LHC Hardware Baseline - PowerPoint Presentation

Slide1

LHC Hardware Baseline

Samy Chemli EN-MEF

November 2012Slide2

Hardware Baseline

Approved ECR

ECR under approval

ECR approval closed

Test

Procedures

Installation Procedures

Open ItemsSlide3

Approved ECR

LHC-JSM-EC-0001

Released

2012-03-14

R2E shielding for LHC Points 1, 5 and 8

A.L. Perrot, R2E Project

The level of flux of hadrons with energy in the multi MeV range expected from the collisions at the interaction Points 1, 5 and 8 induce Single Event Errors (SEE) of the standard electronics present in many of the control equipment. Such events perturb the LHC. It is proposed to install additional shielding to protect the equipment that cannot be moved. This process is foreseen in two phases as the beam current and luminosity rise. Phase I consists in installing shielding in the RBs, UJs around Point 1. Phase II consists in installing shielding in US85 and in the RRs around Points 1 and 5. It is proposed to perform Phase I during the 2011-2012 Christmas break and Phase II during the Long Shutdown 1 (LS1). This ECR documents these two phases.Slide4

Approved ECR

LHC-TCDQ-EC-0003

Released

2012-04-04

Upgrade of TCDQ Collimator

Wim Weterings, Brennan Goddard

This ECR includes the following proposed changes in IR6:

• Increased length of the TCDQ collimator system from 6.85 m to 10.40 m.

• Modify the composition of the absorber blocks of the TCDQ.

• Improve the design of the VMTAB large displacement bellows.

• Changed positions of the BPMs in this regionSlide5

Approved ECR

LHC-VC5-EC-0001

Released

2012-08-21

CMS Central Chamber Diameter Reduction

M.A.

Gallilee

This Engineering Change Request (ECR) is concerned with the reduction in diameter of the CMS central beryllium chamber. The request is for a reduction in inner diameter from 58 mm to 43.4 mm.

This change has been studied in depth from an engineering perspective, and approved by both the LEB Working Group, and the LHC Machine Committee. This document

summarises

the effects of this changeSlide6

Approved ECR

LHC-VC1I-EC-0001

Released

2012-08-17

Reduction of ATLAS VI Chamber Diameter

M.A.

Gallilee

This Engineering Change Request (ECR) is concerned with the reduction in diameter of the ATLAS VI chamber. The request is for a reduction in inner diameter from 58 mm to 47 mm.

This change has been studied in depth from an engineering perspective, and approved by both the LEB Working Group, and the LHC Machine Committee. This document

summarises

the effects of this change.Slide7

Approved ECR

LHC-VC1-EC-0002

Released

2012-08-17

Material Change ATLAS VA & VT Chambers

M.A.

Gallilee

This Engineering Change Request (ECR) is concerned with the change of material of the ATLAS VA and VT chambers from stainless steel to

aluminium

AA2219. The change has no effect on aperture.

This change has been studied and accepted by the CERN BE/RF and BE/ABP-ICE.Slide8

Approved ECR

LHC-XAFP-EC-0001

Released

2012-07-06

Space Reservation in the LSS1 for the ATLAS Forward Physics Project (AFP)

D.

Macina

The ATLAS Forward Physics Project (AFP) is part of the ATLAS Upgrade Project and requires the installation of movable detectors at about 210 m on either side of IP1. Therefore, with this ECR, ATLAS requests to reserve the space between Q5 and Q6 (from 200.253 m to 221.379 m) for the integration of AFP.Slide9

Approved ECR

LHC-LJ-EC-0027

Released

2012-10-11

Protection of equipment located in UJ14 and UJ16

A. L. Perrot for R2E

The level of radiation expected from the collisions at the interaction point 1, and more precisely the flux of hadrons with energy in the multi MeV range, will induce Single Event Errors (SEE) of the standard electronics present in many of the control equipment located in UJ14 and UJ16. Such events would perturb the LHC, possibly leading to critical situations for the machine elements. It is furthermore proposed to relocate part of the equipment installed in UJ14/16 into UL14/16 and US15, where the amount of radiation is reduced. The relocation of the SEE sensitive equipment identified by the RADWG is foreseen for the first LHC long shutdown. This ECR documents this implementationSlide10

