1. ProtoDUNE SP TPC Summary Bo Yu 12-June-2016

2. APA Design APA design has remained relatively stable since CD1-R 2.3m wide, 6m tall active area, 2560 readout channels, 4 wire plane (3 with readout), U & V wire angle 35.7 ⁰, 10 PD modules Main effort has been the development of an automated winding machine Key changes:  Bolted frame to improve dimensional stability  Cold electronics in modular (128ch) enclosures with integrated cables to improve accessibility, ease of testing and integration  APA mechanical attachments (side to side, top support) are electrically isolated to maintain a controlled grounding path through CE. CPA lifting bars June 12, 2016LBNC meeting2

3. Outer resistive tubes replaced with FC profiles HV cup mount HV bus cable CPA lifting bars Field cage hinge HV bus cable Connection to the resistive sheet Once installed, the CPA appears to be part of the field cage looking from outside. Current CPA Design with HV Bus The CPA has evolved through several iterations since CD1-R, and has stabilized. Key design features  Solid G10 frame structure with thin G10 panels laminated with resistive Kapton foils  All raised G10 frame surfaces are covered with resistive field shaping strips  A HV bus provides a low resistance path to all cathode panels and resistive dividers of the field cage modules  Outer edges of the CPA use the same FC metal profiles  CPA width = ½ APA width, CPA module height=1/3 APA H. Vc+1587V Vc June 12, 2016LBNC meeting3

4. Current Field Cage Design Use open metal profiles (roll formed or extruded) supported by fiber glass support beams 2.3m wide by 3.6m modules on top and bottom, 1.5m high by 3.6m modules on the end caps. Reconfigurable to 2.5m drift length inside the cryostat Each module is electrically isolated from its neighbor modules (metal profiles terminated with polyethylene caps) to minimize energy transfer in the event of a discharge Ground planes are integrated onto the top/bottom field cage modules @20cm clearance to minimize high E field in the regions with mechanical and cryogenic services. Top and bottom field cage modules hinged on CPAs moving into the cryostat to minimize risk of APA wire damage during installation A small scale (6.7cm clearance to ground) has been tested @ CERN in clean LAr up to 100kV End wall x4u high Top/bottom x3u wide June 12, 2016LBNC meeting4

5. Ash River Trial Assembly Install final quadrant of TCP using a minimum of these proto-type parts:  1 APA frame (not strung)  2 CPA columns  Top and Bottom Field Cage (both sides  End Wall Field Cage Structure is designed to support 2 quadrants of APA,CPA and FC Help develop final sequencing and test assembly procedures, access equipment and any required lifting fixtures Be prepared for installation at CERN, including trained supervisors & techs June 12, 2016LBNC meeting5

6. HV Test Setup in 35ton This setup will be able to test the following features at full scale for HV validation: CPA lifting fixture Ground plane Ground plane overhang Field cage support structure CPA edges Field cage profiles Polyethylene profile caps End wall FC box beams HV cup Beam plug and its support Laser beam window June 12, 2016LBNC meeting6

7. Backup slides June 12, 2016LBNC meeting

8. Schedule June 12, 2016LBNC meeting8

9. APA Coordination and Management Mitch Soderberg - Convener, Syracuse University Robert Paulos - Manager, UW-Madison PSL Bo Yu – APA Advisor, Brookhaven National Laboratory Michelle Stancari, Fermilab A. Szelc, University of Manchester Quality & Testing U.T. Arlington Jonathan Asaadi Engineers Lee Greenler Dan Wenman Ken Kriesel Andy Laundrie Bill Mason Kevin Koehler CAD Jordon Bricco Glen Gregerson Technical Support Darrell Hamilton Greg Vlasak Mary Severson Students Jake Nesbit Barb Birrittella Lexi Oxborough Tyler Doering Tyler Trickle Matt Szekely U.W. PSL United Kingdom University of Cambridge Mark Thomson University of Bristol Univ. of Durham Imperial College Lancaster University Univ. of Liverpool University College London University of Manchester University of Oxford STFC Rutherford Appleton Lab Univ. of Sussex Univ. of Warwick University of Sheffield June 12, 2016 LBNC meeting 9

10. CPA/FC/HV Coordination and Management Francesco Pietropaolo (CERN), Bo Yu (BNL) – Co-Conveners Victor Guarino (U. Chicago) - Manager Glenn Horton-Smith (KSU) – HVWG convener QC/QA Coordination U.T. Arlington Jonathan Asaadi BNL Bo Yu Rahul Sharma + designer CERN Francesco Piertropaolo Andrea Zani Claudio Montanari Paola Sala + techs, shops U. Chicago Victor Guarino + designer + techs from ANL Princeton Univ Bill Sands + techs Stony Brook Univ. Mike Wilking + students, techs William & Mary Univ. Jeff Nelson Mike Kordosky + techs Louisiana State Univ. Thomas Kutter + techs LBNL Cheng-Ju Lin Tim Loew HV Working Group Kansas State Univ. Glenn Horton-Smith Univ. of Houston Andrew Renshaw UCLA Hanguo Wang Yale Univ. Serhan Tufanli UC Davis Emilija Pantic +DP collaborators CPA/FC Key Resources June 12, 2016 LBNC meeting 10

11. APA-CE Integration Tests BNL small APA vertical slice cold test Use the UW-PSL 40% APA adapted to SBND / ProtoDUNE FEMB Test both SBND and ProtoDUNE feedthrough and CE systems FNAL electronics noise test Use a RF shielded room with 35ton APA, and possible SBND prototype wire frame CERN A cold box/faraday cage with controlled cool down and warm up rate Test each fully assembled APAs with CE and PD in vertical orientation in cold gas Full vertical slice test with signal feedthrough, warm interface, DAQ APAs move into cryostat after passing the test June 12, 2016LBNC meeting11