1 / 25

Cryogenic Experts Meeting (19 ~ 20.09.2007)

Cryogenic Experts Meeting (19 ~ 20.09.2007). Magnet designs for Super-FRS and CR. MT/FAIR – Cryogenics and Magnets H. Leibrock. Design parameters and layout of the Super-FRS. Design Parameters. 2 Stage Multi-Branch Super Conducting Large-Acceptance. Superferric dipole of Super-FRS.

vern
Download Presentation

Cryogenic Experts Meeting (19 ~ 20.09.2007)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cryogenic Experts Meeting (19 ~ 20.09.2007) Magnet designs for Super-FRS and CR MT/FAIR – Cryogenics and Magnets H. Leibrock

  2. Design parameters and layout of the Super-FRS Design Parameters • 2 Stage • Multi-Branch • Super Conducting • Large-Acceptance

  3. Superferric dipole of Super-FRS PF2 Existing superferric dipole for A1900 Fragment Separator, NSCL, MSU 1.6 T, DC, large aperture iron-dominated, warm iron

  4. Requirements for the design of a dipole • The dipoles are conceived as superferric laminated magnets with warm iron yoke, warm pole, and warm beam pipe. • The magnets will run in DC mode. • The dipole should be a sector magnet (trapezoid) with sector shape coils. • Coils should be self protecting (Cu:SC ratio: 10:1 or 9:1; SC: NbTi). • Bath cooled. • All dipoles are in separated cryostats. • No liquid Nitrogen is intended for shielding. • Standard (no HTSC) current leads will be used (less than 250 ampere).

  5. Main parameters for CR/Super-FRS dipole

  6. FAIR collaboration in China • The FAIR China group: • The R&D work of superconducting magnets for CR and SuperFRS • The subjects of making the superconducting dipole prototype for • Super-FRS are divided into: • Design and fabrication of the yoke: IMP Lanzhou • Concept design of SC coil, cryostat: IEE Beijing • Engineering design, fabrication and testing of SC coil, including cryostat: ASIPP Hefei • Final assembly, testing and measurements: IMP and ASIPP in Lanzhou • goal: dipole prototype finished in spring 2008.

  7. Opera models the 2D quarter profile of CR dipole the 3D model of Super-FRS dipole

  8. Punching die assembly and punching sheets The assembly for the punching die The Punching die assembly The first punching sheet The Punching die installation

  9. The punching sheets Two punching sheets: 2200mm*1450mm

  10. End block fabricating steps Laminated sheets Stairs stacking and glued After cutting

  11. End block stacking and cutting tests Stacking stair shape after glued Fixed on vertical turning machine Cutting by the machine Laminated end block after cutting

  12. Half yoke stacking with end block and laminated sheets in the middle part Inserting plates Laminated sheets End blocks Welding plates End-plates

  13. Half yoke stamping and welding with steel plates on 300 tons oil pressure machine

  14. Coil and cryostat lower: Oxford NbTi conductor upper: the cross section of coil and cryostat

  15. Main parameters of conductor and coil

  16. IPP superconducting test coil fabrication

  17. IPP superconducting test coil fabrication

  18. Structure of thermal shield and cryostat Cryostat consist of two main sub-assemblies; 1) A magnet cryostat housing the superconducting coil 2) Satellite cryostat with cryogenic reservoirs and connections to outside world self protecting dipoles (Tmax < 120 K, Vmax < 200 V)

  19. Superferric Multiplets for the Super-FRS • Warm bore diameter of 38 cm • Iron-dominated, cold iron • Quadrupole triplet + separated sextupoles • Octupole correction coils are embedded Superferric Triplet (BigRIBS @ RIKEN)

  20. 3d Opera model of the quadrupole The magnet with the main coils and the octupole coils The main parameters of the magnet are: Yoke diameter: 1400 mm Pole tip radius: 250 mm Gradient quality: ±8∙10-4 Main coil: Coil cross section: 55×50mm2 Maximum current density: 127 A/mm2 Pole tip field: 2.5 T (10 T/m) max. field @ coil: 4.5 T

  21. 3d Opera model of sextupole The main parameters of the magnet are: Yoke diameter: 800 mm Pole tip radius: 235 mm Gradient quality: ±8∙10-4 Coil cross section: 20×20 mm2 Maximum current density: 132 A/mm2 Maximum field in the coil: 1.6 T Maximum field at pole: 0.8 T

  22. Conceptual design study of a Superferric multiplet for FAIR Contract with Toshiba Corporation: Conceptual design Toshiba designed quadrupole triplets for RIKEN. Super-FRS requirements are similar

  23. Conceptual design study of asuperferric multiplet for FAIR

  24. Cold mass support figurations

  25. Status • The manufacture of the punching die of the dipole was finished. After punching sheets accuracy checking with laser tracker, the punching die has been fine-adjusted. Now IMP finished punching of all iron sheets. • IPP are fabricating the testing coil, some moulds and tools can be used for the prototype coils. IPP want to get more experiences and knowledge from the tests to define the detail design for the cryostat. • Main dimension and assembly of yoke and cryostat were confirmed. • Conceptual design of a multiplet exists • A contract for a long quadrupole prototype is prepared

More Related