Approved ECR

LHC-LJ-EC-0026

Released

2012-10-11

Protection of equipment located in UJ56

A. L. Perrot for R2E

The level of radiation expected from the collisions at the interaction point 5, and more precisely the flux of hadrons with energy in the multi MeV range, will induce Single Event Errors of the standard electronics present in many of the control equipment located in UJ56. Such events would perturb the LHC, possibly leading to critical situations for the machine elements. It is furthermore proposed to relocate part of the equipment installed in UJ56 (almost all first floor racks) into the UL557 bypass gallery, where the amount of radiation is reduced. The relocation of the SEE sensitive equipment identified by the RADWG is foreseen for the first LHC long shutdown. This ECR documents this implementationSlide11

Approved ECR

LHC-DQS-EC-0001

Released

2012-10-24

Replacement of the Original, 200V Arc Chambers by the 1050V Dipole Version on the Energy Extraction Switches of the LHC Main

Quadrupole

Circuits

K.

Dahlerup

-Petersen

The proposal concerns the replacement of the 128 existing arc chambers which are presently equipping the LHC

quadrupole

extraction switches (DQSQF/DQSQD) by the type of arc chambers which are in used on the extraction switches of the 8 LHC main dipole circuits (DQSB, also 128 units). This change will remove a major obstacle for operating the LHC machine up to nominal beam energy while at the same time maintaining the extraction discharge time constants of 9.5 s which were introduced in these 16 LHC circuits at the same time as the implementation of the

nQPS

system for operation up to 3.5

TeV

.Slide12

Approved ECR

LHC-QBBI-EC-0002

Released

2012-10-24

Modification of the Interconnection Thermal Screen

A.

Musso

The interconnections thermal screens (TSs) are presently welded in-situ during installation. The proposed change foresees to fix them mechanically avoiding welds in underground areas, by means of a screwed clamp.Slide13

Approved ECR

LHC-Y-EC-0007

Released

2012-10-24

Creation End-of-Zone Door for Material Transfer between USC55 and the Point 5 Bypass

C.

Bertone

Changes are proposed to improve access to the LHC point 5 bypass tunnels for large and heavy items. The changes include an increase in the size of the existing passage in the wall between USC55 and the bypass, the installation of a new ‘end-of-zone’ door for wide material passage and relocation of some wall-mounted equipment in the area of the passage.Slide14

Approved ECR

LHC-S-EC-0007

Released

2012-11-23

Modification of the LHC UJ43/UJ47 Chicanes.

M.

Galofré-Vilà

On the 26th of January 2011, during the execution of a LHC regular drill, we identified an access problem while crossing the UJ-47 chicane (located 2,440 meters from PM 45) with Fire Brigade intervention electrical powered tractors and trolley (

Pefra

®). The inaccessibility via the chicanes compromise Fire Brigade operational deployment in case of emergency intervention. In order to restore the accessibility the ECR propose modification on UJ-43 & UJ 47 to grant the access.Slide15

Hardware Baseline

Approved ECR

ECR under approval

ECR approval closed

Test

Procedures

Installation Procedures

Open ItemsSlide16

ECR Under Approval

LHC-LJ-EC-0028

Under Approval

Version 0.2

New BPM and vacuum bellow in the area between the VAX and the TAS in IP 1 and 5.

J. Bosch, M.A.

Gallilee

This Engineering Change Request (ECR) proposes to modify the current BPM layout by combining them and to introduce a longer bellow in the area between the VAX and the TAS equipment of Interaction Points 1 and 5Slide17

ECR Under Approval

LHC-VAM-EC-0001

Under Approval

Change of the Warm Module in ALICE at 9 m left of the IP.

G. Schneider

The low pressure gauges of the ALICE vacuum system are installed today at about

20 m from

the IP. An additional vacuum gauge is proposed at the level of the Central Compensator Magnet (MBWMD) about 9 m left of the IP. This will require a new warm module as part of a new vacuum assembly of type VAMAPSlide18

ECR Under

A

pproval

LHC-QBBI-EC-0001

Under Approval

Protective half shells for the vacuum lines

C.

Garion

This ECR is related to the installation of protective half shells for the LHC cold vacuum line interconnections.Slide19

ECR Under

A

pproval

LHC-LV-EC-0001

Under Approval

TDI vacuum

sectorization

C4L2/C4R8

E. Page

To reduce the length of the vacuum sectors A4L2.C and A4R8.C and to minimize the intervention time while optimizing the vacuum performances, the TDI

sectorization

, part of the LHC base line, is proposed to be implemented during LS1. This document describes the new layoutSlide20

ECR Under

A

pproval

LHC-CIP-EC-0003

Under Approval

Change of the Interlocking of Powering and Access Systems

J.

