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Remote Diagnosis and Operation of the ATLAS Tile Calorimeter Control System

The Tile Calorimeter (TILECAL) is a crucial component of the ATLAS detector located 100 meters underground and is inaccessible during LHC operation due to ionizing radiation. To ensure continuous monitoring and control, the Detector Control System (DCS) facilitates full remote diagnosis and operation. A Finite State Machine (FSM) plays a pivotal role in the DCS, enabling essential functionalities like hardware management, automatic operations, and system integration. This system guarantees reliable performance and safety for the ATLAS experiment.

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Remote Diagnosis and Operation of the ATLAS Tile Calorimeter Control System

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  1. The ATLAS/TILECAL Detector Control System EBC LBC LBA EBC Helena Santos (LIP − Lisbon) on behalf of the Tile Calorimeter Group pictorial view of the ATLAS calorimeters Tile barrel Tile extended barrel TILECALis the hadronic calorimeter of ATLAS. The detector is located 100 m underground and can not be accessed during LHC running due to ionizing radiation. Thus, it must allow full remote diagnosis and operation. This is assured by the DCS– the system responsible for coherent and safe operation of the detector.

  2. SYSTEMS Finite State Machine (FSM)‏ FSM is extensively used in ATLAS DCS. It allows, among other, to enable/disable malfunctioning hardware, automatic detector operations, single subsystem operations and control integration in the ATLAS DCS. TILE EBA LBA LBC EBC Infrastructure CAN PSU Partition COOLING COOLING 200V PS RACKS VME Crates AUX Boards LASER DDC Branch 1 Branch 2 Module 9 Branch 3 Module 10 LVPS 9 Branch 4 …. Drawer 9 Module 23 Module 24 ROD crate TTC crate

  3. FSM NAVIGATION Click to see fLVPS Click to see Drawer

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