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RAL Integration Issues

RAL Integration Issues. Elwyn Baynham, Paul Drumm, Yury Ivanyushenkov, Tony Jones RAL. MICE Collaboration Meeting, Osaka, August 1-3, 2004. Scope. Layout Beam height Support structure Beam line shielding layout. MICE layout. Height of MICE beam. Dia 650. Aperture in ISIS wall.

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RAL Integration Issues

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  1. RAL Integration Issues Elwyn Baynham, Paul Drumm, Yury Ivanyushenkov, Tony Jones RAL MICE Collaboration Meeting, Osaka, August 1-3, 2004

  2. Scope • Layout • Beam height • Support structure • Beam line shielding layout

  3. MICE layout

  4. Height of MICE beam Dia 650 Aperture in ISIS wall 1524* 1684.2 160* Support structure Concrete floor

  5. MICE support structure : Concept • Requirements/specification: • - to move MICE modules out the beam (to the side direction) for various MICE stages • ( Qs: Do we need to move ALL modules?; Is the side direction preferable?) • Accuracy/tolerances: • - along the beam +/- 1 mm • - across the beam +/- 1 mm • (Q: What position accuracy is required for module-to-module connection ?) • Adjustment: • - adjustment possibility is required. • Locking mechanism: • - required. • Loads: • - max load is 3 (?) tonnes. • Force transfer function: • - gravity force to the floor; • - module-to-module axial force to the floor ?

  6. MICE support structure : Options • Commercial rail system: • - usually high accuracy (+/- 0.1 mm ) • ( Q: Do we need it?) • - proven design; • - delivery times – days ( if off-the-shelf product); • BUT high cost. • Simple slides arrangement: • - accuracy; • - cost; • - prototype.

  7. MICE support structure: Commercial system HEPCO SL2 stainless steel based slide system Hepco Slide Systems Ltd, Devon England EX16 6TG Item Price/each, £ No./MICE Total No. Total price, with VAT, module k£ k£ Stock SL2 carriage (type AU SS L 76) 460 4 28 12.880 15.134 in assembled and adjusted condition Spacer slide (rail) SS NL 76 Length of 4.5 m in 3-m and 1.5-m sections 2475 2 14 34.650 40.714 Grand total, k£ 55.848 Delivery time: 3-5 days

  8. MICE support structure: Commercial system (2)

  9. MICE support structure: Alternative solution Simple slides arrangement Platform Sliding carriages Low-friction material blocks Rails Concrete floor

  10. MICE support structure vs. MICE stages Problem: some of MICE modules will be located in various positions along the beam for different stages of the experiment. Possible solution: sliding rails (rails on rails). MICE module Beam Platform 20 80 HEPCO rail system 160* Bottom rails 40 Steel plate 20 Concrete floor

  11. Beam line and shielding layout • Beam line shielding: • shields MICE against full beam loss in the ISIS beam pipe (-> 2m of steel is required); • is removable for access to PSI solenoid; • ideally allows to work on the beam line components in the MICE hall even when the ISIS beam is on -> concept of temporary shielding.

  12. Beam line and shielding layout

  13. Beam line shielding Concrete shielding PSI solenoid 17-tonne magnet ISIS wall Existing steel shielding Steel shielding Crane zone limits

  14. PSI solenoid support structure and shielding Concrete ISIS wall Steel shielding

  15. Temporary shielding arrangement Temporary steel shielding These two magnets are in Off-beam position PSI solenoid is in Test position

  16. Next steps • MICE general layout: • - start implementing MICE sub-systems (RF power system, hydrogen system etc.) and magnetic shielding (requires more modelling). • Support structure: • - agree on requirement/specs; • - agree on concept; • - get cost estimations for various options. • Beam line and shielding layout: • - finish detailed design; • - get OK from ISIS Radiation Safety Officer

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