CERN/LHCC 99-30 LHCC 42 6 September 1999
 
 
 
 

LARGE HADRON COLLIDER COMMITTEE

Minutes of the forty-second meeting held on

Thursday, 2 September 1999


 
 


OPEN SESSION:
1. ALICE Muon Arm TDR (LHCC 99-22):
F. Staley, E. Vercellin, Y. Le Bornec


 
 
CLOSED SESSION:
Present: B. Adeva, G. Altarelli, W. Bartel, J. Carr, R. Cashmore, M. Delfino, H. Dijkstra*, J. Engelen (Chairman), A. Ereditato, B. Foster, U. Heinz*, M. Kasemann, R. Kephart, H. Kolanoski, R. Landua (representing G. Goggi), J. Lee-Franzini, J. May, M. Mazzucato, K. Potter, A. Rostovtsev, P. Roudeau, T. Ruf (Secretary), H. Schellman, P. Sharp*, G. Zech.
*) Part time
Apologies: L. Evans, H. Hoffmann, S. Komamiya, L. Maiani, A. Read, L. Rolandi, E. Tsesmelis.
 
1. INTRODUCTION

The meeting started with a moment of silence remembering Mike Sendall who died on 15th July after a long illness. He was the secretary of LHCC since its conception, contributing in his quiet and effective manner to its successful operation.

The minutes of the forty-first LHCC meeting (LHCC 99-25 / LHCC 41) were approved with the following amendments: in point 6 (report from the LHCb referees) "October 1999" should read "December 1999", second paragraph in point 7 (ALICE Transition Radiation Detector Addendum to Technical Proposal) "Technical Design Review" should read "Technical Design Report".

2. REPORT FROM THE ALICE REFEREES

The Committee heard a report from the ALICE referees, concentrating on the review of the Technical Design Report for the Inner Tracking System (ITS) with H. Dijkstra as consultant.

The referees also reported on their preliminary reactions to the Technical Design Report for the Dimuon Forward Spectrometer. Following further questions and discussions, the referees will make a full report at the next meeting of the LHCC.

The referees also reviewed the schedule for the remaining ALICE Technical Design Reports.

3. REPORT FROM THE LHCb REFEREES

The Committee heard a short report from the LHCb referees covering the general status. A full review is planned for the next meeting of the LHCC.

4. REPORT FROM THE ATLAS REFEREES

The Committee heard a report from the ATLAS referees, concentrating on the status of the inner detector, which consists of the Transition Radiation Tracker (TRT), the Semi Conductor Tracker (SCT) and the pixel system. They noted very good technical progress. The problems with the FE chips, which had been delaying the project, seem to be solved now. Work on the integration of the system is now receiving high priority.

The referees also reported on the status of the liquid argon calorimeter and of the B0 coil. A brief report on the restructuring of the ATLAS computing project was presented.

An updated list of milestones will be presented at the next meeting of the LHCC.

5. REPORT FROM THE CMS REFEREES

The Committee heard a report from the CMS referees, concentrating on the status of the of the muon system.

The referees also reported on the tracker. An extensive MSGC test programme is presently in progress at PSI. A final evaluation is expected in December.

The referees also reviewed the CMS milestone schedule.

6. ALICE ITS COST REVIEW

W. Bartel has provided a cost evaluation of the ALICE ITS, the conclusions of which show that the cost estimates reported in the TDR are considered to be reasonable.

7. ALICE ITS TECHNICAL DESIGN REPORT

The LHCC has completed its scientific, technical, and cost evaluation of the ALICE Inner Tracking System TDR submitted in June 1999. The Committee was impressed by the quality of the work and congratulates the collaboration. The TDR describes a modern and technically feasible tracking system based on semi-conductor technologies that in conjunction with the TPC satisfies the requirements dictated by the physics programme.

The Committee has no major concern; however, an ancillary document (LHCC 99-31) contains items of lesser concern as well as a list of agreed milestones for monitoring the progress of the project.

The LHCC review was not an engineering review, although some engineering aspects of the project were presented and discussed with the referees. It is recommended that ALICE conducts an independent review of engineering designs. Written reports should be made available to the LHCC through its referees.

Recommendation

The LHCC recommends general approval of the ALICE ITS Technical Design Report. The LHCC considers the schedule given in the TDR and the revised list of milestones in the ancillary document to be reasonable. They will be used by the Committee to measure and regulate the future progress of the project.

8. TEST BEAMS

T. Ruf showed the updated schedules of the 1999 SPS and PS Fixed Target Programmes, including that of the Lepton Pre-Injector (LPI) at the PS Complex. He also provided a status report of the various test beam activities. The overall efficiency of the PS Complex is above 90% and that of the SPS above 80%.

9. ANY OTHER BUSINESS

There was no other business
.
10. DATES FOR 1999 MEETINGS

20 - 21 October (Wed - Thur)
 

The LHCC received the following documents

· ALICE Collaboration: Muon Arm Technical Design Report
(LHCC 99-22 / TDR 5)

· Summary of CMS milestones (LHCC 99-26)*

· Cost evaluation of the ALICE ITS Technical Design Report

(LHCC 99-29)*

· Review of the ALICE Inner Tracking System (LHCC 99-31)*
 
 

* Restricted circulation only.


  Thomas Ruf
Eómail: LHCC.Secretary@CERN.CH
Tel. 79237

 
 

LHCC Secretariat: Janet Grant (Bldg. 14/4-022) Tel. 73424
Janet.Grant@CERN.CH