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MERIT Hg System Final Design Review

MERIT Hg System Final Design Review. Hg Target System Design Interfaces V.B. Graves P.T. Spampinato T.A. Gabriel MERIT Collaboration Meeting MIT Plasma Science & Fusion Center Oct 5, 2005. Primary Hg System Interfaces. Facility Optical diagnostics Magnet. Facility Interfaces.

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MERIT Hg System Final Design Review

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  1. MERIT Hg SystemFinal Design Review Hg Target System Design Interfaces V.B. Graves P.T. Spampinato T.A. Gabriel MERIT Collaboration Meeting MIT Plasma Science & Fusion Center Oct 5, 2005

  2. Primary Hg System Interfaces • Facility • Optical diagnostics • Magnet MERIT Collab. Mtg Oct 17-29, 2005

  3. Facility Interfaces • Require 30kW power supply • 460V/3PH U.S. • 380V/3PH CERN • Delivery system will have on-board 110V, 24V power supplies • Anchor baseplate to floor? MERIT Collab. Mtg Oct 17-29, 2005

  4. Primary Containment As Fabricated • No reflector, no optics or optics mounting shelf • Interface drawings will be provided to BNL MERIT Collab. Mtg Oct 17-29, 2005

  5. Optical Viewing Windows • 2mm Quartz backed by 4mm Lexan • Can Lexan be used alone? • Face seals • Mechanical fasteners • Assemblies provided on both sides of primary containment as part of delivery system fabrication MERIT Collab. Mtg Oct 17-29, 2005

  6. Optical Reflector Windows • BNL to provide mirror and adjustment mechanism • Mechanically attaches to viewport cover plate • Interface drawing to be provided by ORNL MERIT Collab. Mtg Oct 17-29, 2005

  7. Optical Components • BNL to provide splitters, prisms, lenses, bracket, mounting hardware & adjustment mechanisms MERIT Collab. Mtg Oct 17-29, 2005

  8. Fiber Bundle Bulkhead Fittings • Eight connector holes provided based on BNL-supplied info • BNL provides connectors MERIT Collab. Mtg Oct 17-29, 2005

  9. Z=0 Section Cut MERIT Collab. Mtg Oct 17-29, 2005

  10. Magnet Bore Bore'd Out • Magnet designed with G-10 bore tube to insulate inner wall during cooling cycle • G-10 tube did not allow enough room for optics • Removal of bore tube requires a substitute insulator covering the upstream 20cm of the bore • Current approach uses a Watlow kapton heater foil • Thickness = 0.2mm (0.007inch) MERIT Collab. Mtg Oct 17-29, 2005

  11. Solenoid Interface • Clearance • Magnet ID = 162mm • Secondary OD = 157mm (157.5mm with foil) • Centering secondary containment within bore will require some sort of annular wedges, perhaps mechanical fastening to magnet end plate MERIT Collab. Mtg Oct 17-29, 2005

  12. Hg System / Magnet Alignment • Baseplate has jackscrews to precisely adjust cart axial position • Flex metal hoses may allow nozzle to move relative to magnet • Add means of attaching secondary containment to magnet end plate MERIT Collab. Mtg Oct 17-29, 2005

  13. Integrated Systems Testing • Prefer to perform prototypic installation sequence where magnet will be operated • Target transporter, common baseplate, tilt & elevate • If physical constraints at MIT prevent prototypic operations, we should conduct installation-only tests at another MIT location MERIT Collab. Mtg Oct 17-29, 2005

  14. Magnetic Force Analysis • P. Titus performed Ansys analysis of attractive forces between magnet and single iron cylinder • Force nearly 13000lb • Further analysis showed force decreases significantly with separation distance > 1m MERIT Collab. Mtg Oct 17-29, 2005

  15. Possible Solutions • Restrain Hg system and magnet • Increase separation distance • Design concept initiated • Use non-magnetic hydraulic cylinders, at higher cost • Chose this option after reviewing syringe vendor quotes MERIT Collab. Mtg Oct 17-29, 2005

  16. Final Interface Issues • Final dimensions of secondary containment not known until syringe vendor completes design • Design review required to be held within 30 days of award • Vertical dimensions the most critical and may slightly change some baseplate dimensions MERIT Collab. Mtg Oct 17-29, 2005

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