The Versatile Transceiver: towards production readiness

Soós, C.; Marı́n, M.; Détraz, S.; Olanterä, Lauri; Sigaud, Christophe; Storey, S; Troska, J.; Vasey, F.; Vichoudis, P.

doi:10.1088/1748-0221/8/03/c03004

Cited by 26 publications

(22 citation statements)

References 9 publications

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“…The GEM Electronic Board (GEB), on which the VFAT3s are plugged in, then routes the data to the OptoHybrid which acts as concentrator board and communication relay for the 24 VFAT3s. The communication with the off-detector system is performed through the GigaBit Transceiver (GBT) [5] chipset and the Versatile Link [6] components installed on the OptoHybrid. Both projects are led by CERN and provide radiation hard tools for LHC experiments.…”

Section: The Ge1/1 Data Acquisition Systemmentioning

confidence: 99%

A micro-TCA based data acquisition system for the Triple-GEM detectors for the upgrade of the CMS forward muon spectrometer

Lenzi

2017

J. Inst.

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We will present the electronic and DAQ system being developed for TripleGEM detectors which will be installed in the CMS muon spectrometer. The microTCA system uses an Advanced Mezzanine Card equipped with an FPGA and the Versatile Link with the GBT chipset to link the front and backend. On the detector an FPGA mezzanine board, the OptoHybrid, has to collect the data from the detector readout chips to transmit them optically to the microTCA boards using the GBT protocol. We will describe the hardware architecture, report on the status of the developments, and present results obtained with the system.In this contribution we will report on the progress of the design of the electronic readout and data acquisition (DAQ) system being developed for Triple-GEM detectors which will be installed in the forward region (1.5 ¡ eta ¡ 2.2) of the CMS muon spectrometer during the 2nd long shutdown of the LHC, planed for the period 2018-2019. The architecture of the Triple-GEM readout system is based on the use of the microTCA standard hosting FPGA-based Advanced Mezzanine Card (AMC) and of the Versatile Link with the GBT chipset to link the front-end electronics to the micro-TCA boards. For the on-detector electronics a new front-end ASIC, called VFAT3, is being developed for the CMS Triple-GEM system. Its architecture is based on the TOTEM VFAT2 chip which is currently used to test the CMS Triple-GEM prototypes and the new data acquisition system. On detector, a Xilinx Virtex-6 FPGA mezzanine board, called the OptoHybrid, has to collect the data from 24 front-end chips and to transmit the data optically to the off-detector micro-TCA electronics as well as to transmit the trigger data at 40 MHz to the CMS Cathode Strip Chamber (CSC) trigger. Two versions of this OptoHybrid have already been designed. They are used to readout the CMS Triple-GEM prototypes equipped with VFAT2 chips and both have been tested with beam at CERN. The microTCA electronics provides the interfaces from the detector (and front-end electronics) to the CMS DAQ, TTC (Timing, Trigger and Control) and Trigger systems. Each micro-TCA crate can house 12 AMC boards. Currently the GLIB board designed by CERN is used for the system developments. For the final system more powerful boards based on the Virtex-7 or Kintex-7 Xilinx FPGA are envisaged. During the LHC yearly extended technical stop of winter [2016][2017]8 Triple-GEM detectors will be installed inside CMS. They will be read-out with the existing VFAT2 chip and with the data acquisition system described above. To prepare this installation, called slice-test, a dedicated test bench has been set-up at CERN to integrate the GEM with the CSC electronics. This work also includes the development of the DAQ software based on xDAQ and of the detector control system.In this contribution we will describe the hardware architecture and expected performance, report on the status of the developments of the various electronic components and present preliminary results obtained with the microTCA-based readout sys...

