<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-19T10:42:13Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/41302" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/41302</identifier><datestamp>2022-01-13T07:54:37Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131023</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">James H. Irby and Ian H. Hutchinson.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Smith, Kelly (Kelly Robert)</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Massachusetts Institute of Technology. Dept. of Nuclear Science and Engineering.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Nuclear Science and Engineering</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="accessioned">2008-04-23T14:43:26Z</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">2007</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2007</dim:field>
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   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">214283155</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2007.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (leaf 91).</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">The poloidal field and corresponding toroidal current profiles have been among the most difficult and most important measurements in tokamak fusion research. One method demonstrated to obtain information about these quantities is polarimetry, in which Faraday rotation caused by the plasma is measured. Design has begun for a 20-channel, Far-infrared polarimeter-interferometer system on Alcator C-Mod. In preparation for this experiment, a poloidally-viewing prototype polarimeter-interferometer has been constructed, installed, and tested on Alcator C-Mod. This thesis describes the design of this prototype and reports the results obtained, with emphasis on those applicable to the future polarimeter-interferometer. Specifically, experimental techniques and alignment procedures, sensitivity to vibration, and conditions affecting reflection from the inner wall are explored.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Kelly Smith.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">S.M.</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">91 leaves</dim:field>
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   <dim:field mdschema="dc" element="publisher" lang="en_US">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights" lang="en_US">M.I.T. theses are protected by 
copyright. They may be viewed from this source for any purpose, but 
reproduction or distribution in any format is prohibited without written 
permission. See provided URL for inquiries about permission.</dim:field>
   <dim:field mdschema="dc" element="rights" qualifier="uri" lang="en_US">http://dspace.mit.edu/handle/1721.1/7582</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Nuclear Science and Engineering.</dim:field>
   <dim:field mdschema="dc" element="title" lang="en_US">Results from prototype polarimeter/interferometer on Alcator C-Mod</dim:field>
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   	&lt;Title>Results from prototype polarimeter/interferometer on Alcator C-Mod&lt;/Title>
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    &lt;Keyword>Nuclear Science and Engineering.&lt;/Keyword>
   	&lt;Abstract>The poloidal field and corresponding toroidal current profiles have been among the most difficult and most important measurements in tokamak fusion research. One method demonstrated to obtain information about these quantities is polarimetry, in which Faraday rotation caused by the plasma is measured. Design has begun for a 20-channel, Far-infrared polarimeter-interferometer system on Alcator C-Mod. In preparation for this experiment, a poloidally-viewing prototype polarimeter-interferometer has been constructed, installed, and tested on Alcator C-Mod. This thesis describes the design of this prototype and reports the results obtained, with emphasis on those applicable to the future polarimeter-interferometer. Specifically, experimental techniques and alignment procedures, sensitivity to vibration, and conditions affecting reflection from the inner wall are explored.&lt;/Abstract>
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