论文标题
Atlas Tile量热计的紧凑型加工模块的设计
Design of the Compact Processing Module for the ATLAS Tile Calorimeter
论文作者
论文摘要
LHC将从2025年开始对高光度LHC（HL-LHC）开始进行大规模升级，以使瞬时光度增加5至7倍，而不是名义值。 II相升级（2025-2027）将需要ATLAS实验的触发和读数电子设备，使其与HL-LHC施加的严格条件一起运行。在此升级期间，Tilecal的访问和探测器读数电子设备都将被新的数据采集完全取代，该数据将为Atlas Trigger System提供全粒度信息。紧凑的处理模块负责LHC束跨时钟分布，向检测器，探测器电子设备的配置，数据采集，细胞能量重建以及数据传输到TDAQ接口（TDAQI）。 CPM设计为AMC Form-Factor板，配备了8个SAMTEC Firefly模块，用于与检测器进行通信，Xilinx Kintex Ultrascale FPGA用于数据获取和处理，Xilinx 7 FPGA，用于慢速控制和监测的Xilinx Artix 7 FPGA，以及其他子系统，用于为FPGAS和通信产生高质量时钟。通过32 GBPS接收探测器数据的32千兆收发器链接和4.8 Gbps的LHC时钟通过32千兆收发器链路实现了与探测器电子设备的高速通信，而重建的细胞能通过4个全模板链路传输到TDAQI。触发数据通过Felix网络通过全模式链接传输到Atlas TDAQ系统。本文介绍了Atlas Tile量热计相-II升级的紧凑处理模块的设计以及第一原型的结果和经验。
The LHC will undergo a major upgrade starting in 2025 towards the High Luminosity LHC (HL-LHC) to increase the instantaneous luminosity by a factor of 5 to 7 compared to the nominal value. The Phase-II Upgrade (2025-2027) will require the trigger and readout electronics of the ATLAS experiment to operate with the stringent conditions imposed by the HL-LHC. During this upgrade, both on- and off-detector readout electronics of TileCal will be completely replaced with a new data acquisition which will provide full-granularity information to the ATLAS trigger system. The Compact Processing Modules are responsible for the LHC bunch-crossing clock distribution towards the detector, configuration of the on-detector electronics, data acquisition, cell energy reconstruction, and data transmission to the TDAQ interface (TDAQi). The CPM has been designed as an AMC form-factor board equipped with 8 Samtec FireFly modules for communication with the detector, a Xilinx Kintex UltraScale FPGA for data acquisition and processing, a Xilinx Artix 7 FPGA for slow control and monitoring, and other subsystems to generate high-quality clocks for the FPGAs and communications. The high-speed communication with the on-detector electronics is implemented via 32 GigaBit Transceiver links receiving detector data at 9.6 Gbps and transmitting commands and the LHC clock at 4.8 Gbps, while the reconstructed cell energies are transmitted to TDAQi via 4 FULL-mode links. Triggered data is transmitted through a FULL-mode link to the ATLAS TDAQ system via the FELIX network. This paper introduces the design of the Compact Processing Modules for the ATLAS Tile Calorimeter Phase-II Upgrade and the results and experiences with the first prototypes.