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Section: The Ge1/1 Data Acquisition Systemmentioning

confidence: 99%

A micro-TCA based data acquisition system for the Triple-GEM detectors for the upgrade of the CMS forward muon spectrometer

Lenzi

2017

J. Inst.

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“…Para a realização dos testes em hardware foram preparados dois arranjos diferentes. Cada um deles têm em comum versões dos primeiros protótipos da placa VLDB (Versatile Link Demonstrator Board) [21], parte do programa Versatile Link [22], que contém basicamente um chip GBTx, a primeira versão do GBT-SCA, módulos de comunicação óp- tica bidirecional VTRx [23,24] e portas E-Link na forma de conectores HDMI, todos estes elementos desenvolvidos de forma customizada pelo projeto Radiation Hard Optical Link pelo CERN, que também inclui todo o sistema GBT, para a emulação de elementos comuns na FE dos futuros upgrades dos experimentos do LHC.…”

Section: Testes Em Hardwareunclassified

Development and validation of the ... LHCb upgrade

Caplan¹,

Rodrigues²,

Gaspar³

et al. 2016

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Resumo: O Upgrade do experimento LHCb prevê uma atualização do sistema de aquisição de dados operar a 40 MHz, necessária para operar dez vezes a luminosidade a fim de seu projeto inicial. Para tanto, a eletrônica de Front-End de todos os subsistemas será modificada permitindo o gerenciamento de uma maior taxa de dados gerada, maior ocupância dos subdetectores e operação sem uso de Trigger. Neste trabalho, sucessor experimental e mais aprofundado do trabalho A generic firmware core to drive the Front-End GBT-SCAs for the LHCb upgrade [1], é descrito uma nova maneira de transmitir informações de controle para a eletrônica de Front-End, aproveitando as conexões ópticas bidirecionais e recursos dos ASICs GBT e GBT-SCA. São apresentados detalhes de sua implementação bem como testes de validação. O resultado deste trabalho será usado no próximo upgrade do LHCb, que ocorrerá entre 2018 e 2019, assim está sendo avaliado seu uso como um pacote de firmware padronizado para os outros experimentos do LHC-ATLAS, CMS e ALICE. Palavras chave: LHCb; Processamento de sinais digitais (DSP); Controle e monitoramento de sistemas online; Sistemas de controle de detectores.

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“…The base solution for driving the optical link is based on the Rad-Hard GBTx ASIC [9] in combination with the VTRx module [14]; both are specially designed to be used on front-end systems exposed to radiation. However due to GBTx unavailability during the initial developments a backup solution, based on its emulation, was required.…”

Section: Gbt Optical Link At 48 Gbpsmentioning

confidence: 99%

Secondary particle acquisition system for the CERN beam wire scanners upgrade

Sirvent¹,

Dehning²,

Emery³

et al. 2015

J. Inst.

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The increasing requirements of CERN experiments make essential the upgrade of beam instrumentation in general, and high accuracy beam profile monitors in particular. The CERN Beam Instrumentation Group has been working during the last years on the Wire Scanners upgrade. These systems cross a thin wire through a circulating beam, the resulting secondary particles produced from beam/wire interaction are detected to reconstruct the beam profile. For the new secondary shower acquisition system, it is necessary to perform very low noise measurements with high dynamic range coverage. The aim is to design a system without tuneable parameters and compatible for any beam wire scanner location at the CERN complex. Polycrystalline chemical vapour deposition diamond detectors (pCVD) are proposed as new detectors for this application because of their radiation hardness, fast response and linearity over a high dynamic range. For the detector readout, the acquisition electronics must be designed to exploit the detector capabilities and perform bunch by bunch measurements at 40MHz. This paper describes the design challenges of such a system, analysing different acquisition possibilities from the signal integrity point of view. The proposed system architecture is shown in detail and the development status presented.

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The Versatile Transceiver: towards production readiness

Cited by 26 publications

References 9 publications

A micro-TCA based data acquisition system for the Triple-GEM detectors for the upgrade of the CMS forward muon spectrometer

A micro-TCA based data acquisition system for the Triple-GEM detectors for the upgrade of the CMS forward muon spectrometer

Development and validation of the ... LHCb upgrade

Secondary particle acquisition system for the CERN beam wire scanners upgrade

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