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<h2 class="hd hd-2 unit-title">3.3.7. Video Lecture</h2>
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<h4 class="hd hd-5">Transcripts</h4>
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<h2 class="hd hd-2 unit-title">3.3.7. Notes & Additional Material</h2>
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<p><strong>Use the following links to download this lecture's notes:</strong></p>
<p><a href="/assets/courseware/v1/557f0c823b51114270aed2dfeaf17d0e/asset-v1:MITx+22.011x+3T2018+type@asset+block/Unit_3.3.7_required_pdf_lecture_notes_v2_updated.pdf" target="[object Object]">Lecture 3.3.7. [Innovation to Accelerate Path to Fusion] - Required Lecture Notes</a></p>
<p><a href="/assets/courseware/v1/38292b89750c9f1a1986b9fc38d19eaa/asset-v1:MITx+22.011x+3T2018+type@asset+block/Unit_3.3.7_optional_reading_TEC_Report_15Feb2018_copy.pdf" target="[object Object]">Lecture 3.3.7. [Innovation to Accelerate Path to Fusion] - Optional Reading</a></p>
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<h2 class="hd hd-2 unit-title">3.3.7. Required Assessment</h2>
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Assessment 1
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<fieldset aria-describedby="status_315756b5494a4081bd76b4068b4dc285_2_1 description_315756b5494a4081bd76b4068b4dc285_1_1">
<legend id="315756b5494a4081bd76b4068b4dc285_2_1-legend" class="response-fieldset-legend field-group-hd">What is the primary advantage to developing tokamak field coils made out of high temperature superconductor ?</legend>
<p class="question-description" id="description_315756b5494a4081bd76b4068b4dc285_1_1">Select only one option.</p>
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<input type="radio" name="input_315756b5494a4081bd76b4068b4dc285_2_1" id="input_315756b5494a4081bd76b4068b4dc285_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="315756b5494a4081bd76b4068b4dc285_2_1-choice_0-label" for="input_315756b5494a4081bd76b4068b4dc285_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_315756b5494a4081bd76b4068b4dc285_2_1 description_315756b5494a4081bd76b4068b4dc285_1_1"> The high temperature means you could reduce the cryogenic (cooling needs)
</label>
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<input type="radio" name="input_315756b5494a4081bd76b4068b4dc285_2_1" id="input_315756b5494a4081bd76b4068b4dc285_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="315756b5494a4081bd76b4068b4dc285_2_1-choice_1-label" for="input_315756b5494a4081bd76b4068b4dc285_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_315756b5494a4081bd76b4068b4dc285_2_1 description_315756b5494a4081bd76b4068b4dc285_1_1"> HTS is far easier to work with than LTS or copper
</label>
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<input type="radio" name="input_315756b5494a4081bd76b4068b4dc285_2_1" id="input_315756b5494a4081bd76b4068b4dc285_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="315756b5494a4081bd76b4068b4dc285_2_1-choice_2-label" for="input_315756b5494a4081bd76b4068b4dc285_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_315756b5494a4081bd76b4068b4dc285_2_1 description_315756b5494a4081bd76b4068b4dc285_1_1"> HTS can be used to build higher field electromagnets than LTS, allowing for smaller tokamaks to be built with high values of magnetic field, \(B\)
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<legend id="2dea7899934a4d168c04bb40ec52c62f_2_1-legend" class="response-fieldset-legend field-group-hd">What is the MIT ARC reactor?</legend>
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<input type="radio" name="input_2dea7899934a4d168c04bb40ec52c62f_2_1" id="input_2dea7899934a4d168c04bb40ec52c62f_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="2dea7899934a4d168c04bb40ec52c62f_2_1-choice_0-label" for="input_2dea7899934a4d168c04bb40ec52c62f_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_2dea7899934a4d168c04bb40ec52c62f_2_1 description_2dea7899934a4d168c04bb40ec52c62f_1_1"> ARC is the name of a net-energy tokamak that is being built by MIT
