{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T19:21:44Z","timestamp":1760296904628},"reference-count":10,"publisher":"AIP Publishing","issue":"3","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2003,3,1]]},"abstract":"<jats:p>A high dispersion, multichannel, visible spectrometer has been developed for the ISTTOK tokamak, aiming at measuring the evolution of both the edge ion temperature and plasma poloidal velocity, by analysis of a CIII spectral line. It is based on a double monochromator configuration with two high ruling densities (2700 l\/mm) and 1 m focal length concave diffraction gratings, a commercial double microchannel plate image intensifier, a fast (f\/#=1) relay lens built with two high diameter condensers in a back-to-back configuration, and a 2048 element photodiode charge coupled device optical multichannel analyzer. Laboratory tests have shown that a high dispersion has been achieved (\u22481.65 \u00c5\/mm), while keeping good temporal resolution (5 ms). Typical values measured for ion temperature (from Doppler broadening) were Ti\u224525\u2009eV while for poloidal velocity (from Doppler shift) v\u03b8\u22456\u2009km\/s.<\/jats:p>","DOI":"10.1063\/1.1537039","type":"journal-article","created":{"date-parts":[[2003,3,6]],"date-time":"2003-03-06T23:03:54Z","timestamp":1046991834000},"page":"2071-2074","update-policy":"http:\/\/dx.doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":7,"title":["High dispersion spectrometer for time resolved Doppler measurements of impurity lines emitted during ISTTOK tokamak discharges"],"prefix":"10.1063","volume":"74","author":[{"given":"R. B.","family":"Gomes","sequence":"first","affiliation":[{"name":"Associa\u00e7\u00e3o EURATOM\/IST, Centro de Fus\u00e3o Nuclear, Av. Rovisco Pais, 1049-001\u2009Lisboa, Portugal"}]},{"given":"C. A. F.","family":"Varandas","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o EURATOM\/IST, Centro de Fus\u00e3o Nuclear, Av. Rovisco Pais, 1049-001\u2009Lisboa, Portugal"}]},{"given":"J. A. C.","family":"Cabral","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o EURATOM\/IST, Centro de Fus\u00e3o Nuclear, Av. Rovisco Pais, 1049-001\u2009Lisboa, Portugal"}]},{"given":"E.","family":"Sokolova","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o EURATOM\/IST, Departamento de F\u0131\u0301sica, Universidade da Beira Interior, 6201-001\u2009Covilh\u00e3, Portugal"}]},{"given":"S. Reyes","family":"Cortes","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o EURATOM\/IST, Departamento de F\u0131\u0301sica, Universidade da Beira Interior, 6201-001\u2009Covilh\u00e3, Portugal"}]}],"member":"317","reference":[{"key":"2024021108041326800_r1","doi-asserted-by":"crossref","first-page":"1599","DOI":"10.1088\/0029-5515\/24\/12\/008","volume":"24","year":"1984","journal-title":"Nucl. Fusion"},{"key":"2024021108041326800_r2","doi-asserted-by":"crossref","first-page":"809","DOI":"10.1103\/RevModPhys.67.809","volume":"67","year":"1995","journal-title":"Rev. Mod. Phys."},{"key":"2024021108041326800_r3","doi-asserted-by":"crossref","first-page":"3015","DOI":"10.1103\/PhysRevLett.64.3015","volume":"64","year":"1990","journal-title":"Phys. Rev. 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