{"id":8421,"date":"2024-10-24T16:48:08","date_gmt":"2024-10-24T20:48:08","guid":{"rendered":"https:\/\/wpw.bnl.gov\/rgupta\/?page_id=8421"},"modified":"2024-10-26T18:03:08","modified_gmt":"2024-10-26T22:03:08","slug":"cctf","status":"publish","type":"page","link":"https:\/\/wpw.bnl.gov\/rgupta\/cctf\/","title":{"rendered":"Common Coil Test Facility (CCTF)"},"content":{"rendered":"\n<p>Common Coil Test Facility (CCTF) at BNL, based on a unique common coil dipole with a large opening, represents a new design and philosophy that  facilitates a new way of doing low-cost, fast turn-around magnet R&amp;D that was not possible before. It is currently being used by the High Energy Physics (HEP) and fusion community to test new cables and magnet concepts.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"288\" height=\"288\" src=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-8.png\" alt=\"\" class=\"wp-image-8459\" srcset=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-8.png 288w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-8-150x150.png 150w\" sizes=\"auto, (max-width: 288px) 100vw, 288px\" \/><\/figure>\n\n\n\n<p>The initial common coil vision was presented in an <a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2023\/03\/MDN-558-1.pdf\">internal note<\/a> and in a <a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2022\/11\/3p004.pdf\">paper in 1996<\/a>. It evolved over time till a common coil dipole <a href=\"https:\/\/wpw.bnl.gov\/rgupta\/the-dcc017-story\/\">DCC017<\/a> (see above with a large opening) was <a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2023\/02\/PID278887.pdf\">built and tested in 2006<\/a>. The magnet as a <a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2023\/02\/08248637.pdf\">facility was demonstrated<\/a> in 2016 when an HTS\/LTS hybrid magnet design was demonstrated. This led to the funding of several other proposals from a variety of sources.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/CCTF-at-BNL.pdf\"><strong>Slide deck for more information on the Common Coil Test Facility at BNL<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wpw.bnl.gov\/rgupta\/common-coil-design\/\"><strong>Common Coil Design Explained<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/wpw.bnl.gov\/rgupta\/the-dcc017-story\/\"><strong>The DCC017 Story<\/strong><\/a><\/li>\n<\/ul>\n\n\n\n<p>Common coil design is a modular design primarily consisting of simple racetrack coils. A new module can be added or replaced to carry out a proof-of-principle demonstration of a new idea or technology. DCC017 was designed such that a new module can be inserted without opening or disassembling the magnet. This is an alternative to building a whole new magnet which is order of more magnitude more expensive and takes several years to build and test. The picture below shows how one or a set of coils could be inserted to become part of the magnet without requiring disassembly and reassembly of DCC017.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"311\" height=\"269\" src=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/03\/image-32.png\" alt=\"\" class=\"wp-image-7955\" srcset=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/03\/image-32.png 311w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/03\/image-32-300x259.png 300w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/figure>\n\n\n\n<p>Providing a clear open space in the design required a large unsupported vertical coil module. There were many concerns for such a design, such as the coil module buckling, etc. The concept relies on the Lorentz forces pushing the main and insert coils towards the structure.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"269\" height=\"269\" src=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/03\/image-33.png\" alt=\"\" class=\"wp-image-7956\" srcset=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/03\/image-33.png 269w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/03\/image-33-150x150.png 150w\" sizes=\"auto, (max-width: 269px) 100vw, 269px\" \/><\/figure>\n\n\n\n<p>The common coil test facility vision is now operational and being used by a variety of users, many were not even imagined in the beginning. &nbsp;&nbsp;A large open space for in-field integration of the insert coils or samples without disassembling the magnet facilitates:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High risk, high reward innovative magnet R&amp;D program at a low cost, with insert coil becoming an inherent part of the magnet<\/li>\n\n\n\n<li>Systematic magnet R&amp;D program because of low-cost and rapid-turn-around of each test<\/li>\n\n\n\n<li>Unique test bed for high current cable in straight and bent configuration<\/li>\n\n\n\n<li>A vehicle for in-field testing of cable and insert coil at a variable temperature<\/li>\n\n\n\n<li>Testing of two test samples (cables or coils) in identical conditions in two apertures<\/li>\n<\/ul>\n\n\n\n<p><strong>Key Parameters:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"460\" src=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-11.png\" alt=\"\" class=\"wp-image-8463\" srcset=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-11.png 512w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-11-300x270.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"436\" height=\"398\" src=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-12.png\" alt=\"\" class=\"wp-image-8464\" srcset=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-12.png 436w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-12-300x274.png 300w\" sizes=\"auto, (max-width: 436px) 100vw, 436px\" \/><\/figure>\n\n\n\n<p>See also:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2022\/11\/wed-afor13-02-presentation.pdf\">New Approach and Test Facility for High Field Magnet R&amp;D<\/a> (<a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2023\/02\/New_Approach_and_Test_Facility_for_High-Field_Accelerator_Magnets_RampD.pdf\"><strong>Paper<\/strong><\/a>)<\/li>\n\n\n\n<li><a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2023\/02\/dcc017-for-insert-cable-coil-testing.pdf\">Unique Dipole for Low-cost, Rapid-turn-around Program<\/a><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"502\" height=\"1024\" src=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7-502x1024.png\" alt=\"\" class=\"wp-image-8452\" srcset=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7-502x1024.png 502w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7-147x300.png 147w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7-768x1567.png 768w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7-753x1536.png 753w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7-1004x2048.png 1004w, https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/image-7.png 1536w\" sizes=\"auto, (max-width: 502px) 100vw, 502px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/wpw.bnl.gov\/rgupta\/wp-content\/uploads\/sites\/9\/2024\/10\/CCTF-at-BNL.pdf\"><strong>Slide deck for more information on the Common Coil Test Facility at BNL<\/strong><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Common Coil Test Facility (CCTF) at BNL, based on a unique common coil dipole with a large opening, represents a new design and philosophy that facilitates a new way of doing low-cost, fast turn-around magnet R&amp;D that was not possible before. It is currently being used by the High Energy Physics (HEP) and fusion community&hellip; <a class=\"more-link\" href=\"https:\/\/wpw.bnl.gov\/rgupta\/cctf\/\">Continue reading <span class=\"screen-reader-text\">Common Coil Test Facility (CCTF)<\/span><\/a><\/p>\n","protected":false},"author":11,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-8421","page","type-page","status-publish","hentry","entry"],"_links":{"self":[{"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/pages\/8421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/comments?post=8421"}],"version-history":[{"count":17,"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/pages\/8421\/revisions"}],"predecessor-version":[{"id":8466,"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/pages\/8421\/revisions\/8466"}],"wp:attachment":[{"href":"https:\/\/wpw.bnl.gov\/rgupta\/wp-json\/wp\/v2\/media?parent=8421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}