CERN Accelerating science

ATLAS Slides
Report number	ATL-TILECAL-SLIDE-2017-910
Title	Control System for ATLAS TileCal HVRemote boards
Author(s)	Pedro Martins, Filipe Manuel (LIP) ; Gurriana, Luis (LIP) ; Oleiro Seabra, Luis Filipe (LIP) ; Evans, Guiomar (U. Lisbon (main)) ; Gomes, Agostinho (LIP) ; Maio, Amelia (LIP) ; Pinto Silva Rato, Catia Sofia (LIP) ; Almendra Sabino, Joao Maria (LIP) ; Augusto, Jose (U. Lisbon (main))
Corporate author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Submitted to	16th International Conference on Accelerator and Large Experimental Physics Control Systems, Barcelona, Spain, 8 - 13 Oct 2017
Submitted by	[email protected] on 16 Oct 2017
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	ATLAS ; TileCal ; Upgrade ; DCS ; HVRemote
Abstract	One of the proposed solutions for upgrading the high voltage (HV) system of TileCal, the ATLAS central 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 ∼100 m long HV cables but removes the requirement of radiation hard boards. This 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. A test board (HVRemote-Ctrl) with the interfacing sub-system of the HVRemote was fabricated. 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.