Wenninger

, I.

Romera

Ramìrez

, T.

Ladzinski

This document describes modifications to the interlocking of powering and access system for the LHC after LS1. The link between the LHC Access Safety System and the LHC Software Interlock System, currently based on the TIM infrastructure, will be replaced by a more robust solution, even though the communication will still mostly rely on software.Slide21

ECR Under

A

pproval

LHC

-

BPMWI

-

EC

-

0001

Under Approval

BPM for Gated Tune Measurement in IP4

C.

Boccard

This Engineering Change Request (ECR) describes the proposed installation of one additional pair of BPMs for gated tune measurement in 6R4. This draft ECR will help to identify the cost, the effort, impact on the machine performance and expected improvement of beam diagnostics.Slide22

ECR Under

A

pproval

LHC

-

VPN

-

EC

-

0002

Under Approval

Non Evaporable Getter Cartridges Installation in the ADT (transverse damper) Area of the LSS4 of LHC

G.

Bregliozzi

This ECR describes the position of the Non Evaporable Getter (NEG) cartridges that will be installed in the LHC accelerator during the Long Shutdown 1 (LS1) in the ADT area of the Long Straight Section 4Slide23

ECR Under

A

pproval

LHC

-

VPN

-

EC

-

0003

Under Approval

Non Evaporable Getter Cartridges Installation in the VAX Area of LSS2 and LSS8 of LHC

G.

Bregliozzi

This ECR describes the position of the Non Evaporable Getter (NEG) cartridges that will be installed in the LHC accelerator during the Long Shutdown 1 (LS1) in the VAX area of the Long Straight Section (LSS) 2 and 8.Slide24

ECR Under

A

pproval

LHC

-

Y

-

EC

-

0008

Under Approval

Additional Radiation Vetoes in Access Locations Leading to the Injection Lines and Beam Dump Transfer Galleries

S.

Roesler

This modification introduces additional Radiation Vetoes in four regions of the LHC accelerator which today are partly classified as Supervised and Simple Controlled Radiation Areas and partly as Limited Stay Radiation Areas and, thus, allows a separate control of these areasSlide25

ECR Under

A

pproval

LHC

-

VVG

-

EC

-

0001

Under Approval

Sector Valves Upgrade

J.

Chauré

Cette ECR présente le projet d’amélioration du temps de fermeture des vannes de secteur du LHC et l’introduction d’accumulateurs d’air comprimé dans le tunnel à proximité des vannes de secteurSlide26

ECR In Work

LHC

-

BBC

-

EC

-

0001

In Work

LHC Long Range Beam-Beam Compensator Prototype – Powering Aspect

V.

Montabonnet

,

R.

Steinhagen

Installation of the powering circuits for the LHC Long-Range Beam-Beam Compensator (LHC-BBC) prototypes to assess the physics performance, operation of these compensators. The aim of the LHC-BBC is to improve physics performance of the LHC by mitigating the deteriorating effects of long-range beam interactions around the two high luminosity insertions in view of the LHC High-Luminosity project Slide27

ECR In Work

LHC

-

QBBI

-

EC

-

0003

In Work

Consolidation of the 13kA Splices of the Main Circuits in the LHC

S. Le

Naour

A large campaign of consolidation of the LHC machine, called LS1 (Long Shutdown 1), will be held from spring 2013 to autumn 2014 to ensure continuity of the main

busbars

(13kA) in the interconnects between the magnets around the machine. At each connection from the current lead of DFBA to the other current lead, one or two copper shunts will be soldered at each side of the spliceSlide28

Hardware Baseline

Approved ECR

ECR under approval

ECR approval closed

Test

Procedures

Installation Procedures

Open ItemsSlide29

ECR Approval Closed

LHC-DQ-EC-0003

Approval closed

Voltage-Adjustable Trigger Introduction for Discharge in the Quench Heater Circuits of the LHC Main Magnets to use at Heater Circuit Qualification

K.

