IEC Fusion Reactor Mark 3 Fluorinert Cooled Grid, Version 3
IEC Fusion Reactor Mark 3 Fluorinert Cooled Grid, Version 3 |
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Overview: Modifications to the Version 2 and Version 1 cooled grids. Replaces boron nitride/quartz insulator with Macor/Alumina insulator for improved vacuum performance
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Grid Cooling Assembly (8/21/2013) |
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Grid Cooling Assembly (8/21/2013) boron nitride and quartz insulator compared to alumina insulator. The boron nitride components were causing vacuum problems due to their porosity and water retention. |
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Grid Cooling Assembly (5/1/2016) Macor insulator bushing showing pump out duct |
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Grid Cooling Assembly (5/1/2016) Macor insulator bushing |
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Grid Cooling Assembly (5/1/2016) Macor insulator bushing dimensions |
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Grid Cooling Assembly (5/1/2016) Macor insulator bushing and alumina tube |
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Grid Cooling Assembly (5/1/2016) Molybdenum end cap designs for alumina tube to prevent arcing at the lip of the ceramic by reducing electric field gradient |
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Grid Cooling Assembly (5/1/2016) Molybdenum end cap designs for alumina tube to prevent arcing at the lip of the ceramic by reducing electric field gradient |
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Grid Cooling Assembly (5/1/2016) Version of end cap with rounded overhang |
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Grid Cooling Assembly (5/1/2016) Version of end cap with rounded overhang |
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Grid Cooling Assembly (5/1/2016) Version of end cap with re-entrant cup |
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Grid Cooling Assembly (5/1/2016) Version of end cap with re-entrant cup |
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Grid Cooling Assembly (5/1/2016) Dimensions of end cap with re-entrant cup |
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Grid Cooling Assembly (5/1/2016) Macor bushing installed in quartz tube, pump out duct visible |
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Grid Cooling Assembly (5/1/2016) Re-entrant end cap installed on grid |
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Grid Cooling Assembly (5/1/2016) Version 3 grid insulator |
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Grid Cooling Assembly (5/1/2016) Operation of version 3 grid, in a plasma the grid arcs at ~25kV where the alumina tube joins the Macor bushing. In a vacuum it has been tested up to 40kV with no signs of arcing. The grid will need to be modified with an additional insulator to prevent direct plasma bombardment of the dielectric interface. |
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Grid Cooling Assembly (5/1/2016)
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Grid Cooling Assembly (5/1/2016)
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Grid Cooling Assembly (5/1/2016)
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Grid Cooling Assembly (5/1/2016)
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| Useful links:http://www.fusor.net/ Open Source Fusion Research Consortium. | |
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