{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T03:19:02Z","timestamp":1771471142864,"version":"3.50.1"},"reference-count":47,"publisher":"IOP Publishing","issue":"7","license":[{"start":{"date-parts":[[2016,6,15]],"date-time":"2016-06-15T00:00:00Z","timestamp":1465948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/page\/copyright"},{"start":{"date-parts":[[2016,6,15]],"date-time":"2016-06-15T00:00:00Z","timestamp":1465948800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"name":"EUROfusion Consortium","award":["WP14-FRF-IST\/Rodrigues"],"award-info":[{"award-number":["WP14-FRF-IST\/Rodrigues"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","award":["IF\/00530\/2013"],"award-info":[{"award-number":["IF\/00530\/2013"]}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Nucl. Fusion"],"published-print":{"date-parts":[[2016,7,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The linear stability of Alfv\u00e9n eigenmodes in the presence of fusion-born alpha particles is thoroughly assessed for two variants of an ITER baseline scenario, which differ significantly in their core and pedestal temperatures. A systematic approach based on CASTOR-K (Borba and Kerner 1999 <jats:italic>J. Comput. Phys<\/jats:italic>. <jats:bold>153<\/jats:bold> 101; Nabais <jats:italic>et al<\/jats:italic> 2015 <jats:italic>Plasma Sci. Technol<\/jats:italic>. <jats:bold>17<\/jats:bold> 89) is used that considers all possible eigenmodes for a given magnetic equilibrium and determines their growth rates due to alpha-particle drive and Landau damping on fuel ions, helium ashes and electrons. It is found that the fastest growing instabilities in the aforementioned ITER scenario are core-localized, low-shear toroidal Alfv\u00e9n eigenmodes. The largest growth-rates occur in the scenario variant with higher core temperatures, which has the highest alpha-particle density and density gradient, for eigenmodes with toroidal mode numbers <jats:inline-formula>\n                     <jats:tex-math\/>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mstyle displaystyle=\"false\">\n                           <mml:mi>n<\/mml:mi>\n                           <mml:mo>\u2248<\/mml:mo>\n                           <mml:mn>30<\/mml:mn>\n                        <\/mml:mstyle>\n                     <\/mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"nfaa26ddieqn001.gif\" xlink:type=\"simple\"\/>\n                  <\/jats:inline-formula>. Although these eigenmodes suffer significant radiative damping, which is also evaluated, their growth rates remain larger than those of the most unstable eigenmodes found in the variant of the ITER baseline scenario with lower core temperatures, which have <jats:inline-formula>\n                     <jats:tex-math\/>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mstyle displaystyle=\"false\">\n                           <mml:mi>n<\/mml:mi>\n                           <mml:mo>\u2248<\/mml:mo>\n                           <mml:mn>15<\/mml:mn>\n                        <\/mml:mstyle>\n                     <\/mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"nfaa26ddieqn002.gif\" xlink:type=\"simple\"\/>\n                  <\/jats:inline-formula> and are not affected by radiative damping.<\/jats:p>","DOI":"10.1088\/0029-5515\/56\/7\/076007","type":"journal-article","created":{"date-parts":[[2016,6,15]],"date-time":"2016-06-15T15:57:12Z","timestamp":1466006232000},"page":"076007","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":17,"title":["Comprehensive evaluation of the linear stability of Alfv\u00e9n eigenmodes driven by alpha particles in an ITER baseline scenario"],"prefix":"10.1088","volume":"56","author":[{"given":"A.C.A.","family":"Figueiredo","sequence":"first","affiliation":[]},{"given":"P.","family":"Rodrigues","sequence":"additional","affiliation":[]},{"given":"D.","family":"Borba","sequence":"additional","affiliation":[]},{"given":"R.","family":"Coelho","sequence":"additional","affiliation":[]},{"given":"L.","family":"Fazendeiro","sequence":"additional","affiliation":[]},{"given":"J.","family":"Ferreira","sequence":"additional","affiliation":[]},{"given":"N.F.","family":"Loureiro","sequence":"additional","affiliation":[]},{"given":"F.","family":"Nabais","sequence":"additional","affiliation":[]},{"given":"S.D.","family":"Pinches","sequence":"additional","affiliation":[]},{"given":"A.R.","family":"Polevoi","sequence":"additional","affiliation":[]},{"given":"S.E.","family":"Sharapov","sequence":"additional","affiliation":[]}],"member":"266","published-online":{"date-parts":[[2016,6,15]]},"reference":[{"key":"nfaa26ddbib001","doi-asserted-by":"publisher","first-page":"1949","DOI":"10.1063\/1.859057","volume":"1","author":"Fu","year":"1989","journal-title":"Phys. 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