LEP cryostat Procurement strategy and plans A. Vande Craen, C. Eymin, M. Moretti, D. Ramos CERN Internal review of IR2 LEP cryostats (WP11/WP5)– 17 May 2017

Summary Introduction Procurement strategy Main components Plans and Schedule Conclusion A. Vande Craen

First unit to be assembled from November 2017 Introduction LEP composed of > 250 different components for a total of > 1800 pieces Ranging from standard screws to busbars not forgetting large machined plates and pressure vessel First unit to be assembled from November 2017 Series assembled through 2018 A. Vande Craen

Procurement strategy and plans A. Vande Craen

H-beam plates Specific Procured through EN-MME Stainless steel 304L Tight tolerances (flatness <= 0.2 mm/m) Large dimensions < 0.1 % cobalt content Procured through EN-MME Due to tight tolerances, will be manufactured in house Delivery of first unit Mid-October 2017 A. Vande Craen

Shuffling module Specific Procured by TE-MSC-CMI 3 types Magnet side (identical for Type A and B) Type A, LEN side Type B, LEN side Pressure bearing assembly Tight tolerances < 0.1 % cobalt content Procured by TE-MSC-CMI Specification ready, IT will follow Delivery of first unit expected Mid-October 2017 A. Vande Craen

Small machined components Specific Flanges in 316LN, 3D forged (EDMS 790773) Other components in 304L <0.1 % Cobalt content Procured through EN-MME (subcontracting) Drawings finished end of May Delivery of first unit expected October 2017 A. Vande Craen

Follow-up by TE-MSC-CMI From CERN store Pipes Specific 4 different diameters (M, N, X, V’ lines) 3 standards 1 non-standard (X line) According to specification EDMS 1380627 Follow-up by TE-MSC-CMI From CERN store A. Vande Craen

Designed and manufactured by TE-MSC-LMF Busbars Designed and manufactured by TE-MSC-LMF Delivered with supports and insulation First set ready for October 2017 (see R. Principe’s presentation) A. Vande Craen

LHC standard components Type Cold bores Support posts (fixed and sliding) Interconnection flanges Bellows In stock A. Vande Craen

Standard components Type Follow-up by TE-MSC-CMI Screws, nuts, washers Taps O-rings Braids Follow-up by TE-MSC-CMI List finished end of May Procurement in the shadow of other components A. Vande Craen

MLI Specific Contract follow up by TE-MSC-CMI Contract will include design and manufacture According to CERN specification Contract follow up by TE-MSC-CMI Specification ready, IT will follow Delivery of first unit expected October 2017 A. Vande Craen

Vacuum vessel Specific In combination with 11T cryostats 2 types (Type A and Type B) In combination with 11T cryostats Contract follow up by TE-MSC-CMI (M. Struik) Contract placed Delivery of first unit expected end of October 2017 A. Vande Craen

Bottom tray Specific Contract follow up by TE-MSC-CMI First unit machined at CERN DR created for series In combination with 11T bottom trays Contract follow up by TE-MSC-CMI Delivery of first unit expected end of October 2017 A. Vande Craen

Schedule summary A. Vande Craen

Conclusion A. Vande Craen

Conclusion Procurement strategy and roles well defined Follow-up of so many components is challenging Ready for assembly of first unit in November 2017 Ready for series production in January 2018 Last components at CERN in April 2018 A. Vande Craen

Thank you ! A. Vande Craen