MPGD Micromegas GEM MPGD ALICE CMS University of
- Slides: 35
背景介绍———MPGD(微结构气体探测器): Micromegas GEM … … MPGD被应用于大型实验中: ALICE CMS … … University of Science and Technology of China 核探�与核�子学国家重点��室 Page 4
背景介绍——SRS 小系统: 2 FEB +1 Adapter+1 FEC+ 1 Computer University of Science and Technology of China 核探�与核�子学国家重点��室 Page 8
背景介绍——SRS 大系统: 多个 FEB +多个 Adapter+多个FEC+ SRU+1 Computer University of Science and Technology of China 核探�与核�子学国家重点��室 Page 9
背景介绍——SRS FEB靠近探测器 Adapter板和FEC板: 6 U、Euro-card 标准板卡 安装在满足欧标机箱中 University of Science and Technology of China 核探�与核�子学国家重点��室 Page 10
VA 140在峰保持HOLDB信号的作用下保持住峰值 Read-out timing of VA 140串行输出: 由Ckb(fmax = 10 MHz)和shift_in_b信号共同作用 VA 140可级联: 当前VA 140的shift_out_b信号可以作为下一片VA 140的shift_in_b University of Science and Technology of China 核探�与核�子学国家重点��室 Page 16
Adapter——APV 25 1. APV out: -4 m. A to +4 m. A 1 m. A/MIP 1 MIP=25000 e 2. Noise : peak mode: (270+38/pf)e deconvolution: (430+61/pf)e If Cin=2 pf,noise=346 e 3. Noise/APV out=346/(25000*8) =0. 00173 ENOB>9 Bit University of Science and Technology of China AD 9637 输入电压范围 2 Vp-p 功耗/每通道 60 m. W (80 Msps) 精度 12 Bit 通道数 8 带宽 650 MHz 采样率 40/80 Msps 封装 LFCSP SNR 71. 5 d. BFS SFDR 92 d. Bc 核探�与核�子学国家重点��室 Page 28
FEC FEC需要控制前端FEB与Adapter和实现数据传输 前端接口(ADC接口):PCIe 数据缓存:DDR 3, FIF 0 软核处理器:Microblaze 数据传输:SFP(GTX), PHY(MAC) 配置芯片:FLASH 时钟系统: • 125 M时钟晶振:FPGA,PHY, GTX • 40 M晶振: FPGA主时钟,Adapter University of Science and Technology of China 核探�与核�子学国家重点��室 Page 30
FEC 前端板对FEC的管脚需求 VA 140对管脚需求 Adapter板控制信号(SCLK、CS、SDATA_A、SDATA_B): 4*8 = 32 FEB板控制信号(Ckb、Shift_in_b、VA_HOLDB、VA_DRESET、VA_test_on、Cal_sig): 6*8 = 48 APV 25对管脚需求 Adapter板信号 差分控制信号(CLK_n、CLK_p、DCO_n 、DCO_p、FCO_n、FCO_p): 3*1 单端控制信号(SCLK、CSB SDIO、PDWN、SYNC、Trigger): 6*1 差分数据信号(DDATA_n、DDATA_p): 8*1 FEB板控制信号(Trigger、CLK、SDAIN、RST、APV_I 2 C_EN): 6*8 University of Science and Technology of China 核探�与核�子学国家重点��室 Page 31
��! University of Science and Technology of China Page 35
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