Data-Taking Network for COMET Phase-I
Data-Taking Network for COMET Phase-I
复制标题
COMET一期数据采集网络
DOI：
10.1109/tns.2021.3086617
复制
发表时间：
2021
影响因子：
1.8
通讯作者：
Youichi Igarashi and Hiroshi Sendai
中科院分区：
文献类型：
--
作者：
Wada Kohei;Minamino Akihiro;Ito Hiroshi;Ommura Yuga;Ishitsuka Masaki;Yano Takatomi;渡辺薫;Youichi Igarashi and Hiroshi Sendai
J-PARC正在建造一个名为COMET的μ-e转换实验。试验将采用两阶段办法进行，包括第一阶段和第二阶段。第一阶段的数据采集系统是基于通用网络技术开发的。数据采集系统由两类网络组成。一个是前端网络。该网络捆绑了大约15个具有1 Gb光纤网络端口的前端设备。前端计算机通过其网络从设备收集数据。另一个是后端网络，它使用10 Gb连接从前端计算机收集所有事件片段。我们在前端网络中使用了低成本的1-Gb/10-Gb光网络交换机。我们没有为后端网络使用网络交换机。事件构建PC有10个10 Gb网络端口，前端PC通过10 Gb光纤网络设备直接连接到事件构建PC。我们通过使用此配置的事件构建来评估数据获取性能。前端网络的事件构建吞吐量达到337 MiB/s。后端网络的事件构建吞吐量达到1.2 GiB/s。这意味着我们可以通过使用这种结构来降低数据采集网络的成本，而不会降低性能。此外，我们评估了写入速度的本地存储RAID磁盘系统连接到后端PC使用SAS接口和远程网络复制从实验位置到永久存储。
An experiment to search for a μ-e conversion named COMET is being constructed at J-PARC. The experiment will be carried out using a two-stage approach comprising of Phase-I and Phase-II. The data-taking system of Phase-I was developed based on common network technology. The data-taking system consisted of two types of networks. One is a front-end network. This network bundles around 15 front-end devices that have a 1-Gb optical network port. A front-end computer collects the data from the devices via its network. The other is a back-end network that collects all event fragments from the front-end computers using a 10-Gb connection. We used a low-cost 1-Gb/10-Gb optical network switch for the front-end network. We did not use network switches for the back-end network. The event-building PC has ten 10-Gb network ports, and the front-end PCs are directly connected to the event-building PC with 10-Gb optical network devices. We evaluated the data-taking performance with an event-building using this configuration. The event-building throughput of the front-end network achieved 337 MiB/s. The event-building throughput of the back-end networks achieved 1.2 GiB/s. This means that we can reduce the cost of the data-taking network by using this structure without deteriorating the performance. Moreover, we evaluated the writing speed of the local storage RAID disk system connected to a back-end PC using an SAS interface and a long-distance network copy from the experiment location to permanent storage.
FPGA 上用于 COMET 读出电子设备的千兆位以太网菊花链
影响因子：
1.8
作者：
Hamada Eitaro;Fujii Yuki;Igarashi Youichi;Ikeno Masahiro;Mihara Satoshi;Nishiguchi Hajime;Oishi Kou;Uchida Tomohisa;Ueno Kazuki;Yamaguchi Hiroshi
通讯作者：
Yamaguchi Hiroshi
用于 Belle 数据采集系统的无开关事件构建场
DOI：
10.1109/nssmic.2000.949941
发表时间：
2000
期刊：
2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)
影响因子：
--
作者：
M. Nakao;R. Itoh;S. Suzuki;M. Yamauchi;E. Won;Hee;Sue Rho;Ho Kim;H. Kim;S. Yanaka
通讯作者：
S. Yanaka
彗星一期
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
P. Litchfield
通讯作者：
P. Litchfield