Author: Seabra, L.
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THMPA05 The AFP Detector Control System 1315
  • L. Seabra
    LIP, Lisboa, Portugal
  • E. Banaś, S. Czekierda, Z. Hajduk, J. Olszowska, B. Zabinski
    IFJ-PAN, Kraków, Poland
  • D. Caforio
    Institute of Experimental and Applied Physicis, Czech Technical University in Prague, Praha, Czech Republic
  • P. Sicho
    Czech Republic Academy of Sciences, Institute of Physics, Prague, Czech Republic
  The ATLAS Forward Proton (AFP) detector is one of the forward detectors of the ATLAS experiment at CERN aiming at measuring momenta and angles of diffractively scattered protons. Silicon Tracking and Time-of-Flight detectors are located inside Roman Pot stations inserted into beam pipe aperture. The AFP detector is composed of two stations on each side of the ATLAS interaction point and is under commissioning. The detector is provided with high and low voltage distribution systems. Each station has vacuum and cooling systems, movement control and all the required electronics for signal processing. Monitoring of environmental parameters, like temperature, is also available. The Detector Control System (DCS) provides control and monitoring of the detector hardware and ensures the safe and reliable operation of the detector, assuring good data quality. Comparing with DCS systems of other detectors, the AFP DCS main challenge is to cope with the large variety of AFP equipment. This paper describes the AFP DCS system: a detector overview, the operational aspects, the hardware control of the AFP detectors, the high precision movement, cooling, and safety vacuum systems.  
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THPHA069 Control System for Atlas Tilecal HVremote Boards 1543
  • F. Martins, A. Gomes, L. Gurriana, A. Maio, L. Seabra
    LIP, Lisboa, Portugal
  • G.G. Evans, A. Gomes, A. Maio, C. Rato, J.M. Sabino, J.A. Soares Augusto
    FCUL, Lisboa, Portugal
  • G.G. Evans
    BioISI, Lisboa, Portugal
  • J.A. Soares Augusto
    Inesc-ID, Lisboa, Portugal
  Funding: Funding from FCT (Portuguese government funding agency of the MCTES); project "Colaboracão na Experiência ATLAS", CERN/FISNUC/0005/2015
One of the proposed solutions for upgrading the high voltage (HV) system of Tilecal, the ATLAS hadron calorimeter, consists in removing the HV regulation boards from the detector and deploying them in a low-radiation room where there is permanent access for maintenance. This option requires many ~100m long HV cables but removes the requirement of radiation hard boards. That solution simplifies the control system of the HV regulation cards (called HVRemote). It consists of a Detector Control System (DCS) node linked to 256 HVRemote boards through a tree of Ethernet connections. Each HVRemote includes a smart Ethernet transceiver for converting data and commands from the DCS into serial peripheral interface (SPI) signals routed to SPI-capable devices in the HVRemote. The DCS connection to the transceiver and the control of some SPI-capable devices via Ethernet has been tested successfully. It was fabricated a test board (HVRemote-ctrl) with the interfacing sub-system of the HVRemote. It is being tested through SPI-interfaces and several devices were already validated. A next version adds a few more ADC/DAC devices for checking their suitability for the final design.
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