Second LHC Splices Review
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Second LHC Splices Review. Work Organisation for LS1. Outline. What has to be done ? Main splices Other activities Organization chart and roles Planning Resources Conclusions. Work reported here is the continuation of the tremendous and detailed work done by F Bertinelli.

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Second lhc splices review

Second LHC Splices Review

Work Organisation for LS1

Outline

  • What has to be done ?Main splicesOther activities

  • Organization chart and roles

  • Planning

  • Resources

  • Conclusions

Work reported here is the continuation of the tremendous and detailed work done by F Bertinelli

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

What has to be done …?

To consolidate the superconducting circuits

  • Main splices in the arc

  • DFBA circuits (A Perin)

  • Replace cryomagnets

  • Consolidate connection cryostats

  • NB: Other activities not linked directly to SC circuits:PIMs, Helium level gauges, Y lines, DN200, …

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

Replace cryomagnets

Work Organisation for LS1

Second LHC Splice Review

Courtesy S Izquierdo


Second lhc splices review

Second LHC Splices Review

Replace cryomagnets

14 cryodipoles, 3 SSSs

Q7R3

High internal splice resistance

[ ]

Under assessment : Cryomagnets with wrong beam screens types

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

Replace cryomagnets

Courtesy A Musso

Cryomagnets coordination workspace : https://espace.cern.ch/cryomagnet-coordination/default.aspx

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

Consolidate connection cryostats

Details in ECR: LHC-LE-EC-0003

  • The plan is :

  • Measure and if necessary consolidate the CC 11L8

  • Consolidate the CC in 11L3 & 11L1

  • Measure / inspect all the CCs to check no displacement

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

Installation of DN 200

To be installed during LS1 in 23, 45 (part), 78 & 81: About 600 units

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

Other interventions (not exhaustive)

  • Consolidation of SAM Helium level gauges and DN160

It is planned to consolidate the 2 remaining ones: Q6R2&L8 Support from MME

  • Repair of leaking Y-lines

It is planned to consolidate the 2 known cases (S78:17-19R7 & S81:19-22R8)

  • PIMs (# 45 to be replaced)

  • Buckled during warm-up ≈ 18 (RF ball test)

  • Heavily damaged : ≤ 10

  • Preventive replacements :+ Arc extremities 18/32 in baseline

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Start at P5 / clockwise

5

4

6

SSS

Cryo-dipole

High inner splice

Highest leak

Electrical integrity issue

Beam optics

3

7

DS Coll.(For mem.)

SAM (He, DN160)

Y-lines repair

CC Consolidation / Inspection

DN 200 installation

Triplet braid (End of LS1 for radprot)

Circuit and splices issues

Spread all around : work on leaks, PIMs,

2

8

1

Goal : Special interventions completed before the train arrives : To be checked

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Organisation Chart

Long Shutdown 1

F. Bordry

Consolidation of the superconducting circuits: JPh Tock

Main arc splices cons. “The train”

F Savary #52

Quality Assurance

R Ostojic #39

Open/Close IC [DN200]

A Musso #32

  • Electrical QC: C Scheuerlein #17 See presentation

  • Welding QC: JM Dalin

  • Beam vacuum QC: C Garion

  • Open/close IC QC: D Bodart

  • QA manager support

  • Continuity

  • HV test

  • Sleeves cutting

  • BB surfacing

  • Shunt installation

  • Splice de-&resoldering (15%)

  • Beam lines

  • Cryogenics lines

  • Insulation vacuum

ELQA

TE-MPE

N Catalan #23

Leak Test

TE-VSC

P Cruikshank #19

DFBA

A Perin [#12 (TBC)]

TIG welding

S Atieh #14

Special interventions “SIT”

N Bourcey #15

- Orbital & manual

  • Splices and BB

  • Cryomagnets exchange

  • Connect. Cryostat cons.

