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Tracker System for ALICE Experiment

#0345


Research and Development Towards the Technical Design and the Manufacturing of the Inner Track system (ITS) and of the Forward Multiplicity detector (FMD-MCP) for the ALICE Experiment at CERN.

Tech Area / Field

  • INS-DET/Detection Devices/Instrumentation

Status
8 Project completed

Registration date
05.01.1995

Completion date
24.12.1999

Senior Project Manager
Ryabeva E V

Leading Institute
TsKBM, Russia, St Petersburg

Supporting institutes

  • Nuclear Physics Institute, Russia, Leningrad reg., Gatchina\nNPO Granit, Russia, St Petersburg\nMendeleev Institute of Metrology, Russia, St Petersburg\nKurchatov Research Center, Russia, Moscow\nNPO Avangard, Russia, St Petersburg\nSt Petersburg State University / Institute of Physics, Russia, St Petersburg\nJoint Institute of Nuclear Research, Russia, Moscow reg., Dubna

Collaborators

  • Universiteit Utrecht, The Netherlands, Utrecht\nIstituto Nazionale di Fisica Nucleare (INFN), Italy, Ferrara\nCERN, Switzerland, Geneva

Project summary

The main items in the development of the ITS which are included in the present proposal we the follwing:

- Development of a 1rn3 light (Carbon fiber) mechanical structure of high pre-cision (« 10 pui) with long-term stability (« 10 years) embedding a diffuse ByHlcm for temperature control (w 0.1 °C) and cooling (= 5 kW) for applica tions in High-Energy Physics experiments.

- Development of higly integrated ultralight cables.

- Technological methods of ultralight materials production and application in the field of the High Energy Physics

- Development of novel systems of electronic components cooling , and of high precision positioning and control of the ITS.

- Establishment of manufacturing and testing capability in view of the final production of the support structure, cooling system, alignement and temperature controls.

The novel Forward Multiplicity Detector based on the application of microchan-nel plates (MGPs) situated inside the beam pipe in vicinity to the interaction point is closely connected with the ITS, since the two detectors will form a single integrated system together with the beam pipe. The aim of this part of the programme is the development of a unique system of multichannel UHF fecdthroughs, transmitting lines and multipad anodes, a beam pipe design and the final design of the MCP-based detector. In addition, the detectors themselves and their readout electronics will have to be developed. The RF beam induced possible heating is also supposed to be studied and RF detector protection to be designed.

Finally, various in-lab and in-beam tests of the detector components and the detector itself are necessary to define the right solution.

The design of the detector strongly depends on the availability of the corre-sponding technologies. The proposed systems were discussed at various meetings of the ALICE collaboration at CERN and are supposed to be implemented in the Technical project of the Inner Tracker for ALICE at the LHC. These work is supppoeed to be accomploished in a rather short time in order to fulfill the requirements of the Technical design stage, and to allow the production and assembly of the final components to start by the year 1997. The close cooperation with INFN (Torino), CERN and Utrecht is essential in the promotion of the project. Specialists from various civil Russian institutions and other enterprises (St. Petersburg Slate University, Institute for Nuclear Research, Joint Institute of Nuclear Research, Mendeleev Institute for Metrology (VNIIM), "Svetlana", "Avangard", "Granit", and Sl.Pctcrsburg Institute for Nuclear Physics) will take part.

The electronic communication between participants is supposed to be developed and coordinated on the base of the University's VAX cluster and local Ethernet, the full scale Internet access has to provide the reliable information transmittion between different aitea at which the work will be done. Full computer simulation with GEANT Montcr-Carlo code during the designing of the ITS and FMD-MCP will bedone in order lo reduce the number of detector prototypes testa. The noftware inter-face between the GEANT and CAD in forseen also Terms of the project: Jan.1995 - December 1996. Funding requested 850.7 kUSD.


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