Cooling System
for the Silicon Tracker of the Atlas Inner Detector

Introduction
The silicon pixel and microstrip detectors of the ATLAS inner tracker are required to operate at temperatures of -7o C or less to assume them a long operational life in the high radiation environment of the inner tracking volume. The cooling not only has to cope with the power load of the front end electronics, but also with the heat dissipated in the detector substrates and the low mass power distribution cabling. This it must do whilst interposing the minimum amount of extra dead material.

The Cooling Technologies

Installation of the Cooling System at CERN in 1998

Installation of the Cooling System at CERN in 1999-2000

Development History and Phase II Cooling System Demonstrator 2001

Study of the Cooling Facility for the ATLAS SR1 Bldg. - 2002-2003

Commitioning of the Cooling Facility for the ATLAS SR1 Bldg. 2004

Non-Conductive Coolant Based Systems
Aqueous Based Cooling Systems
Results from Measurement at CPP Marseille
Results from Measurements Performed at Genoa University
Previous Measurements: Ladders, Sector 4
Results from Measurement at LBL

Implementation&Control System

Cooling Development Centres

CPP Marseille (contact person: G. Hallewell)

University of Genoa (contact person: C. Caso)

Other Co-operating Institutes:

CTU, Prague (contact person: V. Vacek)

RAL, (contact person: G. Tappern)
CERN (contact person: T. Niinikoski)
University of Wuppertal (contact person: G. Lenzen)

INFO from the meetings

Last update, NOVEMBER 98
Prepared by G. Hallewell and V. Vacek