{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T11:12:28Z","timestamp":1753873948905,"version":"3.41.2"},"reference-count":4,"publisher":"AIP Publishing","issue":"10","funder":[{"DOI":"10.13039\/501100000808","name":"Fusion for Energy","doi-asserted-by":"publisher","award":["F4E-FPA-375-SG04"],"award-info":[{"award-number":["F4E-FPA-375-SG04"]}],"id":[{"id":"10.13039\/501100000808","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UID\/FIS\/50010\/2013"],"award-info":[{"award-number":["UID\/FIS\/50010\/2013"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2018,10,1]]},"abstract":"<jats:p>The ITER plasma position reflectometry diagnostic aims to provide measurements of the edge plasma to correct or supplement the magnetics for plasma position control. It consists of five reflectometers, two of which have components installed inside the vessel. One of these systems probes the plasma from the high-field side using a bistatic array of small pyramidal horns located in the gap between two blankets. Electromagnetic simulations have shown that the blankets shape the radiation pattern and need to be considered as part of the antenna. Full-wave plasma simulations have confirmed these results and have also shown that the first-wall geometry may induce measurement errors above the required margin. To further address these issues, we manufactured a prototype of the high-field side antenna, which includes a mock-up of the blanket modules. Here, we present the results of the prototype tests, with and without the blankets, using a metallic mirror as a target. The signals reflected from the mirror are used to derive the mirror distance and assess the precision of the measurements under different arrangements. The sensitivity to the blankets\u2019 installation tolerances is also assessed by changing the antennas\u2019 position with respect to the blankets\u2019 surfaces and cut-outs.<\/jats:p>","DOI":"10.1063\/1.5036743","type":"journal-article","created":{"date-parts":[[2018,7,11]],"date-time":"2018-07-11T15:35:26Z","timestamp":1531323326000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":2,"title":["Testing of the ITER plasma position reflectometry high-field side in-vessel antenna assembly prototype"],"prefix":"10.1063","volume":"89","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6865-8066","authenticated-orcid":false,"given":"P.","family":"Varela","sequence":"first","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa , 1049-001 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0003-7263","authenticated-orcid":false,"given":"A.","family":"Silva","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa , 1049-001 Lisboa, Portugal"}]},{"given":"J. H.","family":"Belo","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa , 1049-001 Lisboa, Portugal"}]}],"member":"317","published-online":{"date-parts":[[2018,7,11]]},"reference":[{"key":"2023062517581389200_c1","doi-asserted-by":"publisher","first-page":"11E713","DOI":"10.1063\/1.4961291","volume":"87","year":"2016","journal-title":"Rev. Sci. Instrum."},{"key":"2023062517581389200_c2","doi-asserted-by":"publisher","first-page":"11E727","DOI":"10.1063\/1.4962356","volume":"87","year":"2016","journal-title":"Rev. Sci. Instrum."},{"key":"2023062517581389200_c3","doi-asserted-by":"publisher","first-page":"S693","DOI":"10.1088\/0029-5515\/46\/9\/s05","volume":"46","year":"2006","journal-title":"Nucl. Fusion"},{"year":"2007","key":"2023062517581389200_c4","first-page":"1"}],"container-title":["Review of Scientific Instruments"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.aip.org\/aip\/rsi\/article-pdf\/doi\/10.1063\/1.5036743\/16728929\/10h102_1_online.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.aip.org\/aip\/rsi\/article-pdf\/doi\/10.1063\/1.5036743\/16728929\/10h102_1_online.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,6,25]],"date-time":"2023-06-25T17:58:18Z","timestamp":1687715898000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.aip.org\/rsi\/article\/89\/10\/10H102\/153768\/Testing-of-the-ITER-plasma-position-reflectometry"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,7,11]]},"references-count":4,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2018,10,1]]}},"URL":"https:\/\/doi.org\/10.1063\/1.5036743","relation":{},"ISSN":["0034-6748","1089-7623"],"issn-type":[{"type":"print","value":"0034-6748"},{"type":"electronic","value":"1089-7623"}],"subject":[],"published-other":{"date-parts":[[2018,10]]},"published":{"date-parts":[[2018,7,11]]},"article-number":"10H102"}}