9-15 June 2018
Woodlands Conference Center
America/New_York timezone
**** See you at Real Time 2020 ****

Readout method based on PCIe over optical fiber for CBM-TOF super module quality evaluation

14 Jun 2018, 14:35
1h 30m
Woodlands Conference Center

Woodlands Conference Center

159 Visitor Center Dr, Williamsburg, VA 23185
Poster presentation Data Acquisition Poster 2

Speaker

Mr Jianhui YUAN (University of Science and Technology of China)

Description

The Compressed Baryonic Matter (CBM) experiment will investigate the QCD phase diagram at high net baryon densities and moderate temperatures. CBM Time of Flight (TOF) system is composed of super modules containing high performance Multi-gap Resistive Plate Chambers (MRPCs). During the mass production, each super module assembled with MRPCs needs quality evaluation, which includes time measurement and data readout. Read out electronics encounter the challenge of reading data from a super module at a speed of about 6 Gbps. In this paper, a read out method based on PCIe over optical fiber is proposed for CBM-TOF super module quality evaluation. The digitized data from super module will be concentrated at the front-end electronics, and then be transmitted to a PCIe switch module (PSM) over optical fiber using PCIe protocol. The PSM is directly plugged into the motherboard via gold fingers at the backend data acquisition server. With this readout method, a high-speed transmission rate can be reached. Furthermore, a PSM can receives data from several super modules simultaneously, which is important to improve the evaluation efficiency. This readout method simplifies the architecture of readout electronics and supports long distance transmission between frontend and backend.

Minioral No
Description readout scheme
Country China
Speaker Jianhui YUAN
Institute USTC

Primary authors

Mr Jianhui YUAN (University of Science and Technology of China) Prof. Ping CAO (University of Science and Technology of China) Dr Xiru HUANG (University of Science and Technology of China) Mr Chao LI (University of Science and Technology of China) Prof. Qi AN (University of Science and Technology of China)

Presentation Materials

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