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Neutral Beam Absorber for LHC (TAN) ASSEMBLY

US LHC ACCELERATOR PROJECT. brookhaven - fermilab - berkeley. Neutral Beam Absorber for LHC (TAN) ASSEMBLY. B. Elliott. IR Absorber 02 Nov 2001, LBNL. Bill Elliott TAN/TAS ASSEMBLY. 1. TAN Nomenclature. The TAN consists of two major assemblies; the absorber box

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Neutral Beam Absorber for LHC (TAN) ASSEMBLY

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  1. US LHC ACCELERATOR PROJECT brookhaven - fermilab - berkeley Neutral Beam Absorber for LHC (TAN) ASSEMBLY B. Elliott IR Absorber 02 Nov 2001, LBNL Bill Elliott TAN/TAS ASSEMBLY 1

  2. TAN Nomenclature The TAN consists of two major assemblies; the absorber box and the steel shielding. Upper shielding Junction box Through bolt Absorber box Copper bars Side shielding Marble Upper base plate Beam tube vacuum chamber Lower base plate Beam tube support bracket The steel shielding is a pinned structure with four through bolts for transport. Jack Bill Elliott TAN/TAS ASSEMBLY 2

  3. TAN Nomenclature Copper bars Beam tube vacuum chamber Marble Upper shielding Beam tube support bracket Junction box Absorber box Side shielding Through bolt Lower base plate Upper base plate Bill Elliott TAN/TAS ASSEMBLY 3

  4. TAN VACUUM DESIGN -3D OVERVIEW THE VACUUM TUBE CONTAINS TWO COUNTER-ROTATING BEAMS. THE BEAMS TRANSITION FROM ONE BEAM IN EACH TUBE TO TWO BEAM IN THE SAME TUBE. THE TWO COUNTER-ROTATING BEAMS INTERSECT 140 METERS AWAY THERE IS A MIRROR IMAGE SYSTEM ON THE OPPOSITE SIDE OF THE INTERSECTION POINT

  5. TAN VACUUM DESIGN -MATERIALS STAINLESS FLANGE CURRENT DESIGN OFHC INSERT COPPEROFHC COPPER OFHC COPPEROFHC

  6. TAN VACUUM DESIGN -OUTER WALL PAIR OF PANTS (POP) • OUTER WALL (INSEAM): • WIRE EDM (GROSS FEATURES) • BALL MILL (FINAL SHAPE) • WALL IS 14.3MM THICK IN Z-AXIS • RADIAL THICKNESS VARIES DETECTOR LOCATION OUTER WALL (INSEAM) Z-AXIS

  7. PAIR OF PANTS (POP) TAN VACUUM DESIGN -INNER WALL • INNER WALL: • WIRE EDM FROM SOLID CYLINDER BEAM DETECTOR LOCATION ALIGNMENT PINS BEAM INNER WALL Z-AXIS

  8. Vacuum Chamber Assembly Bill Elliott TAN/TAS ASSEMBLY 5

  9. Absorber Box Assembly Fiducials Upper plate Upper clamshell Vacuum chamber Lower clamshell Bill Elliott TAN/TAS ASSEMBLY 9

  10. TAN Jack Installation • Survey location • Install jack plates • Install jacks • (Note jack clips) • Adjust jacks Bill Elliott TAN/TAS ASSEMBLY 10

  11. TAN Lower and Side Shielding • Install base plates • and side shielding Bill Elliott TAN/TAS ASSEMBLY 11

  12. TAN Lower Shielding and Absorber • Install heat shields • Install absorber • Use shims to • centralize absorber • between side shields Bill Elliott TAN/TAS ASSEMBLY 12

  13. TAN Assembled • Install upper shielding • Assemble marble • Install beam tube support • Install copper bars • Install junction box • Fiducialization • Install transport covers • To protect beam tubes • before moving assembly Bill Elliott TAN/TAS ASSEMBLY 13

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