This material is based upon work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC Michigan State University designs and establishes FRIB as a DOE Office of Science National User Facility in support of the mission of the Office of Nuclear Physics. Terrell Gee FRIB Mechanical Engineer Fragment Separator Design: Component Alignment and Mounting

 Alignment Hot cell penetrations Hot cell and component fiducials  Component mounting  Prototype efforts Mounting Shielding  Summary Outline T.Gee, Alignment and Mounting, Slide 2

FRIB Target Facility T.Gee, Alignment and Mounting, Slide 3 Vertical Preseparator Hot-Cell Preseparator Reconfigured A-1900 Fragment Separator

 Alignment and the hot cell The hot cell is a portion of the entire FRIB alignment network The alignment network connects the hot cell to the target facility and the target facility to the components located in the cell  Component alignment in hot cell Mechanical systems that need to be mapped in the alignment network: »Vacuum vessels »Magnet assemblies »Beam line components (e.g., post target shield) Alignment Scope Component alignment in hot cell T.Gee, Alignment and Mounting, Slide 4

 Alignment requirements Experimental Systems Alignment Requirements Document (T40300-SP ) specifies the placement requirements; for Magnet Systems: »Transverse position (both magnet ends): +/- 0.3 mm »Rotation about optical axis: +/- 0.5 mrad »Longitudinal position: +/- 3.0 mm  Derived requirements Integration meetings with other groups further establish alignment criteria: »x ≥ 6 fiducial monuments transferred from each section of the alignment network »x ≥ 4 fiducial monuments attached to components located within the alignment network  Alignment perspective images 3D-CAD tools were used to mimic the viewpoint of a laser tracker system The images were used to create and finalize the penetration designs T.Gee, Alignment and Mounting, Slide 5 Final Penetration Designs N N Alignment Penetrations Established Alignment Network and Fiducial Viewing

South Wall Alignment Penetration [1] Image represents a tracker system positioned in the south wall Tracker Beam Projection Penetration Boundaries  Hot cell south wall Prospective: Looking north toward the hot cell north wall T.Gee, Alignment and Mounting, Slide 6

North Wall Alignment Penetration [1]  Hot cell north wall Prospective: Looking south toward the transfer area of the hot cell Image represents a tracker system positioned in the north wall Tracker beam projection T.Gee, Alignment and Mounting, Slide 7

 Limited cell access Once shielding is removed activated components restrict cell access – servicing completed via remote manipulation  Remote viewing of the fiducial network Viewing achieved using a laser tracker system »Identifying optimal fiducial location »Ensuring proper fiducial orientation »Maintaining line-of-sight capabilities for all monuments  In cell fiducial placement The constraints for mounting fiducials on components also apply to positioning fiducials around the hot cell Alignment Beam Line Component Viewing Critical for Activated Components T.Gee, Alignment and Mounting Fiducials for Vacuum Components In Cell Fiducials, Slide 8

Component Mounting Design Slide Assembly Overview T.Gee, Alignment and Mounting, Slide 9 Support Rail Magnet and Support System Slide Assembly Vacuum Vessel and Beamline Components

 Mounted rail supports Rail supports carry load through the vacuum vessel to floor below The rail supports are embedded in the concrete below the vessel  Kinematic mounting Allows magnet assembly to be removed, serviced, and repositioned back into the alignment network Coarse guide will locate components up to canoe sphere engagement during the yoke reinstallation process Beamline Component Mounting and Support [1] Compatible with High-radiation Environment T.Gee, Alignment and Mounting Support Rail Beam Direction Kinematic Layout, Slide 10

Beamline Component Mounting and Support [2] Compatible with High-radiation Environment T.Gee, Alignment and Mounting Replaceable Shim Support Rail Slide Assembly  Initial component installation Slide assembly »Provides axial adjustments Shimming system »Allows for vertical adjustments during the installation phase Once aligned the slotted washers and slide assembly will be fastened into position  Post installation adjustments Replaceable shims provide adjustment capabilities »Laser tracking will determine alignment correction and provide profile data for new shims »New shims with machined x-y offsets and thickness allow for six degrees adjustment, Slide 11

Mounting Systems Under Evaluation T.Gee, Alignment and Mounting, Slide 12  Option A: Slide Gib  Option B: Slide Plate Slide Assembly Note: The exploded assembly models and the smaller images shown reflect earlier designs and are for conceptual reference only; the larger images reflect current design L- Gibs

Evaluation of Mounting Options Supported by Prototyping  Simulate the alignment environment and validate adjustment procedures – reduces risk Alignment precision Accuracy and repeatability Component durability  Designs are used in the Beam Delivery System magnets of ASD T.Gee, Alignment and Mounting Mounting Assembly Prototype Details, Slide 13 Mounting Systems Weighted Component Mounting Assembly Prototype Mounting Fixture

 Test manufacturability and determine machining capabilities of the vendor needed  Evaluate best-case manufacturing procedures / techniques for creating the production assemblies  Test if tolerance can be met in manufacturing to achieve maximum gap size as defined by the Radiation Transport Group  Test expected flatness and parallel tolerances for the welded parts of the re-entrant shielding Local Fragment Separator Shielding Re-entrant Shielding Prototyping Supports Design T.Gee, Alignment and Mounting Prototype Components:, Slide 14 ES Design Models Shielding Models Shielding with Stand

 FRIB mounting and alignment components are designed based on the imposed/derived requirements and system interfaces  Design validation through prototyping Summary T.Gee, Alignment and Mounting, Slide 15

Back Up Slides T.Gee, Alignment and Mounting, Slide 16

 In vessel mounting approach The kinematic mounting approach used throughout the hot cell: »Magnet systems, target and beam dump systems, in-vessel shielding  Magnet support design integrated Cradle design serves as interface between magnet system and mounting adjustment system by providing the connection point for the kinematic alignment component Cradle includes several features that allow for remote handling operations Beamline Component Mounting Advanced T.Gee, Alignment and Mounting Magnet Support Cradle Design Evolution, Slide 17

Magnet Cradle Design Advanced Trunion Pin Moved Canoe Spheres and Shim Puck to 12” Each Side of Center Added Guide Rod Trunion Plate Minor Trim To Ribs (Red Surface) Modified End Plates Trunion Plate Slider T.Gee, Alignment and Mounting, Slide 18

Component Support in Vertical Preseparator Section Designs Understood T.Gee, Alignment and Mounting, Slide 19 Magnets and Support Systems of the Vertical Preseparator  Support structure Magnet range in weight from approximately 25 tons to 130 tons Existing portions of the NSCL magnet support systems were used as the baseline for the vertical preseparator in FRIB NSCL S800 Dipole Support NSCL S800 Triplet Support

T.Gee, Alignment and Mounting, Slide 20 Horizontal Mounting and Support Stands Angled Mounting and Support Stands  Triplet support designs straight forward and advanced - updates as needed to follow detailed design of magnets. Vertical Section of the Preseparator Triplet Support

T.Gee, Alignment and Mounting, Slide 21 Vertical Section of the Preseparator Example 50º Dipole Support  Rigid platform for orthogonal adjusters to accurately alignment the dipole magnets  1 st magnet needs sideway movement to make space for preceding triplet initial installation maintenance  Similar system mounts have been realized at NSCL NSCL/FRIB CycStopper Details Approx. Weight: 200 Tons Approx. Size: 2.0 M x Ø4.0 M Lower Support North wall: Hot cell