Dahlerup

-Petersen

In addition to the existing, operational trigger for activation of the process of discharge of the quench heater power supplies, driven by the QPS quench protection interlock or a command from the ‘QPS Expert’ platform, a new software application has been developed. It is intended for use during verification of the discharge circuits. The new facility is a software creation which allows discharges at a pre-determined voltage lower than the nominal level of capacitor charging (normally between 850V and 920V)… Application is particularly recommended after warm-up of the cold masses above 80K.Slide30

Hardware Baseline

Approved ECR

ECR under approval

ECR approval closed

Test

Procedures

Installation Procedures

Open ItemsSlide31

Test Procedure Released

LHC-DE-TP-0010

Released

2012-06-20

Internal Splices Resistance Measurements (ISRM) on Dipoles Located in S12.

G.

D’Angelo

This document describes the configuration of dipole magnet in sector 1-2, the measuring equipment and the procedure to be followed step by step in order to measure all internal splices of dipole magnet in sector 1-2Slide32

Test Procedure Released

LHC-QBBI-TP-0002

Released

2012-09-18

Visual Inspection and Geometrical Test of the US Welded Line N Splices.

S. Heck, C.

Scheuerlein

This document defines the procedure for the visual inspection and geometrical test of the US welded line N splices.Slide33

Test Procedure Released

LHC-QBBI-TP-0003

Released

2012-09-19

Visual Inspection and Geometrical Test of the US Welded Auxiliary

Busbar

Splices in Lines M1 and M2.

S. Heck, C.

Scheuerlein

This document defines the procedure for the visual inspection and geometrical test of the US welded auxiliary

busbar

splices in lines M1 and M2 that will be produced during the LS1 shutdown.Slide34

Test Procedure Released

LHC-QBBI-TP-0004

Under Approval

Version 0.2

Quality Control of the LHC Main Interconnection Splices Produced during LS1 (before Application of Shunts).

S. Heck, C.

Scheuerlein

This document defines the procedure and acceptance criteria that will be used to control the quality of the 13 kA LHC main interconnection splices to be produced during the first long LHC shut down LS1. The splice QC will be performed on the splices before applying shunts.Slide35

Test Procedure Released

LHC-QBBI-TP-0005

Under Approval

Version 0.2

Quality Control of the

Stabilised

LHC Main

Busbar

Cables before Splice Assembly

S. Heck, C.

Scheuerlein

This procedure defines the quality control and acceptance criteria for the

stabilised

13 kA LHC cables before the assembly and (re-) soldering of the main interconnection Splices.Slide36

Test Procedure Released

LHC-QBBI-TP-0006

Under Approval

Version 0.2

Quality Control Of the LHC Main Interconnection Splices Produced before LS1 (before Application of Shunts)

S. Heck, C.

Scheuerlein

This document defines the procedure and acceptance criteria that will be used to control the quality of the existing main LHC interconnection splices that have been produced before LS1. The splice QC will be performed on the splices before applying shunts.Slide37

Hardware Baseline

Approved ECR

ECR under approval

ECR approval closed

Test

Procedures

Installation Procedures

Open ItemsSlide38

Installation Procedure

LHC-QBBI-IP-0017

Under Approval

1.1 – Opening of W Bellows

G. Barlow

Procedure for opening the interconnection W bellows. Starting from a closed section until the removal of the radiation shield. This document determines the procedure for removing the W bellows, MLI, thermal shield and radiation shield of a cryostat interconnection

.Slide39

Installation Procedure

LHC-QBBI-IP-0016

Under Approval

Version 0.2

1.2 – Installation of DN200

O.

Housiaux

, J.M. Gomes de

Faria

, J-M.

Demolis

The procedure for installing the DN200 pressure relief valves of the dipole cryostats of the LHC accelerator

.Slide40

Installation Procedure

LHC-QBBI-IP-0023

In Work

3.2 –

Découpe

soudures

manchettes

M

R. Principe

Procédure

d’utilisation

de

l’outil

de

découpe

des

soudures

des

manchettes

des

lignes

M1, M2, M3, des

interconnexions

13kA

.Slide41

Installation Procedure

LHC-QBBI-IP-0014

Released

2012-10-16

4.1 - Capture

soufflet

M

R. Principe

Procédure d’utilisation de l’outil de compression hydraulique et de l’outil de capture des soufflets des lignes M, des interconnexions 13kA. En particulier, le document explique les principes de fonctionnement du groupe hydraulique

Enerpac

et détermine le mode opératoire de l’outil de compression et la méthode pour le montage de l’outil de capture sur les soufflets des lignes M1, M2 et M3, des interconnexions 13kA.Slide42

