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Inner Tracker and Multiplicity Detector for "Alice" Experiment


Research and Development Towards Technical Design and Manufacturing off the Inner Tracker System (ITS) and the Forward Multiplicity Detector (FMD-MCP) for Alice Experiment at Cern - Phase III

Tech Area / Field

  • PHY-PFA/Particles, Fields and Accelerator Physics/Physics
  • INS-DET/Detection Devices/Instrumentation
  • MAT-COM/Composites/Materials
  • MAT-SYN/Materials Synthesis and Processing/Materials
  • NNE-HCS/Heating and Cooling Systems/Non-Nuclear Energy
  • PHY-ANU/Atomic and Nuclear Physics/Physics

8 Project completed

Registration date

Completion date

Senior Project Manager
Bugaev D V

Leading Institute
TsKBM, Russia, St Petersburg

Supporting institutes

  • St Petersburg State University / Institute of Physics, Russia, St Petersburg


  • CERN, Switzerland, Geneva\nIstituto Nazionale di Fisica Nucleare (INFN -sez.Torino), Italy, Torino\nUtrecht University, The Netherlands, Utrecht

Project summary

The aim of the project is the pilot prototyping and testing which are necessary before the final stage of the production of the full scale integrated systems of ITS-CMA and FMD-MCP for ALICE experiment at LHC at CERN.
The importance of the project is in the following:
- the primary goals of the ISTC are met by the continuation of active involvment of the former military oriented personell in the true international R&D: 65 % of the total number of participants enlisted in this grant are in the category No1, i.e..65 % of the total working days, and about 70 % of the expences are prescribed for the former military oriented enterprizes.
- High experienced manpower will continue to contribute to the ALICE preparations at the LHC
- the technology international challenges are to be met will be used for the production of the unique detector subsystems for ALICE
The present Proposal for the one-year Phase-III is focused on:
1. The application of new technologies of space frame support structures manufacturing to both Silicon Drift Detector and Strip Detector layers of the ITS .
2. Tests of the large scale cooling system ITS prototype prepared during the Phase-II .
3. The preparations of the test equipment and the extensive tests of the portable independent hermetised thin wall vacuum chamber that includes sector MCPs with multipad anodes and passive summator.
The exepected results are:
- The pilot prototypes and tachnology for the ladders of the 3, 4 SDD and 5, 6 SSD layers of the ITS,
- Tests of the pilot prototype of the ALICE FMD-MCP.
Scope of activities the programme includes:
- Development of the technologies for the 4-6 ITS layer SDD and SSD extra lightweight support structures,
- Temprature tests of the prototype ITS cooling system for the 3-6 layer.
- Tests of FMD-MCP sector detector in the thin wall portable vacuum chamber
The Technical Approach and Methodology are based on the systematic approach used from the very start by the St.Petersburg team:
- analysis of the physical programme of studies
- broad simulations of the detectors performance,
- sound engineering of mechanical and temperature related issues
- preparations and development of technologies,
- analysis and selection of the appropriate materials
- manufacturing of the prototypes
- extensive tests of the technologies and prototypes
- general design with the account of integration of different technologies
Therefore all the different know-how and the advanced specific techologies are integrated into the final product, while the results of tests show the fullfilment of the requirements coming from the physical programme.


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