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Recent Remote Handling Experience at NuMI/ANU

Recent Remote Handling Experience at NuMI/ANU. NBI 2012 P. Hurh (FNAL). Nov. 10, 2012. Overview. Experiences over past 2 years (since last NBI) MiniBooNE NuMI Target Support NOvA Target Hall Re-configuration C-0 Remote Handling Facility Future Concerns Support of future experiments

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Recent Remote Handling Experience at NuMI/ANU

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  1. Recent Remote Handling Experience at NuMI/ANU NBI 2012 P. Hurh (FNAL) Nov. 10, 2012

  2. Overview • Experiences over past 2 years (since last NBI) • MiniBooNE • NuMI Target Support • NOvA Target Hall Re-configuration • C-0 Remote Handling Facility • Future Concerns • Support of future experiments • Long Term Radioactive Storage and Disposal • Dose rate prediction tools

  3. Over past 2 years • MiniBooNE • Only maintenance and inspection activities • No Horn/target replacement needed for ~8 years • NuMI/MINOS • No Horn replacement needed • Many Target problems (J. Hylen’s earlier talk) • From the remote handling perspective: • Standard replacement procedures (5 replacements in 2 years was not standard!) • Specialized target autopsy tool successful

  4. Residual Radiation • Horns and Targets supported on the bottom of large shielding modules • Replaced in a simple work cell (no manipulators) where almost all activities take place above the module through holes using specialized tools • Radioactive components are transported in end-loaded casks using a system designed by Vladimir Sidorov Measured dose rates for NuMIHorn 1 water line repair (250 kW proton beam)

  5. NuMI Work Cell

  6. NuMI Target Hall

  7. NuMI Horn Transport Cask

  8. V. Sidorov’s Target Autopsy Tool • Similar to a tubing cutter:

  9. Target Cutting Tool Lined up to Target in NuMI Work Cell

  10. NuMI Target NT-05 Cut-Apart

  11. NOvA Target Hall Re-configuration • Change to Medium Energy Optics for NOvA requires moving the second horn location about 9 meters downstream • Target Chase area has been irradiated from many years of NuMI operation • Careful preparation and planning predicted total dose to worker of 2,495 mrem • Job was just completed in Sept-Oct 2012 with a measured dose of 1,538 mrem • Lead engineer: Salman Tariq

  12. NOvA Target Hall Re-configuration

  13. Clear out new location for Horn 2

  14. Lower shielding blocks handled remotely

  15. Storage for shield blocks

  16. Horn 2 carriage installed T-block kinematic mounts Temporary shielding to limit dose from upstream

  17. Horn 2 Lowered into carriage

  18. T-Block Installation

  19. Horn 2 installed (utilities yet to be connected)

  20. C-0 Remote Handling Facility • Needed to enable (while running beam): • Repairs • Autopsies • Volume reduction • Uses C-0 Detector AssyBldg(from canceled B-Tev project) • 10 m deep pit • Triple redundant sump system • Connected to Tevatron tunnel (future expansion opportunity?)

  21. C-0 Remote Handling Facility • Repair Cell • Approximately 6m x 7m (internal dimensions) • Internal overhead crane (10 ton) and jib crane (2 ton) • Re-furbished Lead Glass Window (PLUTO project- nuclear ramjet) • 1 new manipulator, 1 surplus manipulator • Large sliding steel doors • Storage Bays • 3 Large storage bays • End load design allows for shielded transfer • Lead Engineer: Vladimir Sidorov Lead Glass windows came from 1950’s era Project Pluto!

  22. C-0 Repair Cell

  23. C-0 RHF Storage Bays and Cask

  24. C-0 Repair Cell

  25. C-0 RHF Manipulators

  26. C-0 RHF Remote Handling TzarSidorov

  27. Future Concerns: Proposed Facilities • Near & Mid-Term • NOvA (50-400 R/hr) • Micro-BooNE (20-100 R/hr) • Mu2e (300,000 R/hr!!) • G-2 (12-60 R/hr) • ORKA? • NuSTORM? • Long Term (Project X) • Four simultaneous running target facilities at 1+ MW each!

  28. Project X Reference Design

  29. Project X Staging Layout

  30. Future Target Facilities • Impact: • Higher activity levels • Multiple locations on site • Increased frequency of handling • Requires: • More sophisticated equipment • More time for operations • More and better-trained staff • Better management of entire life cycle (LT storage and disposal)

  31. Long Term Storage and Shipment Facility • In order to handle the possibly hundreds of highly activated components from the rich Project X program, Fermilab is considering building a facility to: • Safely and securely hold radioactive items to decay • Volume reduce large radioactive items • Package decayed items for off-site disposal • Preliminary design features expandability to adapt to future needs

  32. LTSF – Conceptual Design Control Room Earth berm Expandable end wall Large Shielded Pit Work Cell Large Item Bays

  33. LTSF - Expanded

  34. Dose Rate Prediction Tools for Multiple Sources • What tools exist to predict dose rate at a point in space from multiple sources? • What can be developed? I v neutrinos

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