":[],\"editorialNote\":\"\",\"failedWorkflow\":false,\"files\":[{\"id\":71807628,\"identity\":\"4528574f-ce27-4a72-8cc1-91b86a030524\",\"added_by\":\"auto\",\"created_at\":\"2024-12-18 17:46:53\",\"extension\":\"pdf\",\"order_by\":1,\"title\":\"\",\"display\":\"\",\"copyAsset\":false,\"role\":\"manuscript-pdf\",\"size\":628571,\"visible\":true,\"origin\":\"\",\"legend\":\"\",\"description\":\"\",\"filename\":\"A2.pdf\",\"url\":\"https://assets-eu.researchsquare.com/files/rs-5335201/v1_covered_4ce45e4b-d23f-4a7b-9e01-66b3e3a0c0e6.pdf\"}],\"financialInterests\":\"No competing interests reported.\",\"formattedTitle\":\"An approach to create soft X-ray virtual arrays in tomography reconstruction considering non-rigid rotation of the plasma column in the tokamak\",\"fulltext\":[],\"fulltextSource\":\"\",\"fullText\":\"\",\"funders\":[],\"hasAdminPriorityOnWorkflow\":false,\"hasManuscriptDocX\":false,\"hasOptedInToPreprint\":true,\"hasPassedJournalQc\":\"\",\"hasAnyPriority\":false,\"hideJournal\":true,\"highlight\":\"\",\"institution\":\"\",\"isAcceptedByJournal\":false,\"isAuthorSuppliedPdf\":true,\"isDeskRejected\":\"\",\"isHiddenFromSearch\":false,\"isInQc\":false,\"isInWorkflow\":false,\"isPdf\":true,\"isPdfUpToDate\":true,\"isWithdrawnOrRetracted\":false,\"journal\":{\"display\":true,\"email\":\"info@researchsquare.com\",\"identity\":\"researchsquare\",\"isNatureJournal\":false,\"hasQc\":true,\"allowDirectSubmit\":true,\"externalIdentity\":\"\",\"sideBox\":\"\",\"snPcode\":\"\",\"submissionUrl\":\"/submission\",\"title\":\"Research Square\",\"twitterHandle\":\"researchsquare\",\"acdcEnabled\":true,\"dfaEnabled\":false,\"editorialSystem\":\"\",\"reportingPortfolio\":\"\",\"inReviewEnabled\":false,\"inReviewRevisionsEnabled\":true},\"keywords\":\"Tokamak, tomography reconstruction, plasma rotation, singular value decomposition\",\"lastPublishedDoi\":\"10.21203/rs.3.rs-5335201/v1\",\"lastPublishedDoiUrl\":\"https://doi.org/10.21203/rs.3.rs-5335201/v1\",\"license\":{\"name\":\"CC BY 4.0\",\"url\":\"https://creativecommons.org/licenses/by/4.0/\"},\"manuscriptAbstract\":\"\\u003cp\\u003eA method was proposed to create Soft X-ray virtual arrays in tomography to study the rigid versus non-rigid rotation of the plasma column in a tokamak. 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