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The Interface and Control System of the Upgraded HVOpto/HVRemote Card of the TileCal

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Bibliographic Details
Summary:To comply with the increase in luminosity of the LHC (Large Hadron Collider) in the next decades, the electronics of the ATLAS (A Toroidal LHC Apparatus) experiment is being upgraded. Included in the upgrade is the interfacing and control electronics system of the HVOpto/HVRemote cards in the TileCal (Tile Calorimeter) detector, which provides high voltages to about 104 photomultipliers (PMTs). This paper presents the new interfacing architecture for the system and details the design of a prototype control board (HVRemote-Ctrl) used for test and validation of the new architecture. The tests evaluate the system multiplexing capabilities needed to monitor all the TileCal PMTs in real time. The communication channels involved, supported in Ethernet and SPI interfaces/protocols, have been fully tested. Some results from the tests already completed are presented.
Main Authors:Augusto, José Soares
Other Authors:Rato, C.; Gurriana, L.; Seabra, L.; Gomes, A.; Evans, Guiomar; Maio, A.
Subject:Electronics; Instrumentation; Instrumentation for High-Energy Physics; Electronic Control; Ethernet/SPI Interfacing
Year:2017
Country:Portugal
Document type:article
Access type:unknown
Associated institution:Instituto Superior de Engenharia de Lisboa
Language:English
Origin:i-ETC : ISEL Academic Journal of Electronics Telecommunications and Computers
Description
Summary:To comply with the increase in luminosity of the LHC (Large Hadron Collider) in the next decades, the electronics of the ATLAS (A Toroidal LHC Apparatus) experiment is being upgraded. Included in the upgrade is the interfacing and control electronics system of the HVOpto/HVRemote cards in the TileCal (Tile Calorimeter) detector, which provides high voltages to about 104 photomultipliers (PMTs). This paper presents the new interfacing architecture for the system and details the design of a prototype control board (HVRemote-Ctrl) used for test and validation of the new architecture. The tests evaluate the system multiplexing capabilities needed to monitor all the TileCal PMTs in real time. The communication channels involved, supported in Ethernet and SPI interfaces/protocols, have been fully tested. Some results from the tests already completed are presented.

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