ATLAS SCT POWER SUPPLY SYSTEM

• DOI: 10.5170/cern-2007-007.365
• Publication Date: 2007-01-01
• Authors: P. W. Phillips
• Keywords: Shielded cable; High Voltage

The ATLAS SCT (semiconductor tracker) comprises 2112 barrel modules mounted on four concentric barrels of length 1.5m and up to 1m diameter, 1976 endcap supported by a series 9 wheels at each end the barrel. Each module is powered its own independent, floating low high voltage power supplies, referenced ground detector shield. Correspondingly, has distinct cable chain all way back service cavern. This presentation outlines structure specification Power Supply System, including level control software operational model. I. SYSTEM REQUIREMENTS Although used in regions are geometrically very different, they electrically similar. desire provide with single reference potential resulted adoption single, multi-wire, shielded [1] hence location floating, programmable Low Voltage (LV) High (HV) supply channels together (PS) crate. [V] Current [mA] Parameter Min. Typ. Max. Vcc 0.0 3.5 5.1 90