Installation Procedure

LHC-QBBI-IP-0011

Released

2012-10-16

4.2 -

Dépose

isolation

interconnexion

R. Principe

Procédure de démontage des isolations des

busbars

principaux des lignes M1, M2, M3, des interconnexions 13kA. En particulier, le document explique le mode opératoire du démontage des isolations des

busbars

principaux des lignes M1, M2 et M3, des interconnexions 13kA.Slide43

Installation Procedure

LHC-QBBI-IP-0022

Under Approval

6.1 -

Débrasage

par Induction U /Plat de

Fermeture

R. Principe

Procédure de débrasage des

busbars

principaux pour les interconnexions 13kA. En particulier, le document explique le mode opératoire de débrasage par induction, des profils en U et des plats de fermeture, des

busbars

des lignes M1, M2, M3, dans le cadre de l’amélioration des connexions des interconnexions 13kASlide44

Installation Procedure

LHC-QBBI-IP-0015

Under Approval

6.2 –

Stabilisation

Câble

Supraconducteur

R. Principe

Procédure de stabilisation du câble supraconducteur des

busbars

principaux pour les interconnexions 13kA. En particulier, le document explique le mode opératoire de stabilisation d’un câble supraconducteur ou d’une paire de câble supraconducteur, des

busbars

des lignes M1, M2, M3, pour les interconnexions 13kA.Slide45

Installation Procedure

LHC-QBBI-IP-0013

Under Approval

8.1 -

Brasage

par induction U/plat de

fermeture

R. Principe

Procédure de brasage des

busbars

des lignes M1, M2, M3 pour les interconnexions 13kA. En particulier, le document explique le mode opératoire de brasage par induction, des plats de fermeture et profiles en U, des

busbars

des lignes M, dans le cadre de l’amélioration des connexions des interconnexions 13kA.Slide46

Installation Procedure

LHC-QBBI-IP-0025

In Work

10 –

Usinage

Busbar

pour Shunt

R. Principe

Procédure

d’usinage

des

busbars

des

lignes

M1, M2, M3

avant

brasage

de shunts, pour les

interconnexions

13kA.Slide47

Installation Procedure

LHC-QBBI-IP-0021

Under Approval

11.1 -

Brasage

Shunt

sur

Busbar

R. Principe

Procédure de brasage de shunts sur les

busbars

des lignes M1, M2, M3 pour les interconnexions 13kA. En particulier, le document explique le mode opératoire de brasage de shunts, sur les

busbars

des lignes M1, M2, M3, dans le cadre de l’amélioration des connexions des interconnexions 13kASlide48

Installation Procedure

LHC-QBBI-IP-0020

Under Approval

11.2 –

Débrasage

Shunt du

Busbar

R. Principe

Procédure de débrasage de shunts des

busbars

des lignes M1, M2, M3 pour les interconnexions 13kA. En particulier, le document explique le mode opératoire de débrasage de shunts, des

busbars

des lignes M1, M2, M3, des interconnexions 13kASlide49

Installation Procedure

LHC-QBBI-IP-0024

In Work

13.1 – Montage

boitier

isolation

busbar

R. Principe

Procédure

de montage du

boitier

d’isolation

des splices des

lignes

M1, M2, M3, des

interconnexions

13kA et 600A.Slide50

Installation Procedure

LHC-QBBI-IP-0019

Under Approval

13.2 –

Démontage

Capture

Soufflet

M

R. Principe

Procédure d’utilisation de l’outil de compression hydraulique et du démontage de l’outil de capture des soufflets des lignes M, des interconnexions 13kA. En particulier, le document explique les principes de fonctionnement du groupe hydraulique

Enerpac

, et détermine le mode opératoire de l’outil de compression et la méthode pour le démontage de l’outil de capture des soufflets des lignes M1, M2 et M3, des interconnexions 13kASlide51

Installation Procedure

LHC-QBBI-IP-0018

Under Approval

15.1 – Closing of W Bellows

G. Barlow

Procedure for closing the interconnection W bellows. Starting from replacing the radiation shield until the closing of the W

bellows.This

document determines the procedure for replacing the radiation shield, thermal shield, MLI and W bellows of a cryostat interconnection

.Slide52

Hardware Baseline

Approved ECR

ECR under approval

ECR approval closed

Test

Procedures

Installation Procedures

Open ItemsSlide53

Open Items

LHC-DE-TP-0007

ELQA Qualification of the Superconducting Circuits during Hardware

Commissionning

Under Approval. Waiting for rewriting after TETM meeting in October.