<?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>2026-09-20T02:35:01Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/76521" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/76521</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">Timothy A Antaya.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Block, Robert E. (Robert Edward)</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">2013-01-23T19:48:18Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2013-01-23T19:48:18Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">2011</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2011</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1721.1/76521</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">823867037</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2011.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Cataloged from PDF version of thesis.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (p. 177-179).</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">An electron beam transport system was designed for use in the Bremsstrahlung Beam Generation System of the Integrated Stand-off Inspection System (ISIS). The purpose of this electron transport system was to provide for electron beam diagnostics and energy selection while also positioning the electron beam on a target down range. The transport system and its component magnets were designed using the TRANSPORT, Poisson, and Opera 3D codes, as well as several custom Python scripts. By implementing several methods in each part of the design process, it was possible to design the electron transport system to the exact specifications of the ISIS electron beam. This careful and iterative design process was documented in such a way to facilitate future beam transport design both at the MIT Plasma Science and Fusion center and elsewhere. This design process resulted in a beam transport system composed of three irondominated resistive-coil electromagnets. The system was designed for beam momentum up to 60 MeV/c and emittance of order 20 mm-mrad. Through magnetic field simulation and beam transport in 3D, a ID matrix code which tracks individual particles was developed. This code agreed with more detailed beam calculations and should allow for rapid beam simulation during system testing and operation.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Robert E. Block.</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">179 p.</dim:field>
   <dim:field mdschema="dc" element="language" qualifier="iso" lang="en_US">eng</dim:field>
   <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">Electron beam dynamics for the ISIS bremsstrahlung beam generation system</dim:field>
   <dim:field mdschema="dc" element="title" qualifier="alternative" lang="en_US">Electron beam dynamics for the Integrated Stand-off Inspection System bremsstrahlung beam generation system</dim:field>
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	&lt;Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843&lt;/Type>
	&lt;Language>eng&lt;/Language>
   	&lt;Title>Electron beam dynamics for the ISIS bremsstrahlung beam generation system&lt;/Title>
   	&lt;Subtitle>Electron beam dynamics for the Integrated Stand-off Inspection System bremsstrahlung beam generation system&lt;/Subtitle>
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   	&lt;PublicationDate>2011&lt;/PublicationDate>
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        	&lt;DisplayName>Block, Robert E. (Robert Edward)&lt;/DisplayName>
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            &lt;DisplayName>Massachusetts Institute of Technology&lt;/DisplayName>
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    &lt;License>http://dspace.mit.edu/handle/1721.1/7582&lt;/License>
    &lt;Keyword>Nuclear Science and Engineering.&lt;/Keyword>
   	&lt;Abstract>An electron beam transport system was designed for use in the Bremsstrahlung Beam Generation System of the Integrated Stand-off Inspection System (ISIS). The purpose of this electron transport system was to provide for electron beam diagnostics and energy selection while also positioning the electron beam on a target down range. The transport system and its component magnets were designed using the TRANSPORT, Poisson, and Opera 3D codes, as well as several custom Python scripts. By implementing several methods in each part of the design process, it was possible to design the electron transport system to the exact specifications of the ISIS electron beam. This careful and iterative design process was documented in such a way to facilitate future beam transport design both at the MIT Plasma Science and Fusion center and elsewhere. This design process resulted in a beam transport system composed of three irondominated resistive-coil electromagnets. The system was designed for beam momentum up to 60 MeV/c and emittance of order 20 mm-mrad. Through magnetic field simulation and beam transport in 3D, a ID matrix code which tracks individual particles was developed. This code agreed with more detailed beam calculations and should allow for rapid beam simulation during system testing and operation.&lt;/Abstract>
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