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<input type="radio" name="input_2dea7899934a4d168c04bb40ec52c62f_2_1" id="input_2dea7899934a4d168c04bb40ec52c62f_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="2dea7899934a4d168c04bb40ec52c62f_2_1-choice_1-label" for="input_2dea7899934a4d168c04bb40ec52c62f_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_2dea7899934a4d168c04bb40ec52c62f_2_1 description_2dea7899934a4d168c04bb40ec52c62f_1_1"> ARC is a tokamak currently operating in Cambridge, MA
</label>
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<input type="radio" name="input_2dea7899934a4d168c04bb40ec52c62f_2_1" id="input_2dea7899934a4d168c04bb40ec52c62f_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="2dea7899934a4d168c04bb40ec52c62f_2_1-choice_2-label" for="input_2dea7899934a4d168c04bb40ec52c62f_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_2dea7899934a4d168c04bb40ec52c62f_2_1 description_2dea7899934a4d168c04bb40ec52c62f_1_1"> ARC is a conceptual design for a tokamak that is roughly the size of JET, uses HTS toroidal field coils to run with \(B &#8776; 9 T\), and would generate 500MW of fusion power in the D-T plasma.
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Assessment 3
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<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="inputtype_d46bebc375ae43d5b054c601172aa5d3_2_1" class="choicegroup capa_inputtype">
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<legend id="d46bebc375ae43d5b054c601172aa5d3_2_1-legend" class="response-fieldset-legend field-group-hd">Select all that apply to the SPARC tokamak.</legend>
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<input id="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_0" type="checkbox" value="choice_0" name="input_d46bebc375ae43d5b054c601172aa5d3_2_1[]" class="field-input input-checkbox"/><label id="d46bebc375ae43d5b054c601172aa5d3_2_1-choice_0-label" for="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_d46bebc375ae43d5b054c601172aa5d3_2_1"> SPARC would operate with D-T and could achieve \(Q\) &gt; 2
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<input id="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_1" type="checkbox" value="choice_1" name="input_d46bebc375ae43d5b054c601172aa5d3_2_1[]" class="field-input input-checkbox"/><label id="d46bebc375ae43d5b054c601172aa5d3_2_1-choice_1-label" for="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_d46bebc375ae43d5b054c601172aa5d3_2_1"> SPARC would operate with D-T and could produce 50-100 MW of fusion power
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<input id="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_2" type="checkbox" value="choice_2" name="input_d46bebc375ae43d5b054c601172aa5d3_2_1[]" class="field-input input-checkbox"/><label id="d46bebc375ae43d5b054c601172aa5d3_2_1-choice_2-label" for="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_d46bebc375ae43d5b054c601172aa5d3_2_1"> MIT is partnering with private companies to build the SPARC tokamak
</label>
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<input id="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_3" type="checkbox" value="choice_3" name="input_d46bebc375ae43d5b054c601172aa5d3_2_1[]" class="field-input input-checkbox"/><label id="d46bebc375ae43d5b054c601172aa5d3_2_1-choice_3-label" for="input_d46bebc375ae43d5b054c601172aa5d3_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_d46bebc375ae43d5b054c601172aa5d3_2_1"> SPARC would use HTS superconducting coils to achieve \(B\) &#8776; 12 \(T\) in a tokamak as large as the DIII-D tokamak. (DIII-D is currently operating in USA in San Diego, CA, with copper coils and B &lt; 2 T)
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<h2 class="hd hd-2 unit-title">3.3.7. Optional Lecture on Fusion</h2>
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<p>Hey! Below is an optional lecture on fusion. Watch it and realize how much you've learned!</p>
<p>Enjoy and don't forget to post your question in the discussion forum!</p>
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<h3 class="hd hd-2">MIT Professor Zach Hartwig - MIT's Pathway to Fusion Energy</h3>
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