Architecture and Implementation of the Front-End Electronics of the Time Projection Chambers in the T2K Experiment

被引：24

作者：

Baron, P. ^{[1
]}

Besin, D. ^{[1
]}

Calvet, D. ^{[1
]}

Coquelet, C. ^{[1
]}

De La Broise, X. ^{[1
]}

Delagnes, E. ^{[1
]}

Druillole, F. ^{[1
]}

Le Coguie, A. ^{[1
]}

Monmarthe, E. ^{[1
]}

Zonca, E. ^{[1
]}

机构：

[1] CEA Saclay, Inst Rech Lois Fondamentales Univers, F-91191 Gif Sur Yvette, France

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2010年 / 57卷 / 02期

关键词：

Front-end electronics; switched capacitor arrays; FPGA; fast networks;

D O I：

10.1109/TNS.2009.2035313

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The tracker of the near detector in the T2K neutrino oscillation experiment comprises three time projection chambers based on micro-pattern gaseous detectors. A new readout system is being developed to amplify, condition and acquire in real time the data produced by the 124.000 detector channels. The cornerstone of the system is a 72-channel application specific integrated circuit which is based on a switched capacitor array. Using analog memories combined with deferred digitization enables reducing the initial burstiness of traffic from 50 Tbps to 400 Gbps in a practical manner and with a very low power budget. Modern field programmable gate arrays coupled to commercial digital memories are the next elements in the chain. Multi-gigabit optical links provide 140 Gbps of aggregate bandwidth to carry data outside of the magnet surrounding the detector to concentrator cards that pack data and provide the interface to commercial PCs via a standard Gigabit Ethernet network. We describe the requirements and constraints for this application and justify our technical choices. We detail the design and the performance of several key elements and show the deployment of the front-end electronics on the first time projection chamber where the final tests before installation on-site are being conducted.

引用

页码：406 / 411

页数：6

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