Data Flow and High Level Trigger of Belle II DAQ System

被引：25

作者：

Itoh, R. ^{[1
]}

Higuchi, T. ^{[1
]}

Nakao, M. ^{[1
]}

Suzuki, S. Y. ^{[2
]}

Lee, S. ^{[3
]}

机构：

[1] Inst Particle & Nucl Studies KEK, Tsukuba, Ibaraki 3050801, Japan

[2] Comp Res Ctr KEK, Tsukuba, Ibaraki 3050801, Japan

[3] Korea Univ, Dept Phys, Seoul 136701, South Korea

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2013年 / 60卷 / 05期

关键词：

Data acquisition; high energy physics instrumentation; real-time systems;

D O I：

10.1109/TNS.2013.2273091

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The Belle II experiment is a new generation B-factory experiment at the upgraded accelerator SuperKEKB. The luminosity of the accelerator is expected to be more than 40 times higher than that of the previous KEKB, and the average Level 1 trigger rate is estimated to become up to 30 kHz with a total raw data size of similar to 1.1 Mbytes resulting in a data throughput of >= 30 Gbytes/sec. In order to manage this huge data flow, the Belle II DAQ system is designed to perform a multi-step data reduction using a large number of CPUs implemented in various DAQ components from the detector readout modules to the High Level Trigger farm. In this article, the design of the data flow and the architecture of the High Level Trigger farm in the Belle II DAQ system is reported.

引用

页码：3720 / 3724

页数：5

共 6 条

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