Calculating reaction rates and fusion power from neutron yields of fusion reactions that power future fusion reactors

Calculating reaction rates and fusion power from neutron yields of fusion reactions that power future fusion reactors | 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 Article Calculating reaction rates and fusion power from neutron yields of fusion reactions that power future fusion reactors Ahmed Youssef This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7904417/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 By calculating the neutron yields of fusion reactions D(d,n)3He and T(d,n)4He, the reaction rates and fusion power were calculated in the range of fusion plasma temperatures inside the reactor core. Although it is essential to reactor performance, it is extremely difficult to measure the neutron yield of each fusion reaction independently and instantly. Therefore, accurate theoretical calculations of these neutron yields are required, and the Monte Carlo technique is the ideal method for achieving such calculations. In this work, the 3-D Monte Carlo code MCUNED was used to calculate the neutron yield of each fusion reaction within the operating temperature range of the reactor core. The optimum ratio of deuterium (D) to tritium (T) fuel mixture, fusion reaction rates, and fusion power ratio of fusion reactions were studied. The optimal operating temperature to achieve the best reactor performance (highest fusion reaction rates and highest fusion energy) was investigated. Physical sciences/Energy science and technology Physical sciences/Physics Nuclear fusion reactors Fusion neutron spectra Fusion reaction rates Fusion power ratio Ideal fuel mixture Monte Carlo simulations 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-7904417","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":542401879,"identity":"6ce6c2fb-d30c-413b-80e3-84f8cb5befd8","order_by":0,"name":"Ahmed Youssef","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA0klEQVRIiWNgGAWjYFAC5gYGxgYGGX4GBjZitTA2NgC18Eg2kKzF4ACxWvjbG9sf/Nxhx2N8I/nZgw8VDPL8Ygfwa5E4c7CxsfdMMo/ZjTRzwxlnGAxnzk4gYM2NxMYG3jZmoJYEM2neNoYEg9sEtMjff9jY+Letnsd4Rvo34rQY3GBsbOZtO8xjIJFDpC2GZxIbZ8ueOc4jceZNmeSMMxKE/SJ3/PCBj293VMvxt6dvk/hQYSPPL01ACwIIgFVKEKscBPgPkKJ6FIyCUTAKRhIAAOx7Ra1bmOgVAAAAAElFTkSuQmCC","orcid":"","institution":"Osaka University","correspondingAuthor":true,"prefix":"","firstName":"Ahmed","middleName":"","lastName":"Youssef","suffix":""}],"badges":[],"createdAt":"2025-10-20 09:53:13","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7904417/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7904417/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":95680333,"identity":"ccc43194-bb6a-4eb3-9a9d-0bab23a2e694","added_by":"auto","created_at":"2025-11-11 20:04:47","extension":"rtf","order_by":0,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":4407912,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptrevised.rtf","url":"https://assets-eu.researchsquare.com/files/rs-7904417/v1/21996ab9e0f37ada76305c00.rtf"},{"id":95680332,"identity":"dc40ed6c-9044-4891-b3dc-ca44d292846f","added_by":"auto","created_at":"2025-11-11 20:04:46","extension":"json","order_by":1,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":2973,"visible":true,"origin":"","legend":"","description":"","filename":"5735f14829304786994b29f750fafd1f.json","url":"https://assets-eu.researchsquare.com/files/rs-7904417/v1/6410faf463d7cd39fe55613c.json"},{"id":103214712,"identity":"9ab542fd-b035-4f75-9e21-a00c5e02c23c","added_by":"auto","created_at":"2026-02-23 09:12:53","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":511956,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptrevised.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7904417/v1_covered_96529aa4-7c32-473d-bf46-604258699668.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Calculating reaction rates and fusion power from neutron yields of fusion reactions that power future fusion reactors","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":"[email protected]","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":"Nuclear fusion reactors, Fusion neutron spectra, Fusion reaction rates, Fusion power ratio, Ideal fuel mixture, Monte Carlo simulations","lastPublishedDoi":"10.21203/rs.3.rs-7904417/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7904417/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"By calculating the neutron yields of fusion reactions D(d,n)3He and T(d,n)4He, the reaction rates and fusion power were calculated in the range of fusion plasma temperatures inside the reactor core. 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