Presentation on theme: "LR Summary and LQ Plan Jesse Schmalzle w/ contributions from: J. Muratore (BNL) P. Ferracin (LBNL) October 18, 2007."— Presentation transcript:
LR Summary and LQ Plan Jesse Schmalzle w/ contributions from: J. Muratore (BNL) P. Ferracin (LBNL) October 18, 2007
J. Schmalzle2 October 18, 2007 LR Fabrication Coil winding: Impregnated coil:
J. Schmalzle3 October 18, 2007 LR Fabrication Coil reaction:
J. Schmalzle4 October 18, 2007 LR Assembly Coil assembly: Coils assembled into LBNL fabricated support fixture with LBNL assistance.
J. Schmalzle5 October 18, 2007 LR Assembly Structure lifting / uprighting:
J. Schmalzle6 October 18, 2007 LR Test Results J. Muratore I Q (max) = 91% I SS
J. Schmalzle7 October 18, 2007 LR Test Results J. Muratore
J. Schmalzle8 October 18, 2007 LR Test Results J. Muratore
J. Schmalzle9 October 18, 2007 LR Test Results J. Muratore
J. Schmalzle10 October 18, 2007 LR Test Results J. Muratore
J. Schmalzle11 October 18, 2007 LR Test Results (Flux Jumps) J. Muratore
J. Schmalzle12 October 18, 2007 LR Test Results Shell shrinks more than yoke Friction limits the shell contractions Central part locked Strain at 4.5 K consistent with 0.2 friction model results During excitation e.m. forces induced slippage Strain gauge measurement and analysis – axial strain P. Ferracin
J. Schmalzle13 October 18, 2007 LR Test Results Average of the central gauge measurements 3 cool-downs in total During dummy coil test At 77 K - Axial stress of 200 MPa - Azim. stress of 220 MPa Similar stresses after first LRS01 cool-down During excitation, sudden z slippage of the shell Drop of axial stress Effect on azimuthal stress Strain gauge measurement and analysis - axial & azimuthal stress P. Ferracin
J. Schmalzle14 October 18, 2007 LRS02 Plan Support structure shipped to LBNL for modification. Segmented shell: - Less axial strain - No slippage during excitation - Better control of shell ID - More uniform azimuthal stress Modified structure and assembly tooling to be returned to BNL. Reassemble using the original coils. Attempt to repair spot heaters before reassembly. Cold test.
J. Schmalzle15 October 18, 2007 LRS02 Status P. Ferracin New gauges replaced all old gauges 5 stations (left-right and T-Z) Lead end + center of each segment. Shell cut into four segments. Pin holes included to align segments. Segments misaligned after cut. Bladder operation will conform shell ID to yoke OD.
J. Schmalzle16 October 18, 2007 LRS02 Status P. Ferracin Status Structure disassembled Shell cut in four segments New instrumentation attached (20 gauges) Next steps Measurements of the gauge offsets Yoke insertion and slight preload of the shell Dummy coil pack insertion Ship structure to BNL
J. Schmalzle17 October 18, 2007 LQ Plan Fabricate two sets of reaction/impregnation fixture to FNAL drawings: Adapt tooling for use at BNL: - Use existing assembly table with new standoffs to support fixture. - Use existing LR beams to lift and flip fixture. - Fabricate coil lead solder fixtures to FNAL drawings. - Add heaters for impregnation in vacuum tank. - Use existing vacuum tank and top plate with modified hanging brackets for vertical impregnation. Design and procure instrumentation circuits.
J. Schmalzle18 October 18, 2007 LQ Plan React and impregnate practice coil: Coil to be wound and cured at FNAL and shipped to BNL. Perform electrical checks and visual inspection, then cut up coil for further inspection. React and impregnate LQ coils. Coils to be wound and cured at FNAL and shipped to BNL. Assemble coils into shell and bladder structure. Structure and assembly tooling to be fabricated at LBNL. Ship coils to FNAL in react / impregnation fixture for (later) assembly into collar support structure.