BFW Card Physics Requirements Status BFW Card design

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BFW Card - Physics Requirements - Status - BFW Card design - Carbon wire

BFW Card - Physics Requirements - Status - BFW Card design - Carbon wire mounting and tooling - BFW card alignment procedure Clive Field, Reggie Rogers, Venkat Srinivasan 01/23/2008 Undulator Week: BFW Card Status Update 1 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu

BFW Card: Physics Overview (PRD 1. 4 -004 -r 1) Parameter Value Status Wires

BFW Card: Physics Overview (PRD 1. 4 -004 -r 1) Parameter Value Status Wires per BFW device 2 2 Wire perpendicularity 10 mrad ~1 mrad (early microscope test on prototype) Wire diameter 0. 03 -0. 04 mm 0. 034 Carbon wires Vertical position of Y-wire from Girder Axis (GA) 0. 20 mm 0. 186 mm [Slide 5] Horizontal position of X-wire from GA 0. 40 mm 0. 386 mm [Slide 5] Vacuum hardware clearance radius at target >2 mm. [Slide 5] Two independent methods to measure beam intensity at wire location: (1) beam induced wire current (2) Scattered particles NA Only scattered particle detection in plan Y-wire vertical insertion reproducibility 30 µm Dependent on overall BFW Assembly Alignment X-wire horizontal insertion reproducibility 80 µm Dependent on overall BFW Assembly Alignment Roll, pitch, yaw tolerance 10 mrad Dependent on overall BFW Assembly Alignment 01/23/2008 Undulator Week: BFW Card Status Update 2 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu

BFW Card: Status Task Status/Dates (from 12/20/2007 PDR) Status/Dates (1/23/08) Send BFW Card prototype

BFW Card: Status Task Status/Dates (from 12/20/2007 PDR) Status/Dates (1/23/08) Send BFW Card prototype to ANL SLAC: Sent 12/19/07 Tested at ANL. Modifications made. Delivery of BFW assemblies from ANL 1 st article to ship from ANL in early 2008 1 st article ships from ANL on 1/24/08 Fabrication of Bench Assembly for SLAC Alignment of BFW SLAC: Ordered 12/19/07 SLAC: Ready 1/25/08 BFW electrical connections SLAC: Copper tabs ready by 12/21/07. Feedthroughs; shielding/grounding start: 02/11/08 SLAC: Copper tabs tested on prototype. Feedthrough connection; shielding/grounding start: 02/11/08 Detector – PMT assembly SLAC: Start Jan 2008 (D. Mc. Cormick): Do not need till later [outside vacuum] SLAC: Start Feb 2008 (D. Mc. Cormick) Fabrication of 40 BFW cards (Macor) SLAC: Start 01/07/08. Order Macor 12/20/07 SLAC: 1 st article ready for tests: 1/23/08. BFW Card Coating – Kovar (40 pieces) SLAC: Start 01/22/08 SLAC: Start 01/28/08. Delayed due to tooling, Macor delivery, modifications. BFW Card Wiring – Carbon wire, 40 pieces SLAC: Start 01/28/08 SLAC: Start 01/30/08 BFW Card Installation and alignment SLAC: Start 02/11/08 BFW Assembly Pneumatics Boxes Provided by ANL. Need pressure regulator. 90 psi airline SLAC: Instrumentation. Start 02/04/08 BFW Controls: Cabling; electronics; software for signal readout [D. Mc. Cormick’s detector]; 24 V solenoid controller SLAC: Controls. Overall project complete date April 2008 [Cleaning, wiring, card QC: One day for each card] April 2008 01/23/2008 Undulator Week: BFW Card Status Update 3 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu

BFW Wire Schematic (1. 4 -004 -r 1) BFW Assembly Overview (J. Bailey) SLAC

BFW Wire Schematic (1. 4 -004 -r 1) BFW Assembly Overview (J. Bailey) SLAC Deliverable: 1. BFW Card 2. Detection mechanism 3. Cabling 4. 90 psi airline; 24 V solenoid controller Assembly model courtesy: J. Bailey, ANL 01/23/2008 Undulator Week: BFW Card Status Update 4 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu

BFW Card Prototype Drawing X-wire end point: 39. 614 mm Beam center: 40 mm

BFW Card Prototype Drawing X-wire end point: 39. 614 mm Beam center: 40 mm Gap between beam and X-wire: 0. 386 mm Prototype material: Al-6061 Actual material: Macor Thickness: 3/16” (4. 8 mm) Coating: Kovar [tooling in progress] Y-wire end point: 37. 014 mm Beam center: 37. 2 mm Gap between beam and Y-wire: 0. 186 mm 01/23/2008 Undulator Week: BFW Card Status Update 5 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu

BFW Card Wiring: Tooling Micrometer stage BFW Card Rods for hanging BFW wire with

BFW Card Wiring: Tooling Micrometer stage BFW Card Rods for hanging BFW wire with weights Card holder ‘Carbon wire & weight’ Copper Tabs • Wires soldered to copper tabs • Wires from copper tabs connect to BFW feedthrough • Feedthrough to be grounded and RF shielded 01/23/2008 Undulator Week: BFW Card Status Update 6 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu

BFW Card: Alignment Plan Slide Fiducials Vertical and Horizontal Adjustment Screws Flange Locating Pins

BFW Card: Alignment Plan Slide Fiducials Vertical and Horizontal Adjustment Screws Flange Locating Pins 1. 2. 3. 4. Bench Fiducials Adjustment Bench located on CMM Pneumatic supply Wire Card Fiducials are edges of card and additional hole at bottom of card Place BFW assembly on bench assembly using flange locating pins Bench assembly locates on CMM Locate wires to local fiducials (card edges and hole) – optically. Locate local fiducials to outside tooling balls – using CMM. Card’s alignment pin holes are slotted in horizontal direction. Card’s horizontal position is verified/altered using shim/thickness gages. Use shim/thickness gages to measure gap between card holder and card Assembly model courtesy: J. Bailey, ANL 01/23/2008 Undulator Week: BFW Card Status Update 7 Clive Field, Reggie Rogers, Venkat Srinivasan [email protected] stanford. edu