  • PIMs

  • Specific issues

  • Heavy NC

Project Office M Pojer #11

  • Radiation protection

  • Safety

  • Access

  • Coordination with Survey, Instrumentation, Transport, LS1 planning, QPS, cryogenics,… Test teams on a chain of IC

  • Reporting tools

  • Opening/ Closure of IC Partial and complete W bellows & ther. shields

  • Installation of DN200

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Detailed roles

  • Open interconnections for :

    • Consolidation of main splices

    • Installation of DN200Partial opening first

    • Recovery of RP samples (LHC-LI-EC-0001)

    • Special interventions

  • Install DN200 (3,5 sectors)

  • Reclose interconnections

Open/Close IC [DN200]

A Musso #32

  • Opening/ Closure of IC Partial and complete W bellows & ther. shields

  • Installation of DN200

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Detailed roles

Main arc splices cons. “The train”

F Savary #52

  • Was covered in details by previous presentations

  • Ensure coordination from opening to readiness for reclosure of M sleeves [Individual IC]

  • Sleeves cutting

  • BB surfacing

  • Shunt installation

  • Splice de-&resoldering

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Detailed roles

  • Was covered in previous slides

  • Polyvalent team

  • Will intervene on heavy NC to avoid slowing down the work of the main train

DFBA

A Perin [#12 (TBC)]

Special interventions “SIT”

N Bourcey #15

  • Cryomagnets exchange

  • Connect. Cryostat cons.

  • PIMs

  • Specific issues

  • Heavy NC

  • Splices and BB

  • See presentation by A Perin tomorrow

  • Still to be defined

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Detailed roles

  • The QA manager will:

  • Coordinate QA activities

  • Ensure that an adequate level of Quality Assurance is applied, especially in terms of traceability (MTF) and documentation

  • Ensure a timely management of the non-conformities, minimizing the impact on the overall schedule

  • Ensure that production parameters are analysed in time to give an early warning in case of drift.

  • Identify as early as possible critical issues that could jeopardize the consolidation work

Quality Assurance

R Ostojic #39

  • Electrical QC: C Scheuerlein #17 See presentation

  • Welding QC: JM Dalin

  • Operators, tooling, procedures qualification

  • QC during production (Visual inspection)

  • Off-line samples

  • Beam vacuum QC: C GarionProtection and inspection of Bellows, PIMsEndoscopy of beam lines

  • Open/close IC QC: D BodartVisual inspection

  • Protection of critical surfaces

  • -QA manager supportTooling, inspection, reporting

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Planning

Rate: 4 weeks for each activity so 53 IC/weekDimensioned to 60 IC/week: 10% marginRemember : Series installation at 30 IC/week !

Courtesy P Fessia

Work Organisation for LS1

Second LHC Splice Review

F Bertinelli @ 1st splices review


Second lhc splices review

One typical sector

Work Organisation for LS1

Second LHC Splice Review

Courtesy K Foraz


Second lhc splices review

Global Planning

  • Preliminarypowering tests

  • Warm-up

  • Opening

  • Splice consolidation

  • (incl. internalleak tests)

  • Closure

  • Leak tests (Ins vacuum)

  • Preparation for cool-down

  • Cool-down

  • [email protected]

  • Powering tests

14 months

Consolidation of main splices in 4 sectors in parallel (13 km)

1st sector cold tested (2nd one), one year after the start of LS1 !

Work Organisation for LS1

Second LHC Splice Review

Courtesy K Foraz


Second lhc splices review

Resources

  • New resources have been identified since the last review

  • Collaboration agreement under finalisation with PAEC for:

  • Opening/Closure of IC (#21)

  • Busbar machining (#11)

  • Welding (#6)

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Resources

> 60% have to be trained !

Some rotation in staff (Collaborations) > 200 individuals

Challenge to have this in parallel with work in tunnel

Work Organisation for LS1

Second LHC Splice Review


Second lhc splices review

Second LHC Splices Review

Conclusions

  • Organisation chart defined and most of the key roles are assigned

  • Workplan almost definedDFBA consolidation definition is starting nowResources to be identified

  • Most of resources are identified

    • BUT: Commitments to be kept

      • To be reviewed with tooling optimization and testwith updated durations

  • The production rate (53 IC/week) is ambitious

  • QA/QC will be implemented to ensure the required quality level

  • No (very little) margin for extra work, bad surprises

  • Work Organisation for LS1

    Second LHC Splice Review


    Second lhc splices review

    Work Organisation for LS1

    Second LHC Splice Review


    Second lhc splices review

    Spare slides

    Work Organisation for LS1

    Second LHC Splice Review


    Second lhc splices review

    Work Organisation for LS1

    Second LHC Splice Review

    Courtesy S Izquierdo


    Second lhc splices review

    Resources status for splices train

    More needs to supervise PAEC : 2 trained for open/closure to identify and 1 extra for cutting

    Work Organisation for LS1

    Second LHC Splice Review


    Second lhc splices review

    Resources for Other activities

    Work Organisation for LS1

    Second LHC Splice Review


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