论文标题
40 Gbps读取界面凝视着Agata项目
40 Gbps Readout interface STARE for the AGATA Project
论文作者
论文摘要
先进的伽马跟踪阵列（AGATA）多检测器光谱仪将提供精确的信息，以研究沿质子和中子滴线以及超重型核的外来核物质（非常不平衡的质子（z）和中子（n）数字）的性质（非常不平衡的质子（Z）和中子（N）数字）。这是使用粒子加速器的最新技术完成的。 AGATA光谱仪由180个高纯净锗探测器组成。每个检测器分为38个段。非常苛刻的项目要求是以高分辨率（<1x 10 -3）的高分辨率（50 kevents / sec / crystal）来测量以非常高的分辨率（<1x 10 -3）进行测量。这会导致每个晶体的数据传输速率非常高（5至8 Gbps）。将38个片段采样 @ 100 MHz，分辨率为14位。将样品连续传输到盖帽模块，该模块将数据速率从64 Gbps降低到5 Gbps。 CAP模块还添加了连续监视数据，从而导致总数据速率为10 Gbps。凝视模块旨在适合盖帽模块和计算机农场之间。它将使用10 Gbps UDP连接使用的送货保险机制将数据包装，并将其传输到服务器农场，以确保所有数据已传输。
The Advanced GAmma Tracking Array (AGATA) multi detector spectrometer will provide precise information for the study of the properties of the exotic nuclear matter (very unbalanced proton (Z) and neutron (N) numbers) along proton- and neutron- drip lines and of super-heavy nuclei. This is done using the latest technology of particle accelerators. The AGATA spectrometer consists of 180 high purity Germanium detectors. Each detector is segmented into 38 segments. The very harsh project requirements are to measure gamma ray energies with very high resolution (< 1x 10 -3) at a high detector counting rate (50 Kevents / sec / crystal). This results in a very high data transfer rate per crystal (5 to 8 Gbps). The 38 segments are sampled @ 100 MHz with 14 bits of resolution. The samples are continuously transferred to the CAP module which reduces the data rate from 64 Gbps to 5 Gbps. The CAP module also adds continuous monitoring data which results in total outgoing data rate of 10 Gbps. The STARE module is designed to fit between the CAP module and the computer farm. It will package the data from the CAP module and transmit it to the server farm using a 10 Gbps UDP connection with a delivery insurance mechanism implemented to ensure that all data is transferred.
