TS Workshop

Session

LHC & Experiments I

4 May 2004, 08:30

Archamps

6. Welcome

Ciriani, P.

04/05/2004, 08:30

7. Introduction to the session

Potter, K.

04/05/2004, 08:35

1. THE ALICE DIPOLE MAGNET

Swoboda, D.

04/05/2004, 08:40

The design and construction of the ALICE dipole magnet has been co-ordinated within the LEA group. Several teams from collaborating institutes as well as design and engineering resources from CERN participated in the project. The construction of the different main components was entrusted to industry in several countries. The paper highlights some of the major design features and engineering...

8. METROLOGIE DES EXPERIENCES : DEFIS ET RESULTATS

Lasseur, C. , Gayde, J-C.

04/05/2004, 09:00

La physique des particules a toujours exige une connaissance precise de la geometrie des equipements experimentaux et la metrologie des detecteurs a ete de concert avec celle des accelerateurs. Les premiers systemes de detection, de dimensions modestes, demandaient deja un positionnement le plus pres du ‘theorique’, les premieres mesures tridimensionnelles ont ete pratiquees pour la...

9. SYSTEME DE PLC POUR LA SUPERVISION DE LA DISTRIBUTION BASSE TENSION DES EXPERIENCES ALICE ET LHCB

Burdet , G.

04/05/2004, 09:20

Le groupe TS/EL étudie et réalise la distribution électrique basse tension pour alimenter les racks contenant l’électronique associée aux détecteurs dans les zones expérimentales du LHC. La distribution basse tension utilisera des tableaux récupérés des expériences du LEP pour ALICE et LHCb et un système basé sur des gaines CANALIS pour ATLAS et CMS. L’ensemble de la distribution électrique...

10. THE RADIATION MONITORING SYSTEM FOR THE LHC EXPERIMENTS AND EXPERIMENTAL AREAS

Ilgner, C.

04/05/2004, 09:40

With the high energies stored in the beams of the LHC, special attention needs to be paid to accident scenarios involving beam losses which may have an impact on the installed experiments. Among others, an unsynchronized beam abort and a D1 magnet failure are considered serious cases. According to simulations, the CMS inner tracker in such accident scenarios can be damaged by instantaneous...

11. INTEGRATION OF FORWARD PHYSICS DETECTORS INTO THE LSS OF THE LHC

Macina, D.

04/05/2004, 10:00

Experimental detectors will be installed in the Long Straight Sections (LSS) of the LHC. The reasons why the experiments need to locate detectors in the machine tunnel will be explained. A detailed description of the TOTEM Roman Pot in the LSS5 and the ALICE Zero Degree Calorimeter (ZDC) in the LSS2 will be given. A few new proposals in the LSS1 and the LSS8 will also be mentioned. Integration...

12. COFFEE BREAK

04/05/2004, 10:20

13. INSTALLATION OF THE LHC EXPERIMENTAL INSERTIONS

Bartolome-Jimenez, S.

04/05/2004, 10:40

The installation of the LHC experimental insertions, and particularly the installation of the low-beta quadrupoles, raises many technical challenges due to the stringent alignment specifications and to the difficulty of access in very confined areas. The compact layout with many lattice elements, vacuum components, beam control instrumentation and the presence of shielding does not allow for...

14. VACUUM CHAMBERS FOR LHC LSS

Costa Pinto, P.

04/05/2004, 11:00

The approximately 6 km total length of the Large Hadron Collider (LHC) warm sections consist of about 1000 chambers. Most of these chambers, of various length and cross sections, are made of copper, but different lengths in stainless steel, mumetal, aluminium and beryllium will also be used. All the chambers will be internally coated with a thin film of TiZrV, to reduce both the secondary...

2. LAYOUT DRAWINGS OF THE LHC COLLIDER

Vergara, A.

04/05/2004, 11:20

The team in charge of the LHC integration largely uses 3D scenes combining functional positions of equipments and the 3D CAD model issued from the CERN Drawing Directory (CDD) repository. This is made possible through the Digital Mock-Up tool developed at CERN. Giving dimensions in 3D context is a challenge with the current 3D CAD tools used at CERN. Requirements from users groups have made...

3. LARGE SCALE DEPLOYMENT OF MTF AND LESSONS LEARNED

Mallon, S., Manola-Poggioli, E.

04/05/2004, 11:40

The MTF system was developed to capture the design, manufacturing, test and installation data of equipment built for LHC. Today, more than 120.000 descriptions of LHC equipment are being managed with the MTF. The acquisition of the equipment data is both an organisational and a technical challenge. For expensive equipment such as the LHC dipoles a reliable and robust non-conformance...

4. INSTALLATION OF A PARTICLE ACCELERATOR: FROM THEORY TO PRACTICE

Foraz K., Vitasse, M., Weisz, S.

04/05/2004, 12:00

The size and complexity of the LHC project at CERN calls for a strong co-ordination of all installation activities. The detailed installation planning has to take into account many constraints such as the component production rates, the installation contracts or the transport and handling requirements in a narrow tunnel with limited access points. The planning also needs to be flexible enough...

5. Conclusions

Potter, K.

04/05/2004, 12:30