Production Cryo HL-LHC BPMs G. Schneider, R. Veness, M. Krupa, M. Wendt WP 13 meeting 27/05/2019

HL-LHC BPMs Q1 to D2 BPMQSTZA BPMQSTZB BPMQSWZA/B BPMQBWZA/B TOTAL Series 4 20 8 36 Spares 2 Prototypes Courtesy M. Krupa WP13 meeting

Installation example BPMQSZTB G. Schneider BE-BI

Example of BPM, here BPMQSTZB G. Schneider BE-BI

HL-LHC BPM Addendum CERN delivers material Many skills required: Precision machining Gold plating Copper plating without organic additives (100 microns) Electron beam welding Laser welding Brazing to tungsten Precision tube bending Precision metrology UHV Cleaning 27/05/2019

BPM body status Drawings in advanced states BPM body produced Manufacturing studies ongoing CF DN16 manufacturing options Increase screw from M4 (is M5 now) to M6 Copper plating CERN has 100% in-house knowledge 27/05/2019

BPM installation shared responsibility WP12/WP13/WP15 Memorandum EDMS 2105453 close to be finalized Responsibility share between BE-BI, EN-SMM TE-VSC and TE-MSC for the assembly of HL-LHC Inner Triplet and D2 Cryogenic Beam Position Monitors 27/05/2019